1206 results about "Abrasive blasting" patented technology

This invention provides a golf club head processing method of performing blast processing on a face surface on which a scoreline is formed. The processing method according to this invention includes the steps of filling the scoreline with a masking material before the blast processing, and removing the masking material from the scoreline after the blast processing.

A method of reducing the amount of particulates generated from the surface of a processing component used during plasma enhanced chemical vapor deposition of thin films. The body of the processing component comprises an aluminum alloy, and an exterior surface of said processing component is texturized to increase the amount of surface area present on the exterior surface. The texturizing process includes at least one step in which the surface to be texturized is bead blasted or chemically grained, so that the surface roughness of the texturized surface ranges from about 50 μ-inch Ra to about 1,000 μ-inch Ra.

The invention provides a processing technique of a cellphone shell with metal luster. The processing technique includes the steps of S1, performing compression molding; S2, performing stamping; S3, performing primary CNC (computer numerical control) machining; S4, performing T treatment; S5, performing injection molding in a nano mold; S6, performing secondary CNC machining; S7, performing surface treatment, to be specific, performing a, polishing, b, shot-blasting, c, degreasing, d, washing, e, electrolytic polishing, f, washing, g, silicon removal aiming to decrease silicon content of the polished surface of the cellphone shell, h, neutralizing, i, chemical polishing, and j, electrophoresis or combination of anodic oxidation and coloring, aiming to impart metal luster to the polished surface of the cellphone shell. The compete cellphone shell is made through the steps S1 to S6, the silicon content of the polished surface of the cellphone shell is processed, the cellphone shell never produces compounds of intervals such as Al-Mg-Si-Fe during following anodic oxidation, defects such as oxide film darkening, bluing or milky-whiting are avoided, and the metal-lustered cellphone shell is manufactured through the complete process.

A computer simulation and virtual reality system simulates the use of a blasting nozzle to remove one or more coatings and / or rust from a virtual surface. The user operates an electronic controller in the form of a blasting nozzle that outputs a signal indicating whether the blasting nozzle controller is in an “on” position or in an “off” position. The system also has a motion tracking system that tracks the position and orientation of the blasting nozzle controller with respect to the virtual surface defined on the display screen. Simulation software in a computer generates virtual blast pattern data, and the removal of the virtual coating(s) and / or rust image from the virtual surface is displayed in real time on the display screen.

An object of the present invention is to provide a quartz glass jig, which, when employed in a processing apparatus using plasma, is less in generation of abnormal etching and particles and low in contamination with impurities. This object is obtained by a quartz glass jig for a processing apparatus using plasma, wherein a surface of the jig is subjected to grinding or a sandblast processing and has a surface roughness Ra in the range of from 2 μm to 0.05 μm, and microcracks of grinding marks formed during the grinding or sandblast processing have a depth of 50 μm or less.

There is provided an Al2O3-TiN coated cemented carbide insert intended for turning of steels and especially Ca-treated steels. The alumina layer is protected by an extra thick and multilayered coating of TiN. The TiN coating is wet blasted and, for this purpose, (Ti,Al)(C,O,N) bonded to the underlying Al2O3 layer which preferably consists of alpha -Al2O3. The extra tough behavior together with increased wear resistance can be obtained by optimizing the TiN layer thickness, structure and adhesion and wet blasting the said TiN coating. This invention is characterized by the fact that the coating layers are not missing at the cutting edge of the insert.

An apparatus and processes for large scale inline manufacturing of CdTe photovoltaic modules in which all steps, including rapid substrate heating, deposition of CdS, deposition of CdTe, CdCl2 treatment, and ohmic contact formation, are performed within a single vacuum boundary at modest vacuum pressures. A p+ ohmic contact region is formed by subliming a metal salt onto the CdTe layer. A back electrode is formed by way of a low cost spray process, and module scribing is performed by means of abrasive blasting or mechanical brushing through a mask. The vacuum process apparatus facilitates selective heating of substrates and films, exposure of substrates and films to vapor with minimal vapor leakage, deposition of thin films onto a substrate, and stripping thin films from a substrate. A substrate transport apparatus permits the movement of substrates into and out of vacuum during the thin film deposition processes, while preventing the collection of coatings on the substrate transport apparatus itself.

A shot-blasting installation (1) for blasting work pieces (30) made from light metal alloys, comprising at least one blasting chamber (3) for receiving the work pieces that are to be blasted, at least two blasting wheels (6) arranged in walls of the blasting chamber for introducing a blasting agent into the blasting chamber, and a separator (8) for separating the mixture of blasting agent and material that has been removed by blasting, wherein the separator (8) is arranged directly beneath the blasting chamber (3), and wherein a manipulator (10) for handling the cast work piece (30) during blasting is arranged in the blasting chamber (3).

Provided is a coating layer for cutting tools, as a hard coating layer stacked and formed in the sequence of a TiN layer, a TiCN layer, a bonding layer, an alumina (Al2O3) layer, and a cover layer from the bottom by using a chemical vapor deposition (CVD) method on a parent material, able to improve cutting performance, because surface residual stress of the coating layer may be maintained in a compressive stress state by adjusting a composition of the cover layer without using a separate additional process, such as a blasting operation, or a mixed process of CVD and physical vapor deposition (PVD), and simultaneously the cover layer may also be used as a wear-resistant layer.The coating layer according to present invention is formed on a surface of a parent material by using a CVD method, in which the coating layer includes an alumina layer formed of an α-phase, disposed on the parent material and composed of a composite structure having a columnar crystal structure and an equiaxed crystal structure mixed therein, and a cover layer formed of AlxTiySizCrwN (herein, x+y+z+w=1, x≧0.75, y≧0.2, 0≦z≦0.06, 0≦w≦0.08) and disposed on the alumina layer.

A blasting nozzle for a blasting apparatus includes an inlet for attachment to the outlet hose of the blasting apparatus, an accelerating portion, and an outlet portion through which an accelerated abrasive-laden jet can be ejected. The outlet portion has an interior surface that flares outwards to define a single outlet orifice but that also defines a transverse cross-section profile having at least two lobes between which is at least one splitter element. In use, the abrasive within the jet is directed by the splitter element into one or other of the two lobes within the single egressing jet. The overall effect is such that the abrasive distribution transversely across the jet is much more even than in a conventional blasting nozzle.

A CVD-coated cutting tool insert with a TiCxNy-layer with a low tensile stress level of 10-300 MPa and an α-Al2O3-layer with a high surface smoothness of <0.1 μm as measured by AFM-technique is disclosed. This is obtained by subjecting the coating to a first intensive wet blasting operation with a slurry of F80 grits of Al2O3 followed by a second wet blasting treatment with a slurry of F320 grits of Al2O3.

The invention discloses a method for removing scales on the surface of a hot-rolled stainless steel strip. The method comprises the following steps of: performing abrasive blasting treatment on the hot-rolled stainless steel strip to be treated, wherein the abrasive blasting treatment refers to spraying of mixed slurry of water and an abrasive material, and the percent by volume of the abrasive material in the slurry is 30%-40%; after the abrasive blasting treatment, performing primary grinding and scrubbing on the steel strip; after the primary grinding and scrubbing, performing acid-washing on the steel strip with diluted sulphuric acid; cleaning the steel strip subjected to acid-washing by the diluted sulphuric acid by water, and then performing secondary grinding and scrubbing on the steel strip; after the secondary grinding and scrubbing on the steel strip, performing acid-washing on the steel strip with mixed acid of nitric acid and hydrofluoric acid; and after the acid-washing with the mixed acid, cleaning the steel strip with water, then performing third grinding and scrubbing on the steel strip, and finally, washing the steel strip with water. With the slurry spraying technique, as the abrasive material is mixed with the water, the scales on the surface of the hot-rolled stainless steel strip can be removed more effectively; and the consumption quantity of acid in subsequent steps is greatly reduced.

A method for surface treating a golf club head, includes: (a) forming a depression unit in the golf club head, the depression unit being indented inwardly from an outer surface of the golf club head, the outer surface being divided into a working area and a non-working area, the depression unit being formed in the working area; (b) filling the depression unit with a shielding material and covering the non-working area with a covering material; and (c) sandblasting the golf club head after step (b) and removing subsequently the shielding material from the depression unit and the covering material from the non-working area so as to form the working area into sandblasted and non-sandblasted regions that differ in gloss intensity.

A reaction chamber assembly for thin film deposition processes or the like includes an outer wall assembly for enclosing an outer volume and a removable liner installed into the outer volume through an outer aperture for preventing precursors or reactants from coming into contact with internal surfaces of the outer wall assembly and forming thin film layers thereon. The removable liner encloses a reaction chamber and includes substrate support trays or the like for supporting substrates being coated. Thin film layers are formed onto internal surfaces of the removable liner instead of onto surfaces of the outer wall assembly. The removable liner may be disposable or may comprise stainless steel, which can be removed when contaminated, cleaned by abrasive blasting such as bead blasting, and replaced. Two removable liners can be used to periodically swap removable liners and clean one of the liners while the other is in service with minimal disruption to production coating schedules. Other removable cleanable elements such as input and output plenums, door liners and conduits comprising stainless steel can be periodically removed and cleaned by abrasive blasting.

The invention discloses a method for processing the surface of an attachment-resisting plate. The method comprises the following steps: providing an attachment-resisting plate with a smooth surface; patterning the attachment-resisting surface of the attachment-resisting plate with a smooth surface to form an uneven attachment-resisting surface; blasting the attachment-resisting surface; and meltallizing the attachment-resisting surface after blasting. The smooth surface of the attachment-resisting plate is subject to the patterning, the blasting and the meltallizing so that the surface of theattachment-resisting plate has corrosion resistance, rust prevention, abrasion resistance, lubrication, roughness, adsorption, insulation, heat insulation and other properties; the attachment-resisting surface of the attachment-resisting plate achieves even roughness; and the attachment-resisting plate can easily absorb target atoms or large-sized particles so that the target atoms or large-sizedparticles do not fall on a substrate, thereby increasing the sediment capability of the attachment-resisting plate, improving the cleanness of the inner wall of a sputtering machine, improving the filming rate of sputtering and prolonging the service life of the attachment-resisting plate.

An integrative method for a packer to pack off a multi-layer hydraulic sand-spraying perforation and pressure fracture is used in the multi-layer perforation and the pressure fracture of a well of well completion of a petroleum casing. A pipe column comprises an oil pipe, a safety joint, a hydraulic ejector, a K34 or a Y34 packer, a uniflow valve, a sieve vessel and an end cap, wherein, the lower layer of a hydraulic ejector position requires perforation depth. With the completion of perforation, the hydraulic sand-spraying fractures the lower layer by actively circulating the lower layer of the hydraulic sand-spraying perforation. When the hydraulic sand-spraying pressure fracture for the lower layer is completed, a reverse circulation surge tank is processed and the pipe column is leveled up and dragged to the upper layer of perforation pressure fracture to continue to fracture the upper layer by hydraulic sand-spraying perforation. After completion, the pipe column is lifted to be put into the well-completion pipe column to discharge liquid and finish production. The perforation is not required by each layer because only an oil pipe needs to be dragged to finish the multiple fracturing of multiple layers of the well. The integrative method integrating the perforation, the fracture and the packing-off together is new stimulation treatment technology. In addition, the fracture is reliable, construction is easy and convenient and period is short.

A method and apparatus are disclosed for selective removal of a conformal coating from the solder balls of grid array packages such that the benefits of the coating are realized. An ancillary benefit of the invention is improved process-ability of the grid array package by improving the mechanical containment of the solder during the reflow process and improved electrical isolation between the individual solder attachment points. For example, a method for coating a ball grid array is provided, which includes coating the ball grid array with a thin layer of parylene. Next, the solder ball side of the part is butter smeared or squeegeed with a water soluble coating and assembled wet. A mask having holes in the same pattern as the balls in the grid, and a thickness that is about 80% of the height of the balls, is applied to the solder ball side of the part. This side of the part is then butter smeared again with the water soluble coating, and the entire assembly is allowed to dry. At this point, about 20% of each parylene-coated solder ball protrudes higher than the surface of the mask. The solder ball side of the part is then grit blasted with an abrasive material. The extent that the abrasive material removes the parylene coating from the solder balls is limited by the mask and the layer of water soluble coating. Therefore, the grit blasting removes the parylene coating from only the protruding areas (e.g., about top 20%) of the solder balls. Water is then used to remove the water soluble coating, and the parylene coated part is baked to remove moisture. Thus, a parylene coated ball grid array (or column grid array) is provided that is highly impervious to moisture, has a very high dielectric strength, and thereby improves the electrical performance and reliability of the surface mounted part.

Blast-cleaning systems are disclosed, which enable a single system to handle different classes of particulate blasting media, such as grit, powder, and dry ice, and to deliver controllable mixtures of different media types during a blasting operation. This “multi-media” system includes a hopper having two chambers or other supply assemblies that are isolated from each other, for holding two different types of blasting media. Both chambers provide their particulates to a metering control device, which supplies a compressor. For example, by combining grit with dry ice, extremely efficient cleaning can be accomplished, with greatly reduced production of solid waste. Tests have shown that combinations of dry ice (at roughly 90%) with a grit or powder can provide far greater cleaning efficiency than either media type by itself.

The present invention relates to a device in the technical field of material processing, in particular to a peener which carries out the surface deformation strengthening process on magnesium alloy samples. The present invention comprises a main peening system, an upper whirlwind separation system, a dedusting system, an air compression system and an electric system, wherein, the upper whirlwind separation system is positioned on the upper end of the main peening system, the lower part of the upper whirlwind separation system is communicated with the main peening system, the upper part is connected with the dedusting system, which is positioned outside the main peening system, the air inlets of both the dedusting system and the main peening system are connected with the air compression system, and the electric system is connected with the main peening system, the upper whirlwind separation system, the dedusting system and the air compression system. The present invention can conveniently assemble and disassemble the samples of the shaft class, the range of the generated peening strenghth is wide, the effect and uniformity of peening is good, and moreover, pollution can be prevented.

The present invention provides a sponge blasting apparatus comprising: a recovering unit which sucks and recovers a blasting medium jetted out of a nozzle; a sorting unit which sorts the blasting medium sucked and recovered by the recovering unit into a reusable blasting medium and an unreusable blasting medium; a blower which gives a sucking force to the recovering unit via the sorting unit; a dust collector which removes dust from an exhaust air discharged from the sorting unit with a sucking force of the blower; a picking-apart unit which picks apart the reusable blasting medium sorted by the sorting unit; a continuous feeder which, having at least two reservoir tanks into which the reusable blasting medium picked apart by the picking-apart unit is inputted, changes over the two tanks between each other to continuously feed the nozzle with the blasting medium deposited in the tanks; and a carrier which carries to the continuous feeder the reusable blasting medium sorted by the sorting unit.

A system and method for managing abrasive blasting may include timing duration of blast media being blown in performing abrasive blasting using an abrasive blasting machine. Time duration that an operator worked in association with the duration of the blast media being blown may be received. A blasting efficiency ratio may be computed based on the duration of the blasting media being blown and duration of that the operator worked. The blasting efficiency ratio may be displayed to a user.

The invention discloses a laser cladding method of a composite coating containing spherical tungsten carbide, which is characterized by comprising the following steps of: cleaning a metal to be clad by using acetone to remove oil, and blasting sand onto the metal to coarsen the metal; presetting composite powder containing 5 to 50 percent of 0.5 to 2.0 millimeter spherical tungsten carbide and 50 to 95 percent of an iron or nickel based self-fluxing alloy on the surface of the metal; and performing the laser cladding of the metal by using a CO2 laser. In the laser cladding method of the invention, the spherical form of the tungsten carbide composite coating is unchanged, the wear resistance of the cladding is high, defects such as cracks and air holes are avoided, the production working procedures are simple and the working efficiency is high. The method is suitable to be used for metal surface treatment.

The invention discloses graphene inorganic paint and a use method thereof. The graphene inorganic paint solves the problem that the existing inorganic paint has poor adhesion to a metal surface. The graphene inorganic paint is prepared by modifying inorganic paint by graphene, wherein a use amount of graphene is 0.001% to 5% of that of the inorganic paint. The graphene inorganic paint can greatly improve inorganic paint adhesion to the metal surface so that the surface adhesion effect of the graphene inorganic paint is the same as surface adhesion effect improved by metal surface abrasive blasting or corrosion roughening. The graphene inorganic paint avoids metal surface abrasive blasting or corrosion roughening thereby greatly reducing construction difficulty.

A steel tube with a high stretch, heat resistance, anti-corrosion, anti-abrasion Nami compound material coating layer production technique is provided, which comprises: use emery to proceed spraying seed on the inner and outer surface of the steel tube to remove the iron dust erosion product of the inner and outer wall of the steel tube; use compressed air to blow off the floating sand and dust which passes through the inner surface of the steel tube, then preheat in a preheat furnace to remove water and moist on the inner wall of the tube; proceed titanium alloy compound material spray finishing to the inner surface of the steel tube after preheating to form a coating layer; make the steel tube after spray finishing rotate with the tube axle and the coating layer level evenly and the surface of the tube is smooth and neat; then make the coating layer solid completely to get finished steel tube; the titanium alloy compound material is composed of several kinds titanium alloy Nami powder as active addition agent, optimized resin and addition agent, the steel tube with the coating layer can be used as oil well flow string or water inlet to meet the requirements under the working condition of 2000m to 5000m deep well, which has long service life and be used for saving a large amount of steel material and reducing production cost.

Provided is a method of treating a surface of a mold to achieve good demoldability and capable of preventing wearing of the mold by avoiding load concentration on one part of the surface of the mold. After a first blasting is performed on the surface of the mold to remove a hardened layer produced on the surface and / or to adjust the surface roughness, a second blasting is performed to create fine irregularities on the surface. Then, an elastic abrasive in which abrasive grains are carried on an elastic body, or a plate-like abrasive having a planar shape with a maximum length that is 1.5 to 100 times the thickness thereof, is ejected onto the surface of the mold at an inclined ejection angle such that the abrasive is caused to slide along the mold surface to flatten peaks of the irregularities created on the mold surface.

The invention belongs to the field of metal material and relates to a method for surface treatment of a titanium electrode substrate. The service life and the electrocatalysis performance of the titanium electrode are greatly increased by the abrasive blasting pretreatment to the substrate. The abrasive blasting treatment is carried out on the titanium substrate; the nozzle pressure of an abrasive blasting machine is 0.3-0.5MPa; the Al2O3 grinding medium of 70-90 meshes is adopted; the blasting angle is 45-90 degrees; the distance from the nozzle to a workpiece is 1-2cm; the coarsening time is 15-30s; the titanium substrate is then pickled for pickling treatment in a 10wt.% of oxalic acid solution for 1.5-2.5 hours at the temperature of 90-95 DEG C; a Ti / IrO2.Ta2O5 oxide coating electrode is prepared on the obtained substrate by a thermal decomposition method, wherein the Ir is chloro-iridic acid, Ta is tantalum pentachloride and the molar ratio of Ir to Ta is 7:3; a coating solution is uniformly coated on the pre-treated titanium substrate by a soft hair brush; the titanium substrate is dried for 10min at the temperature of 120 DEG C, is subsequently arranged in a box-type resistance furnace and sintered for 10min at the temperature of 450 DEG C; the above operations of coating, drying and sintering are repeatedly carried out by 5-20 times; and the final sintering is carried out for 1h at the temperature of 450 DEG C. The method provides optimum pretreatment parameters, greatly prolongs the service life of the titanium electrode, effectively improves the electrocatalytic activity and greatly reduces the running and repairing cost for the electrode.

The invention discloses a metal thermal spraying and powder coating electrostatic spraying composite coating anti-corrosion technology, which includes the following procedures: after a steel and iron work piece is deoiled, dried and pre-treated, the surface sand spraying treatment is conducted, with the rough degree of up to Ry40 to 100Mu m; the metal thermal spraying is conducted within 4 hours; after the thickness of a metal layer reaches 40 to 120Mu m, the powder coating electrostatic spraying is conducted, to make the thickness of a powder layer reach 60 to 120Mu m; and then the material is sent into a drying box for heating and solidification, so that the total thickness of the composite coating reaches 100 to 240Mu m. The composite coating treated by the technology has less thickness and stronger anti-corrosion than those of common coating, and is characterized by water resistance, impact resistance, weather resistance, long-lasting protection, long anti-corrosive service life, smooth appearance, environmental protection, cleanness, etc.

The invention provides an ultraviolet curing anti-sandblasting shielding protection printing ink, by taking total weight of a printing ink composition as a reference, the ultraviolet curing anti-sandblasting shielding protection printing ink comprises the following components by weight percentage: 50-70% of low polymer, 0.5-15% of active monomer, 3-8 parts of initiator and 15-30% of filling material; wherein the low polymer is one or two selected from aliphatic polyurethane acrylate and acid anhydride-modified epoxy acrylate. The ultraviolet curing anti-sandblasting shielding protection printing ink has the advantages of fast solidification speed, better adhesive force, CNC resistance, scratch resistance, immersion resistance by various cutting fluids, sandblasting resistance, easy stripping, no residues after film-stripping, and no base material corrosion; is suitable for metal base material and plastic cement base material, and is especially suitable for a metal and plastic cement-embedded composite base material.