waterjet abrasives main features:

abrasive jet cutting metal working due to the physical nature of the material being cut does not affect the existence of thermal deformation, no secondary processing; narrow kerf, Fused zirconia mullite can improve material utilization; controllable, can be arbitrarily cut from the workpiece point start, end at any point, to adapt to a variety of sheet metal forming cut any curve. Also no cutting dust, tasteless, non-toxic, easy remote control, suitable for harsh environments or hazardous working conditions require proof environments.
Scope: This technology can be designed for general-purpose devices such as two-axis plane cutting machine, brown fused aluminum oxide the machine adopts microcomputer control, adapt to a variety of sheet metal forming cutting arbitrary curves, such as non-metallic materials sheet: marble, granite, glass, ceramics and other works; sheet metal materials: titanium, stainless steel, ordinary steel, etc.; composite sheet: carbon fiber / epoxy, fiberglass / epoxy and so on.This technology can also be developed using reinforced concrete floor, balcony, staircase cutting equipment, as well as for cutting explosive environment. Such as cutting equipment pipelines, coal mine cutting equipment.
Application: cooperation with Shanghai University has developed a pre-mixed abrasive water jet cutting machine tools two-axis plane, were semi-industrial experiments, good performance.

Collectively cutting action from the grinding process

Collectively cutting action from the grinding process in a hard material, mainly for the manufacture of abrasive. The abrasive is sharp, hard material, relatively soft material to the grinding surface. There are natural and artificial abrasive abrasive abrasive two categories. fused zirconia mullite  Classification according to the hardness of superhard abrasive abrasive and general extravagant two categories. A wide range of abrasives, waterjet abrasives from softer household detergents, abrasive stones hardest material to diamond. Each product is a precision abrasive essential materials. Many natural abrasives, has been replaced by artificial abrasive. mold for grinding wheel  In addition to diamonds, the natural abrasive properties are not very stable, but still has its value.
cooperation with Shanghai University has developed a pre-mixed abrasive water jet cutting machine tools two-axis plane, were semi-industrial experiments, good performance.

alluvial garnet gbrasives quality can be compared

According to the evaluation and purchase garnet color, transparency, granularity as the basis. Gem garnet CBN abrasive grit standard requirements: transparency, bright colors, particle size greater than 5 mm. In the international gemstone market, pristine, bright colors, high value garnet crystal clear. Emerald green chrome vanadium aluminum garnet highest value,alluvial garnet gbrasives quality can be compared with those emerald. Red, orange and red garnet is also very valuable. Purple teeth Ukraine is now one of the more common middle and low gems. Gaudy colors, pure, transparent varieties are purple teeth black share. Its refractive index is high, strong luster, color beautiful and diverse, is a favorite gem varieties. Many countries of the purple teeth black as "January birthstone", a symbol of fidelity, love and chastity. Westerners think purple teeth black with a life-saving magic; in the Middle East, White fused aluminum oxide  purple teeth black was elected to do the royal family keepsake. Geological Museum of China, the possession of an orange-red spessartite Shida Jing body, weighing 1397 karats, produced in Xinjiang. U.S. National Museum of Natural History in the collection of the world's best a cinnamon brown yellow transparent stone (iron, calcium and aluminum garnet), is a picture of Christ carved delicate, heavy 61.5 kt, priceless.

waterjet abrasives Scope

The abrasive is sharp, hard material, relatively soft material to the grinding surface. There are natural and artificial abrasive abrasive abrasive two categories. Classification according to the hardness of superhard abrasive abrasive and general extravagant two categories. A wide range of abrasives, from softer household detergents,alluvial garnet gbrasives  abrasive stones hardest material to diamond. Each product is a precision abrasive essential materials. Many natural abrasives, has been replaced by artificial abrasive. In addition to diamonds, the natural abrasive properties are not very stable, but still has its value. Diamond is the hardest abrasive, origin in South Africa, accounting for 95% of world production, and the rest of Brazil, Australia, Guyana and Venezuela. Industries ranging from white to black diamond, can be made after the crushing wheel, abrasive, polishing wheels and grinding powder.
This technology can be designed for  white aluminum oxide  general-purpose devices such as two-axis plane cutting machine, the machine adopts microcomputer control, adapt to a variety of sheet metal forming cutting arbitrary curves, such as non-metallic materials sheet: marble, granite, glass, ceramics and other works; sheet metal materials: titanium, stainless steel, ordinary steel, etc.; composite sheet: carbon fiber / epoxy, fiberglass / epoxy and so on.

alluvial garnet gbrasives, glass beads

Chemical formula: 3Al2O3 · 2SiO2. Colorless. Red or blue with rose-containing impurities. Orthorhombic, a columnar or needle-like crystals. Melting temperature of about 1910 ℃.  alluvial garnet gbrasives‍ Generated calcined clay, high alumina raw material (such as kyanite, andalusite, sillimanite) and ceramics. Is the main component of clay brick, high alumina brick and porcelain,  Moore produced in Scotland Island and other places. Can also be fused legal system. See kyanite and andalusite.

Refractoriness: 1800 ° C while still stable, cubic boron nitride‍ 1810 ° C and a liquid phase decomposition of corundum mullite

Mullite is a high-quality refractory materials, it has expanded uniform, excellent thermal shock resistance, high load softening point, a small high-temperature creep, hardness, chemical resistance and good features, mainly high purity electricity fused mullite, green silicon carbide‍ fused mullite general, all-natural mullite sintered bauxite concentrate and the light burned mullite. 

alluvial garnet gbrasives Nepalese cashmere hammer

Precautions during installation when installing first wheel on safety and quality testing, method, Nepalese cashmere hammer (you can also use a pen) tapping the side of the wheel,alluvial garnet gbrasives‍  then no problem crisp sound positioning problem grinders installed in any position, is the question we must first consider the installation process, only selected reasonable and appropriate location, we can perform other work. Grinder prohibit installed near the equipment and facing the operator or the place has often been in the past, generally the larger wheel shop should set up a dedicated room. If you really can not because of restrictions set up a dedicated factory terrain wheel room, black silicon carbide‍  hould be installed in the front of the wheel height of not less than 1.8m protective bumpers and tailgate requires strong and effective. Unbalanced balance problems mainly by grinding wheel manufacturing and installation is not accurate, so that the wheel does not coincide with the center of gravity and rotary caused. 

Harm imbalance mainly manifested in two aspects, one at high speed when the wheel rotates, causing vibration, could easily lead to the workpiece surface polygonal oscillation marks; on the other hand, unbalanced accelerated vibration spindle and bearing wear, serious when will cause wheel breakage, or even cause an accident. Therefore, the request is greater than or equal to a large installed straight on the card after hours should be static balance wheel when dressing or discovered after shaping the imbalance in the work should be repeated static equilibrium 200mm sand office. Matching matching problem mainly refers to the chuck and the wheel mounting support problems. According to standards, wheel chuck diameter not less than the diameter of installed building sand-third, and the corresponding provisions of the grinding wheel wear to a larger diameter than the diameter of 10mm chuck should be replaced with a new wheel. sandblasting material‍ Thus there is a matching problem chuck and grinding wheel, otherwise it will happen, "big horse car" wasteful equipment and materials; "small horse cart" do not meet the safety requirements, could easily lead to accidents. Therefore, a reasonable match chuck and grinding wheel, one hand can save equipment, cut about materials; hand and meet the requirements for safe operation. Further, between the wheel and the installation of a larger diameter than the chuck should chuck diameter 2mm, 1mm ~ 2mm thick cushion. Protection issues grinder shield is the most important protective device, its role is: When the wheel for some reason destruction at work, can effectively cover the wheel debris, ensure the safety of personnel. 

CBN abrasive grit Fused corundum brick

Fused corundum brick [fused castiong alumina bricks] fused alumina bricks are melted in electric arc furnaces in the aluminum casting to a specific model of a certain shape by the annealing, and then processed by diamond abrasive to give the desired products. The crystalline form of aluminum products CBN abrasive grit‍ according to which the number of how many different and is divided into three kinds, the first one is mainly α-Al2O3 crystal phase, called α corundum brick; second is α-Al2O3 and β-Al2O3 crystalline phase mainly basic content is 1:1, α-phase content is slightly higher, called α, β corundum brick; third crystalline phase to β-Al2O3-based, called β corundum bricks. 

The product α-Al2O3 crystal phase and the β-Al2O3 based, the content of about 50%, the product crystallized dense below 1350 degrees, the corrosion resistance of the glass is excellent fused zirconia mullite‍ in after it is widely used in glass tank furnace, and the work site, the site is usually chute, lip brick, tile and other gates. Internationally fused alumina brick with Japan's Toshiba to do the most good

waterjet abrasives Productio

Production of steel fiber reinforced concrete, the main question is how effective the fiber material is uniformly dispersed in the concrete, the fibers into a group or just avoid dense knot. This has the feeding order a lot of concrete, aggregate and should generally be the first fine aggregate dry mix, white aluminum oxide‍ then add the fibrous material has been evacuated by adding cement and stir in the water. If the cement and water join prematurely, the fibers absorb water, under water adsorption force between the surface tension and fiber, combined with bonding of the cement, steel fiber agglomerate into groups, directly affect the uniformity of steel fiber reinforced concrete, this will greatly reduce the performance of steel fiber reinforced concrete.Ordinary concrete with high compressive Glass beads‍ strength, but the tensile strength, toughness and crack resistance are poor. In general the amount of concrete mixed with steel fiber concrete preparation called steel fiber reinforced concrete. Tensile strength, crack, toughness and compressive strength, flexural strength, flexural strength of steel mold for grinding wheel‍ fiber concrete would have greatly improved. As a new type of steel fiber reinforced concrete concrete, has its unique advantages and performance.

alluvial garnet gbrasives Fused brick

Fused Fused zirconia corundum brick brick brick , also known as the abbreviation is AZS, is based on three chemical composition Al2O3-Zr02-Sio2 ternary phase diagram , according to their order of how much content , Al2O3 take A, Zr02 take Z, Sio2 take S, using the abbreviation for national standards , such as 33 cast AZS bricks, abbreviated as AZS-33 #, 36 cast AZS bricks, abbreviated as AZS-36 #, 41 cast alluvial garnet gbrasives‍ AZS bricks, abbreviated as AZS- 41 # .

Fused brick manufacturing process will be a selection of zircon sand and industrial alumina powder with 1:1 , plus a small amount of NaZO ( in the form of sodium carbonate is added ), B20: ( in the form of boric acid or borax added ) flux , mixed uniform , after the 1900 ~ 2000 ℃ melt cast molding , can be prepared containing zr0233% of the cast slabs . On this basis , the use of part desilication zircon sand as raw material , can brown fused aluminum oxide‍ be obtained with ZrO2 36% ~ 41% of the cast slabs . gaogangyuzhuan corundum brick (z irconia-eorundumrefraetory brick) using industrial alumina powder and a selection of zircon sand as raw material , ZrO2 content is made ??of 33% to 45 % of the refractory Fused zirconia mullite‍ products . Fused zirconia corundum brick is mainly used in the glass industry furnaces , electric glass furnace, the steel industry 's slide, sodium silicate industry kilns and other high temperature erosion -resistant refractory kiln

alluvial garnet gbrasives Liquid relative

Liquid relative to the dry blasting machine blasting machine, the biggest feature is the good control of the blasting process dust pollution and improve the working environment for blasting operations. 

General composition 

A complete liquid blasting machine alluvial garnet gbrasives‍ generally consists of five components, namely the structure of the system, medium power systems, piping systems, control systems and auxiliary systems. 

Works 

‍Sandblasting machine is grinding pump liquid as the liquid feed mill powered by the alluvial garnet gbrasives‍ the liquid (abrasive and water mixture) into CBN abrasive grit‍ the gun. Compressed air as the driving force to accelerate the grinding fluid through the pipeline into the gun in the gun, the gun into the air to accelerate the grinding fluid, and after the injection nozzle, spray the surface to be processed to achieve the desired processing purposes. In liquid blasting machines, grinding brown fused aluminum oxide‍ pump to feed power, compressed air to accelerate momentum.That cleanliness, representative of international standards, there are two: one is the United States 85 years to develop "SSPC-"; second is 76 years in Sweden developed "Sa-", which is divided into four grades were Sa1, Sa2 , Sa2.5, Sa3, the usual common international standards.                                                                          

CBN abrasive grit prohibit close

Must wear protective equipment before working good, are not allowed to work naked arm. Shall not be less than two at work. 

Tank, pressure gauge, safety valve to regularly check. Gas tank once every two weeks emissions of dust, sand filter tank checked once a month. 

CBN abrasive grit‍ the vent pipe and blasting CBN abrasive grit‍ machine door is sealed. The first five minutes of work required to start the ventilation and dust removal equipment, ventilation and dust removal equipment failure when the ban sandblasting machine work. 

Compressed air to slowly open the valve, pressure must not exceed 0.8MPa. 

Sand grain size should be green silicon carbide‍  adapted to the requirements of work, usually between ten to twenty numbers apply, sand should be kept dry. 

When sandblasting machine work,  CBN abrasive grit. When cleaning and adjusting operation of the site should be shut down. 

Who are not allowed to use compressed air to blow dust or joking. 

After work, ventilation and dust removal steel fiber for concrete reinforcement‍ equipment should continue to operate for five minutes and then off to exhaust indoor dust and keep clean. 

Occurrence of personal, equipment accidents, should protect the site and report the authorities.                                                    ‍

alluvial garnet gbrasives Garnet

Garnet is a mineral garnet crystal with pomegranate seeds shapes, colors are very similar, hence the name "garnet." Good color and transparency can be a gem garnet, garnet English name for the Garnet, from the Latin "Granatum" evolved, meaning "as a seed." Common garnet red, but the color alluvial garnet gbrasives‍  is very broad kind enough to cover the entire spectrum of color. Common Garnet recognized for its chemical components into six were red garnet (Pyrope), almandine garnet (Almandine), manganese aluminum garnet (Spessartite), calcium and iron garnet (Andradite), calcium aluminum garnet (Grossular) and uvarovite (Uvarovite). 

Garnet common garnet red, but the color is very broad kind enough to cover the entire spectrum of color. Garnet Product "Garnet" from the Latin "granatus" ("grain", i.e. grain), may be green silicon carbide‍  provided by "Punica granatum" ("pomegranate", i.e., pomegranate) from [3], which is a red plant seeds the shape, size and color are similar portion garnet crystal. 

Garnet common response to Glass beads‍  its chemical composition and confirmed into six types [4], respectively, red garnet (Pyrope), almandine (Almandine), manganese aluminum garnet (Spessartite), andradite (Andradite) calcium aluminum garnet (Grossular, variants have tsavorite (tsavorite) and cinnamon Stone (hessonite)) and uvarovite (Uvarovite). Garnet form two solid solution series: a red garnet - almandine - spessartine and 2 uvarovite - grossular - andradite.

waterjet abrasives Mechanism of action of fiber reinforced concrete

Mechanism of action of fiber reinforced concrete 

According to theoretical and experimental results at home and abroad, compared with ordinary concrete, mechanical properties of steel fiber reinforced concrete significantly improved tensile strength and can be increased by about 2-fold, bending strength is 2.5-3.5 times that of ordinary concrete Fused zirconia mullite‍  flexural strength, improve the impact strength is more obvious, generally up to 5 times more than ordinary concrete, and even up to 20 times. 

Currently, the mechanism of steel fiber reinforced concrete, there are two different interpretations. One is the fiber spacing mechanism proposed by the United States Rmuald; One is composite mechanism brown fused aluminum oxide‍ England Swamy, Manga and others made. Here we analyze the main fiber spacing mechanism. 

Fiber spacing mechanism is based on the basis of linear elastic fracture mechanics description of a constraint fiber up to the occurrence and development of cracks. mold for grinding wheel‍ The mechanism that in the concrete originally flawed, desire to improve the strength of this material, it must be possible to reduce the level of defects, improve toughness and reduce stress concentration factor inside the crack tip.

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CBN abrasive grit Refractoriness

Refractoriness is the material reaches a certain degree of softening temperature under high temperature, high temperature performance characterization of the material to resist. 

Significance of refractoriness and different CBN abrasive grit‍  melting points indicated. The crystalline melting point of the liquid to the solid phase at body temperature equilibrium. Refractoriness multiphase body reaches a certain degree of softening temperature. The vast majority of ordinary refractories, for both the multiphase heterogeneous materials, without necessarily melting point, it began to appear liquid to completely melt is a gradual process, in a fairly wide temperature range, solid-liquid phase coexistence. Gu Yu Characterization softening and melting characteristics of this material at high temperature can be measured in refractoriness. 

Refractory material is not a specific absolute quantities, the material is measured under specified test conditions to achieve the particular degree of softening of the relative time specification. The test mold for grinding wheel‍ material made according to the method prescribed truncated triangular pyramid (referred to as test cone), and has a fixed bend down at a specific temperature, heating rate standard temperature truncated triangular cone (referred to as standard cone) of servers in a given heating rate and a certain heating under atmospheric conditions, in order to test the degree of bending down cone with a standard cone bend down quite a contrast method for determining the degree of refractoriness. Under the sea bottom truncated cones, long 8mm, on the sea bottom 2mm, height 30mm. When measured, the cone angle may be in the liquid phase at elevated temperatures. With increasing temperature, increasing the amount of liquid, the liquid viscosity is reduced, the cone softened. When softened to a certain extent, the effect of its own weight cone gradually bend down. When synthetic diamond‍ tested with a standard taper cone while bending down until its apex in contact with the chassis, then this standard inverted cone curved determined temperature prevail, as the test cone refractoriness. Our general standard cones and cone bent down to WZ temperature tenth bid. If the test standard taper cone and WZ171 No. bend down simultaneously, the refractoriness of the sample is 1710 ℃. Many other countries Seck cone (SK) as a standard cone, specific measurement method is slightly different. 

alluvial garnet gbrasives fiber reinforced concrete

Ordinary concrete with high compressive strength, but the tensile strength, toughness and crack resistance are poor. In general the amount of concrete mixed with steel fiber  steel fiber for concrete   concrete preparation called steel fiber reinforced concrete. Tensile strength, crack, toughness and compressive strength, flexural strength, flexural strength of steel fiber concrete would have greatly improved. As a new type of steel fiber reinforced concrete concrete, has its unique advantages and performance.

Production of steel fiber reinforced concrete, the main question is how effective the fiber material is uniformly dispersed in the concrete, the fibers into mold for grinding wheel a group or just avoid dense knot. This has the feeding order a lot of concrete, aggregate and should generally be the first fine aggregate dry mix, then add the fibrous material has been evacuated by adding cement and stir in the water. If the cement and water join prematurely,Fused zirconia mullite  the fibers absorb water, under water adsorption force between the surface tension and fiber, combined with bonding of the cement, steel fiber agglomerate into groups, directly affect the uniformity of steel fiber reinforced concrete, this will greatly reduce the performance of steel fiber reinforced concrete.

alluvial garnet gbrasives Steel fiber reinforced concrete

Ordinary concrete with high compressive strength, but the tensile strength, toughness and crack resistance are poor. In general the amount of concrete mixed with steel fiber concrete preparation called steel fiber reinforced concrete. Tensile strength, crack, toughness and compressive strength, flexural strength, flexural strength of steel fiber concrete would have greatly improved. As a new type of steel fiber reinforced concrete concrete, has its unique advantages and performance.

Production of steel fiber reinforced concrete, the main question is how effective the fiber material is uniformly dispersed in the concrete, the fibers into a group or just avoid dense knot. This has the feeding order a lot of concrete, aggregate and should generally be the first fine aggregate dry mix, then add the fibrous material has been evacuated by adding cement and stir in the water. If the cement and water join prematurely, the fibers absorb water, under water adsorption force between the surface tension and fiber, combined with bonding of the cement, steel fiber agglomerate into groups, directly affect the uniformity of steel fiber reinforced concrete, this will greatly reduce the performance of steel fiber reinforced concrete.                                  

alluvial garnet gbrasives Mechanism of action of fiber reinforced concrete

Mechanism of action of fiber reinforced concrete
According to theoretical and experimental results at home and abroad, compared with ordinary concrete, mechanical properties of steel fiber reinforced concrete significantly CBN abrasive grit improved tensile strength and can be increased by about 2-fold, bending strength is 2.5-3.5 times that of ordinary concrete flexural strength, improve the impact strength is more obvious, generally up to 5 times more than ordinary concrete, and even up to 20 times.
Currently, the mechanism of steel fiber reinforced concrete, there are two different interpretations. One is the fiber spacing mechanism proposed by the Glass beads  United States Rmuald; One is composite mechanism England Swamy, Manga and others made. Here we analyze the main fiber spacing mechanism.
Fiber spacing mechanism is based on the basis of linear elastic fracture mechanics description of a constraint fiber up to the occurrence and development of cracks. The mechanism that synthetic diamond in the concrete originally flawed, desire to improve the strength of this material, it must be possible to reduce the level of defects, improve toughness and reduce stress concentration factor inside the crack tip.

CBN abrasive grit Meaning and effect of high temperature refractory

Meaning and effect of high temperature refractory                                                                                          Refractoriness is the material reaches a certain degree of softening temperature under high temperature, high temperature performance characterization of the material to resist.
Significance of refractoriness and different melting  brown fused aluminum oxide  points indicated. The crystalline melting point of the liquid to the solid phase at body temperature equilibrium. Refractoriness multiphase body reaches a certain degree of softening temperature. The vast majority of ordinary refractories, for both the multiphase heterogeneous materials, without necessarily melting point, it began to appear liquid to completely melt is a gradual process, in a fairly wide temperature range, solid-liquid phase coexistence. Gu Yu Characterization softening and melting characteristics of this material at high temperature can be measured in refractoriness.
Refractory material is not a specific absolute quantities, the material is measured under specified test conditions to achieve the particular degree of softening of the relative time specification. The test material made according to the method prescribed truncated triangular pyramid (referred to as test cone), and has a fixed bend down at a specific temperature, heating rate standard temperature truncated triangular cone (referred to as standard cone) of servers in a given heating rate and a certain heating under atmospheric conditions, in  Glass beads  order to test the degree of bending down cone with a standard cone bend down quite a contrast method for determining the degree of refractoriness. Under the sea bottom truncated cones, long 8mm, on the sea bottom 2mm, height 30mm. When measured, the cone angle may be in the liquid phase at elevated temperatures. With increasing temperature, increasing the amount of liquid, the liquid viscosity is reduced, the cone softened. When softened to a certain extent, the effect of its own weight cone gradually bend down. When tested with a standard taper cone while bending down until its apex in contact with the chassis, then this standard inverted cone curved determined temperature prevail, as the test cone refractoriness. Our general  steel fiber for concrete  standard cones and cone bent down to WZ temperature tenth bid. If the test standard taper cone and WZ171 No. bend down simultaneously, the refractoriness of the sample is 1710 ℃. Many other countries Seck cone (SK) as a standard cone, specific measurement method is slightly different.
[1] refractoriness refractory is an important technology assessment indicators. However, not as a product temperature limit. Polycrystalline refractory material composed of a single phase, which is generally lower than the melting point of the crystal refractoriness. However, some refractory material, such as when high viscosity liquid form, which can be higher than the melting point of refractoriness.

Mullite brick features

Refractoriness higher, up to 1790 ℃ or more. RUL starting temperature 1600 ~ 1700 ℃. Cold crushing strength 70 ~ 260MPa. Good thermal shock resistance. Sintered mullite bricks and fused mullite brick two kinds. Sintered mullite brick high bauxite as main raw material, adding a small amount of clay or raw bauxite as binder, after molding, firing and made. Fused Glass beads mullite brick high bauxite, alumina and fireclay as industrial raw material, fine-grained charcoal or coke as a reducing agent, to produce fused after forming method using the restore. Fused mullite sintered mullite crystallization than big, good thermal shock resistance than sintered products. Their performance depends on the content of the high temperature alumina brown fused aluminum oxide and mullite phase uniformity of the glass. Mainly for roof stove, blast furnace body and bottom, glass melting furnace regenerators, ceramic sintering furnace, petroleum cracking system dead lining and so on.

Principle of abrasive blasting

Sandblasting is powered by compressed air, to form the appearance of high-speed jet beam will spray material (copper sand, quartz sand, silicon carbide, iron ore, Hainan sand) high-speed jet to the surface to be processed, so that the outer surface of the workpiece surface or shape changes due to impact and abrasive cutting action on the workpiece steel fiber for concrete steel fiber for concrete  surface, the surface of the workpiece to obtain a different cleanliness and roughness, so that the mechanical properties of the surface is improved, thereby improving the fatigue resistance of the workpiece, increasing the it and the adhesion between the coating to extend the durability of the coating, but also conducive to peace and decorative paint flow