1551results about How to "Eliminate internal stress" patented technology

Disclosed is a 600HB-grade wear resistant steel plate, comprising, by weight, 0.41 to 0.50% of C, 0.10 to 0.60% of Si, 0.20 to 1.20% of Mn, no more than 0.050% of P, no more than 0.030% of S, 0.01 to 1.50% of Cr, 0.01 to 1.00% of Mo, 0.01 to 1.50% of Ni, 0.001 to 0.10% of Ti, 0.001 to 0.10% of Al, 0.001 to 0.10% of RE, 0.01 to 1.00% of W, 0.0005 to 0.0040% of B, 0.001 to 0.010% of Ca, the balance Fe and unavoidable impurities. The 600HB-grade wear resistant steel plate provided in the invention has high hardness (no less than 600HB), good toughness and plasticity, high abrasion resistance and excellent processability and weldability; the microstructure is martensite or martensite and retained austenite. Therefore, the 600HB-grade wear resistant steel plate is extremely suitable for being used in high abrasion environment, especially for being used in vehicles or equipment which contact with such materials of high hardness as high strength ores, for example, a bucket, or the compartment of an electric wheel self-discharging truck for mining, etc.

The invention provides an Al-Fe-Ba-RE aluminum alloy, and a preparation method of the Al-Fe-Ba-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Tl-RE aluminum alloy, and a preparation method of the Al-Fe-Tl-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Bi-RE aluminum alloy, and a preparation method of the Al-Fe-Bi-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Ni-RE aluminum alloy, and a preparation method of the Al-Fe-Ni-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Ta-RE aluminum alloy, and a preparation method of the Al-Fe-Ta-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-W-RE aluminum alloy, and a preparation method of the Al-Fe-W-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention relates to a process for manufacturing the molybdenum based rare earth alloy plate and equipment for manufacturing the same, wherein pure molybdenum powder is simultaneously added with four rare earth oxides of ZrO2, Y2O3, La2O3 and Nd2O3 according to certain ratio, by utilizing the chrematistics of long and large crystal grain and strong sag resistance and anti-creep property of rare earth alloy elements and the dispersion strengthening function, the re-crystallization temperature of the metal molybdenum is increased, the mechanical performances of the molybdenum based material such as tensile property, yielding behavior and extensibility are improved, and the application range of the molybdenum based material is widened; and the manufacturing process comprises production procedures of material preparation treatment, mixing treatment, forming treatment, sintering treatment, material making treatment and the like and the setting of various technical parameters of special technical equipment and process. With the preparation process, the molybdenum based rare earth alloy plate which has the advantages of good electric conductivity and heat conductivity, excellent high-temperature resistance and corrosion resistance and better mechanical performances such as tensile property, yielding behavior and extensibility, and fills in domestic blank and can replace the imported material can be manufactured.

The invention relates to a manufacturing method of a hot bent 3D (Three Dimensional) glass white sheet. The manufacturing method comprises the following steps: (1) cutting a material: cutting a glass white sheet material into a plurality of small glass white sheets with proper sizes; (2) finely engraving: putting the small glass white sheets into a CNC (Computer Numerical Control) fine engraving machine, and punching and grinding edges; (3) cleaning: carrying out cleaning treatment on the glass white sheet by utilizing a glass cleaning machine; (4) carrying out ultrasonic treatment: washing surface residual waste dreg on the surface of the glass white sheet by utilizing an ultrasonic washing machine; (5) hot bending: putting the glass white sheet into a hot bending mold and hotly bending, machining and molding the glass white sheet into a 3D curve surface; (6) tempering: putting the hotly bent glass white sheet into a tempering frame; conveying the tempering frame into a tempering furnace and raising the temperature to 380 DEG C-420 DEG C, wherein the heating time is 4h-8h and the hardness reaches 7H; (7) carrying out plasma spraying: putting the glass white sheet into a fingerprint oil spraying machine and spraying fingerprint oil on a surface through plasmas; baking at a temperature of 140 DEG C-160 DEG C for 25-30 minutes until the fingerprint oil is dried; (8) fitting: fitting release films on upper and lower surfaces of the glass white sheet; and (9) packaging.

The invention provides a high-flexibility wear-resistant steel plate, which is characterized by comprising the following chemical components by weight percent: 0.04 to 0.11 percent of C, 0.10 to 0.50 percent of Si, 0.50 to 1.50 percent of Mn, less than 0.015 percent of P, less than 0.010 percent of S, 0 to 0.60 percent of Cr, 0 to 0.50 percent of Mo, 0 to 0.80 percent of Ni, 0 to 0.050 perent of Nb, 0.005 to 0.0040 percent of B, 0.010 to 0.060 percent of Al and 0.005 to 0.060 percent of Ti, and the surplus is Fe and inevitable foreign matters; and the content of Si, Mn and Cr satisfies that: Si+Mn+Cr is less than or equal to 2.4 percent and more than or equal to 1.30 percent; and the content of Mo, Ni and Nb satisfies that: Mo+Ni+Nb is less than or equal to 1.10 percent more than or equal to 0.10 percent. The hardness of the high-flexibility wear-resistant steel plate is more than 350 HB, the longitudinal impact power is more than 100J at the temperature of minus 40 DEG C, the micro-structure is of bainite or martensite, and the welding performance is excellent. The wear-resistant steel plate has simple and easy production technology and excellent low-temperature flexibility and welding performance.

The invention discloses a wafer level chip size package and a manufacturing method of the wafer level chip size package, belonging to the field of sensors. The wafer level chip size package comprises a wafer, wherein the positive surface of the wafer is a first surface which forms an image sensing region, the negative surface of the wafer is a second surface, and the first surface comprises a microlens, a metal interconnection layer and an optical interaction region from top to bottom; a silicon through hole which does not penetrate through a silicon substrate and a redistribution region are manufactured on the first surface, and I/Os at the periphery of the optical interaction region are connected with the silicon through hole; the wall of the silicon through hole is manufactured into a passivation layer and is filled; a polymer material is manufactured into a second protective layer on the redistribution region; the first surface is in bonding with a glass sheet, and a cavity is formed between the glass sheet and the wafer; the second surface is thinned and forms a groove structure through an etching process, and the silicon through hole is exposed; a line layer is manufactured on the second surface, and the silicon through hole is connected to a solder pad cushion; a welding prevention layer is manufactured on the line layer, and the solder pad cushion is exposed; and a solder ball is arranged on the solder pad cushion. With the adoption of the wafer level chip size package and the manufacturing method of the wafer level chip size package, the technological process is reduced, the reliability and the production efficiency of a product are improved, and the production cost is lowered.

The invention provides a fireflooding channeling sealing agent and its preparation method. Raw materials for preparing the fireflooding channeling sealing agent contain, by weight, 0.5-3% of a melamine substance, 0.2-1% of phenol, 2-8% of aldehyde, 0.5-2% of a pH regulator, 0.2-1.2% of a nano-alumina oleoresin liquid XZ-LY102, 10-20% of ultrafine silicon dioxide and the rest of water. Sealing rate of the fireflooding channeling sealing agent can reach 93%; temperature resistance reaches 300 DEG C; the highest salinity tolerance reaches 150,000 mg/L; expriation data can reach 6 months and above under the steam condition of 300 DEG C; viscosity of a profile control agent before gel forming is 150-1,500 mPa.S; sealing strength can reach 31 MPa/m; and gel forming time can be controlled within 12-36h. By the use of the fireflooding channeling sealing agent, deep profile control of an oil layer can be realized.

The invention provides an electroplated diamond bur and a manufacturing method thereof. The electroplated diamond bur comprises a pure nickel base plated layer plated on a bur substrate, a sand plated layer plated on an alloy on the pure nickel base plated layer and a nano-diamond composite thickening plated layer plated on the sand plated layer on the alloy. The manufacturing method of the electroplated diamond bur comprises: the processing of the bur substrate, the treatment of the bur substrate and micron diamond and nanometer diamond powder before electroplating, preparation of a multi-component multi-layer composite plated layer at the head part of the bur and the heat treatment after electroplating. The electroplated diamond bur has higher hardness and wear resistance, the plated layers are difficult to wear during the using process, and the better holding force to diamond can be kept; on the one hand, the adoption of the heat treatment process after electroplating can eliminate internal pressure in the plated layers, on the other hand, the adoption of the heat treatment process can be simultaneously conductive to leading an interface between the bur substrate and the plated layer to form a diffusion layer, enhance the bonding force between the strengthening plated layer and the bur substrate, and greatly prolong the service life of the diamond bur.

The invention relates to a hot-rolled steel wire rod for a large bridge cable rope zinc-plated steel wire over the 2000 MPa level. Chemical components of the steel wire rod comprise, by weight percentage, 0.90-1.10% of C, 0.20-0.60% of Si, 0.30-0.90% of Mn, smaller than or equal to 0.010% of P, smaller than or equal to 0.005% of S, 0.10-0.40% of Cr, 0.010-0.070% of Al, 0.02-0.15% of V, smaller than or equal to 0.05% of Cu, 20-40 ppm of Ca, 20-90 ppm of N and the balance Fe and inevitable residual elements. The content of sorbite texture of the steel wire rod is larger than or equal to 95%. Thethrough ring range of the tensile strength is smaller than or equal to 70 MPa (uniformity). After the steel wire rod is subjected to drawing and zinc plating, the tensile strength of the zinc-platedsteel wire is larger than or equal to 2000 MPa, and the number of torsions is larger than or equal to 12. According to the technical flow of the steel wire rod, pretreatment of molten iron is carriedout, steel is smelted through a converter or an electric furnace, LF refining is carried out, RH degassing treatment is carried out, continuous casting of 390*510 cogged ingot is carried out, a blankis reheated, the blank is rolled, the surface of an intermediate billet is subjected to finishing, the intermediate billet is reheated, the intermediate billet is rolled, the steel wire rod is subjected to EDC water bath toughening treatment, and the steel wire rod is collected and packed.

The invention discloses a high-temperature resistance carbon fiber/epoxy resin composite material, a preparation method and use. The method comprises the steps of preimpregnation material preparation and composite material curing forming. Through introducing a kind of latent accelerating agents of fatty amine hydrofluoride, the method reduces the forming time of the composite materials in a mold, effectively improves the production efficiency, reduces the production cost, and can not shorten the storage period of the preimpregnation materials. Through the high-temperature heat treatment, the invention further improves the crosslink density of the resin, and is favorable for improving the vitrification conversion temperature of the composite materials, and at the same time, the high-temperature heat treatment can effectively eliminate the inner stress produced by fast curing. The prepared composite material has good mechanical property and abrasion resistance performance, the vitrification conversion temperature of the composite material is between 190 and 210 DEG C, and the 180 DEG C high-temperature environment resistance requirements can be met.

An annealing process of producing SPCC steel in annealing furnace on galvanizing line belongs to the field of the heat treatment technology of metal. Using the process can also meet the strength and plasticity requirement of strip steel on continuous annealing line. The method comprises the following procedures: the steel is heated to 630 minus or plus 20 DEG C by open fire; the steel is heated to 760 minus or plus 20 DEG C by a radiant tube; dew point is controlled below minus 40 DEG C; the steel is maintained at 710 minus or plus 20 DEG C by radiant tube; dew point is controlled below minus 40 DEG C; the strip steel is sprayed to 210 minus or plus 20 DEG C, the dew point of the first area of the spray section is controlled below minus 60 DEG C; and is cooled to 160 minus or plus 20 DEG C. The method can be used on the annealing furnace of the galvanizing line and be suitable for annealing of SPCC steel. The method can eliminate the internal stress of the rolling processing of strip steel, promote the plasticity and the toughness of the strip steel, and meet the strength and the plasticity requirement of the strip steel on the continuous annealing line. The tensile strength of product is approximately at 380Megapascal, the yield strength is below 330Megapascal, and the elongation is more than 36 percent. The grain size of product stabilizes between 11 and 13 Mum, the elongation and the stamping property are all at the higher level. The method can avoid the idle of the production equipment of galvanizing line and reduce the depreciation loss of equipment.