41 results about "Bluing" patented technology

The invention relates to a heat treatment device and heat treatment technology thereof and discloses a vertical continuous annealing furnace bluing device and bluing technology thereof. A bluing medium station is arranged and is communicated with a rapid cooling section, an overaging section and a final cooling section of a hearth through medium pipelines to control opening degree of a control adjusting valve and a relief valve. Oxygen content in the rapid cooling section and/or the overaging section and/or the final cooling section of the hearth is adjusted to be in a range of 0.03%-1.00%. An existing vertical continuous annealing furnace is used and a bluing device is added so that two processes of annealing and bluing of a bluing steel belt are finished by once in the vertical continuous annealing furnace, and therefore device investment and following heat treatment energy consumption are saved; continuous mass production is achieved, production cost is low, performance of a product is stable, surface bluing effect is good and production efficiency is high.

Disclosed is a Zn-Sn composite coating bundling belt for bundling a precision electronic component. The Zn-Sn composite coating bundling belt comprises, by weight, C ranging from 0.05 percent to 0.10 percent, Mn ranging from 0.30 percent to 1.00 percent, Si smaller than or equal to 0.010 percent, P smaller than or equal to 0.010 percent, S smaller than or equal to 0.010 percent, Nb ranging from 0.030 percent to 0.060 percent, V ranging from 0.040 percent to 0.070 percent and Als ranging from 0.050 percent to 0.080 percent. A production method comprises the steps of smelting and continuous casting to form a blank, conventional casing blank heating, hot rolling, conventional pickling, cold rolling, conventional degreasing and belt manufacturing. The thickness of the product is 0.5 mm, the tensile strength is not smaller than 1000MPa, the extending rate is not smaller than 10 percent, the time of alternating bending is not smaller than eight (R is equal to 5mm), a Zn-Sn composite coating is generated on the surface of the belt, the coating is even and compact, and strong in adhesive force, the thickness of the coating is three micrometers to four micrometers, the coating has the beautiful luster appearance, and when the belt is placed in the indoor atmospheric environment, the service life of the belt is prolonged to be 510 days and the belt is not obviously corroded compared with a blue and painted bundling belt with the corrosion resistance time not exceeding two months to the highest. The bundling belt completely meets the requirement of the precision electronic component for bundling and packaging, the surface hardness of the bundling belt is low, the bundling belt is relatively soft, and the damage to the precision electronic component hardly exists.

The invention discloses an annealing and bluing process of a common cold-rolled coil. The annealing and bluing process comprises the following steps that (1) the common cold-rolled coil heated to be at the process temperature of 650-710 DEG C is subjected to heat preservation for 6-9 hours under the protection of nitrogen for annealing; (2) a common cold-rolled coil strip cover is cooled to 400 DEG C along with air cooling of a furnace under the protection of nitrogen; (3) air cooling is stopped, the common cold-rolled coil is naturally and slowly cooled to 360 DEG C in the cover, the time is60-120 Min, and the effect of homogenizing the temperature of the whole cold-rolled coil is achieved; (4) the common cold-rolled coil is discharged from the furnace at the high temperature of 360 DEGC and placed on a final cooling table, a cooling fan is kept to carry out 8000 Pa forced air cooling till the temperature of the steel coil is reduced to 160 DEG C, and the oxidation bluing treatmenttemperature of the steel coil is 160-360 DEG C; and (5) forced air cooling, and is stopped and the steel coil is naturally cooled to be at a room temperature. By adopting the method to treat the common cold-rolled coil, good annealing quality can be ensured, and meanwhile a uniform bluing effect can be obtained.

The invention discloses a surface bluing technique for a steel piece. The surface bluing technique is characterized by comprising the following steps that (1) degreasing is conducted; (2) acid pickling is conducted; (3) bluing is conducted; (4) saponification is conducted, and according to saponification, iron in micropores of an iron oxide film generated by bluing of a workpiece is converted into iron stearate and is in a passive state, so that the corrosion resistance is improved; a saponification solution is soapy water with the mass fraction being 2%-3%, the saponification solution is used in a boiled state for 5 min, and water drops should not exist on the saponified workpiece; and (5) oil immersion is conducted, specifically, the saponified workpiece is soaked into hot oil with the temperature being 105-115 DEG C for 1-3 min, the moisture is evaporated, and thus an oil film is formed. By the adoption of the bluing technique, a plurality of repetitive procedures are omitted, the working efficiency is improved, and the bluing effect is improved.

The invention discloses a reaction tank for a bluing process of a chain. The reaction tank comprises a tank body and medicament boxes arranged on the tank body, a plurality of medicament boxes are arranged, control discs matched with the medicament boxes are arranged on the side wall of the tank body, a first cover plate is arranged at the top of each medicament box, one end of each first cover plate is movably connected to the top of the corresponding medicament box, a push plate is arranged on the side wall of each first cover plate, a first through cavity communicating with the medicament boxes is formed in the side wall of the tank body, a cavity is formed in the bottom of the first through cavity, a material loading box is arranged in the cavity, a second through cavity is formed in the bottom of the cavity, the second through cavity is in communication with the interior of the tank body, and a weight inductor is arranged in the material loading box.

The invention discloses a preparation process of a bundling strip for packaging. A cold-rolled steel coil is used as a raw material. The preparation process comprises the following steps of uncoiling, welding, stripping by longitudinally shearing a steel belt, deburring and leveling, surface bluing, cooling, cleaning, surface zinc coating, coating drying, waxing and rolling, wherein the surface bluing step is realized in a way of heating at intermediate frequency by using an electromagnetic induction coil, the bluing temperature is controlled at 360-370 DEG C, and the heat preservation time is controlled within 25-35s; and in the surface zinc coating step, the mass ratio of an original paint to water is 1:2.5, the coating temperature ranges from 40 DEG C to 45 DEG C, and the surface zinc coating speed is controlled at 14-16m/min.

The invention belongs to the technical field of metal protective materials, and particularly relates to an anti-corrosion method of steel and the anti-corrosion steel. A bluing tank comprises a tank body, a conveyor belt, a sealing cover and an electromagnetic heating device; the tank body is of a cuboid structure with a cavity formed inside; the sealing cover is mounted at the opening in the upper end of the tank body; a feeding hole is formed in one side of the tank body, and a discharging hole is formed in the other side of the tank body; a feeding tank is fixedly connected to the position,outside the feeding hole, of the tack body, and a discharging tank is fixedly connected to the position, outside the discharging hole, of the tank body; the feeding tank and the discharging tank areboth obliquely formed; the electromagnetic heating device is connected to the bottom of the tank body in an embedded manner; guide rods which are uniformly distributed are rotationally connected intothe cavity of the tank body; each guide rod is sleeved with a rotating wheel; the conveying belt meshes with the rotating wheels; and according to the method and the steel, the conveying belt is usedfor driving a component to be subjected to bluing reaction in the slow moving process, the component is automatically turned over in the moving process, and then contact between the component and bluing liquid is uniform.

The invention discloses an alkaline surface bluing liquid which comprises the following chemical components by weight percent: 8%-12% of sodium phosphate, 7%-9% of sodium nitrate, 16-18% of sodium hydroxide, 4%-8% of sodium nitrite, 3%-5% of triethanolamine, 6%-12% of potassium nitrate, 5%-6% of passivator, 3%-5% of phosphorization accelerant and the balance of water. According to the invention, low-cost sodium nitrate is adopted for replacing the high-cost sodium nitrite, so that the bluing cost can be lowered; the operation process is simple; the experiment condition is easily realized; the surface bluing treatment process provided by the invention is easy in operation, short in time consumption, simple in operation process, easy in meeting the experiment condition and capable of effectively solving the problem of uneven molded bluing film.

The invention discloses a cloisonne manufacturing process free of wire inlaying. The cloisonne manufacturing process comprises the following steps that (1) material selection is conducted, and a qualified copper sheet is blanked according to a drawing, cut and formed; (2) the drawing is made, a thin copper plate or a thin aluminum plate with the shape and the size being matched with those of the copper sheet is selected, and the required patterns are hollowed on the thin copper plate or the thin aluminum plate; (3) bonding is performed, one surface of the hollowed thin copper plate or thin aluminum plate is dipped with bletilla striata lint paste to be bonded onto the surface of the copper plate; (4) wire welding is carried out; (5) a blank is made, and the copper sheet dipped with the hollowed thin copper plate or thin aluminum plate is made into a copper blank; (6) bluing is performed; (7) enameling is conducted; and (8) polishing and gold plating are carried out. The cloisonne manufacturing process free of wire inlaying has the beneficial effects that the wire inlaying process steps are changed into the steps that the patterns are manufactured on the thin copper plate or the thin aluminum plate in advance, then the patterns are bonded onto the surface of the copper sheet, and afterwards, the copper sheet is manufactured into the blank, so that the problems of low efficiencyand low speed caused by wire inlaying on the surface of the copper blank are solved, and the patterns obtained through plane drawing are more attached to the surface of the copper blank and have stronger expressive force.

The invention discloses a high-strength spot welding strapping band which comprises the following components in percent by weight: 0.15-0.24 percent by weight of C, 0.7-1.30 percent by weight of Mn, less than 0.010 percent by weight of Si, less than or equal to 0.010 percent by weight of P, less than or equal to 0.010 percent by weight of S, 0.020-0.050 percent by weight of V and 0.030-0.070 percent by weight of Als. A production method comprises the steps: smelting and continuously casting to form a blank, and heating a casting blank; roughly rolling; finish-rolling; coiling; conventionally pickling; cold-rolling; and making the strapping band. The thickness of the high-strength spot welding strapping band is 0.70 mm, the tensile strength of the high-strength spot welding strapping band is not lower than 980 MPa, the percentage elongation is not lower than 10 percent, the number of alternating bending is not less than 10 times (R=5 mm), and no brittle failure and layering exist; an Fe3O4 bluing layer with a thickness of 0.3-0.5 mu m, and uniformity and densification and strong adhesive force is formed on the surface. No cracks exist on a weld line, and a welding point is stable in surface quality and better in welding property; no remarkable corrosion is caused in an indoor atmospheric environment for 30 days; no blockage, breakage and coil loosening are caused during packing.

The invention relates to the field of chemical engineering, in particular to a chemical bluing pretreatment device. The technical problem to be solved by the invention is to provide the chemical bluing pretreatment device. According to the technical scheme, the chemical bluing pretreatment device comprises a lathe bed plate, a work control screen, a tool storage box, a mechanical cleaning mechanism and the like; and the middle left portion of the top end of the lathe bed plate is connected with a workpiece fixing bluing auxiliary mechanism, and the middle portion of the right end of the workpiece fixing bluing auxiliary mechanism is connected with a limiting pulling mechanism. According to the chemical bluing pretreatment device, dust on the surface of a spring steel sheet is removed whilethe bending state of the spring steel sheet is maintained; and under the condition that the original curly shape and elasticity of the spring steel sheet which is bent into a coil are not changed, the inner surface and the outer surface of the spring steel sheet are subjected to continuous synchronous rust removal treatment, and the spring steel sheet is subjected to oxidation bluing under the condition of high-frequency vibration after rust removal is completed.

The invention discloses a heating tube surface adding color bluing process, which comprises a transmission unit and an adding unit, the transmission unit is provided with a conveyor belt, an oven and a water tank, the conveyor belt is provided with the oven, the oven is provided with a spray gun and a mixing chamber, the conveyor belt passes through the lower end of the oven, and the spray gun is arranged in the water tank. The water tank is arranged at one end of the conveying belt, cooling water is arranged in the water tank, the adding unit is provided with a liquid ammonia tank, a decomposer and a carbon dioxide tank, the liquid ammonia tank is connected with the decomposer through a pipeline, the liquid ammonia tank is decomposed into hydrogen after passing through the decomposer, and the carbon dioxide tank is connected with the liquid ammonia tank through a pipeline. The hydrogen and the carbon dioxide are connected with an oven through a pipeline, and the hydrogen and the carbon dioxide are mixed in the mixing chamber of the oven.

The invention belongs to the technical field of metal surface treatment, and particularly relates to corrosion-resistant and rust-proof equipment for metal parts. Comprising a shell, a bluing treatment pond, a controller, a motor and a rotating shaft, the rust removal device further comprises a rust removal assembly fixedly connected with the shell, and the rust removal assembly is used for rust removal treatment of the spherical metal part. The washing assembly is arranged in the shell, and the washing assembly is used for carrying out washing treatment on the spherical metal part subjected to rust removal; the drying assembly is arranged below the rust removal assembly, and the drying assembly is used for drying the washed spherical metal part; the spherical metal part is poured into the rust removal barrel, the grinding gravels in the rust removal barrel conduct rust removal and grinding on the spherical metal part under the rotary stirring action of the top plate, rust on the surface of the spherical metal part is ground and removed, and the smoothness of the surface of the spherical metal part is improved; further, the subsequent corrosion-resistant and rust-proof treatment effect of the spherical metal part is improved; and the grinding efficiency of the spherical metal piece is further improved.

The invention discloses a production method of a bluing tape for round steel packaging. The tensile strength of the bluing tape is 530-580 MPa, and the size of the bluing tape is 1.2 mm thick *400 mmwide. The production method of the bluing tape comprises the steps of hoisting and spreading of strip steel, shearing of the strip steel, high-frequency quenching, annealing, rust prevention, and packaging warehousing. According to the technical scheme of the production method provided by the invention, the bluing tape is obtained through shearing quenching and secondary production and can be suitable for bundling and packaging of various sizes of round steel. The bluing tape is neither too hard nor too soft, ensures the tensile strength, meets the requirement of operators for bending the bluing tape during manual bundling, reduces the labor intensity, prevents the bluing tape from fracturing in the hoisting process, shortens the bundling and packaging time of the round steel, improves thebundling and packaging efficiency, avoids personal or equipment safety hazards caused by fracturing of the bluing tape and guarantees the transport safety of the round steel.

The invention relates to the field of steel, in particular to a rolled square billet peeling method. The method comprises the following steps that the peeling depth of the plane part is 0.30-0.95 mm,the peeling depth of the corner angle part is less than 1.05 mm, in a peeling process, and the ratio K of the rotating speed of a grinding wheel to the speed of a trolley is 70 to 125. The surface ofthe peeled billet obtained through the peeling method of the rolled square billet is free of peeling defects such as grinding residues, residual black rust, flashes and burrs, corner transition is smooth, surface defects of a decarburized layer and cogging rolling are completely removed, the surface is free of bluing, the ratio K of the rotating speed VZ of the grinding wheel to the longitudinal travelling speed VL of the trolley ranges from 70 to 125, peeling can be carried out accurately, the ratio K of the rotating speed VZ of the grinding wheel to the travelling speed VL of the trolley iscontrolled to range from 70 to 125, the peeling efficiency can be improved, the risk of billet surface burn can be well reduced, and peeled billet surface quality is improved.

The invention discloses non-quenched and tempered 950 MPa-grade high-strength strapping steel and a production method thereof.The non-quenched and tempered 950 MPa-grade high-strength strapping steel is prepared from, by mass, 0.18%-0.25% of C, 0.15%-0.25% of Si, 0.65%-0.85% of Mn, smaller than or equal to 0.035% of P, smaller than or equal to 0.025% of S, 0.005%-0.035% of Al and the balance iron and inevitable impurities, the non-quenched and tempered 950 MPa-grade high-strength strapping steel is suitable for production of the strapping steel, C and Mn serve as strengthening elements, a proper amount of Al is added to refine grains, and therefore the strength of the strapping steel is improved; and meanwhile, granular bainite is obtained by adopting ultralow-temperature coiling and laminar flow front-section concentrated cooling in hot rolling, and a proper bluing process with a large compression ratio is adopted in cold rolling, so that the excellent performance and the surface quality of a final product are ensured.

The invention relates to temporary protection ink (IPC classification number: C09D11/107), in particular to temporary protection ink for optical glass and a preparation method of the temporary protection ink. The coating at least comprises the following raw materials in parts by weight: 40-50 parts of an alcohol-soluble resin binder, 10-20 parts of a micron-sized filler, 10-20 parts of a solvent containing ether bonds and hydroxyl groups, 2-4 parts of fumed silica, 1-2 parts of a dimethylsilane modified defoaming agent, 1-2 parts of an acrylate aid and 1-2 parts of a silane coupling agent. According to the temporary protection ink for the optical glass, the neutral environment-friendly solvent propylene glycol methyl ether acetate (PMA) or alcohol can be used for deinking, the deinking time is within 30 seconds, the fogging and bluing phenomena of alkali liquor deinking are avoided, and the cleaning process is convenient and safe. Meanwhile, the prepared temporary protection ink is good in film-forming property, not prone to cracking and good in adhesive force and flexibility.

The invention discloses a steam bluing process method of a swing seat, and relates to the technical field of hydraulic pumps. The method comprises the following steps of S1, removing oil; S2, cleaning: after the swing seat is deoiled, using flowing cold water to rinse so as to remove oil on a surface of a workpiece, and then using cleaning hot water to clean; S3, inspecting the surface of the workpiece; S4, carrying out steam treatment: loading the workpiece into a furnace when a furnace temperature is 350-370 DEG C, electrifying and heating when the temperature of the workpiece reaches above150 DEG C, introducing steam, and meanwhile, completely opening an exhaust valve, exhausting air in a hearth, adjusting the exhaust valve, increasing air inlet pressure, increasing steam pressure of the hearth, carrying out direct heating and heat preservation, after the heat preservation is completed, opening the exhaust valve and increasing the air inlet pressure, carrying out outage, reducing the temperature in the furnace to 300 DEG C, stopping steam input, and taking the workpiece out of the furnace; S5, carrying out secondary steam treatment; S6, carrying out oil immersion treatment; andS7, controlling oil. The method has advantages that the workpiece is subjected to steam treatment, pores of an oxidation film are reduced, the oxidation film is uniformly formed, and corrosion resistance performance is guaranteed.