36results about How to "Reduce rolling times" patented technology

The invention discloses a rolling formation method of a large and medium titanium alloy solid disc-shaped forge piece , which comprises the following steps of: upsetting, compressing and punching a titanium alloy rod material into a solid disc blank; putting the disc blank into a rolling machine to roll; rolling the disc blank for 20s and axially rolling the hollow disc blank under an axial rolling force of 4000-4900KN at an axial feeding speed of 1.8mm / s to widen the hollow disc blank at a speed of 10-12mm / s; rolling the disc blank for 20-40s and axially rolling the hollow disc blank under an axial rolling force of 3000-3500KN at an axial feeding speed of 0.8mm / s to widen the hollow disc blank at a speed of 8-10mm / s; rolling the disc blank for 40-70s and axially rolling the solid disc blank under an axial rolling force of 2500-3000KN at an axial feeding speed of 0.5mm / s to widen the hollow disc blank at a speed of 5-8mm / s; and carrying out fire rolling to prepare the solid disc-shaped forge piece. The method is mainly used for rolling disc-shaped forge pieces with excellent shapes, sizes, textures and performances.

The invention discloses a rolling formation method of a large and medium high-temperature alloy hollow disc-shaped forge piece, which comprises the following steps of: upsetting, compressing and punching a high-temperature alloy rod material into a hollow disc blank; putting the disc blank into a rolling machine to roll; rolling the disc blank for 20s to enable the disc blank to widen at a speed of 9-11mm / s under 4000-4900KN of an axial rolling force at an axial feeding speed of 1.6mm / s; rolling the disc blank for 20-40s to enable the disc blank to widen at a speed of 7-9mm / s under 3000-3500KN of an axial rolling force and 3000-4000KN of a radial rolling force at an axial feeding speed of 0.7mm / s; rolling the disc blank for 40-80s to enable the disc blank to widen at a speed of 4-7mm / s under an axial rolling force of 2500-3000KN and a radial rolling force of 2000-3000KN at an axial feeding speed of 0.5mm / s; and carrying out fire rolling to prepare the hollow disc-shaped forge piece. The method is mainly used for rolling disc-shaped forge pieces with excellent shapes, sizes, textures and performances.

The invention relates to a method for preparing a high-flatness tungsten-nickel-iron alloy plate. The method comprises the following steps of pressing granulated and dried tungsten-nickel-iron alloy powder, and rolling the tungsten-nickel-iron alloy powder to obtain a tungsten-nickel-iron alloy green body with a thickness of 0.5 to 1.8mm and uniform density; placing the obtained tungsten-nickel-iron alloy green body into a sintering furnace, sintering the tungsten-nickel-iron alloy green body under the protection of hydrogen, and cold-rolling the sintered tungsten-nickel-iron alloy green body until the deformation reaches 40 percent; re-sintering the cold-rolled tungsten-nickel-iron alloy green body for 1 to 3 hours at the re-sintering temperature of 1,100 to 1,300 DEG C under the protection of hydrogen; repeating the former two steps until the thickness of the green body is smaller than 0.4mm; overlaying two tungsten-nickel-iron alloy plates with the thickness of 0.15mm, and rolling-milling the tungsten-nickel-iron alloy plates for about 25 times under the pressure of about 15T until the thickness of a single plate is less than 0.1mm. According to the method, a production process is simplified, the energy consumption is lowered, the production cost is reduced, and green production is ensured.

The invention relates to a sowing machine with functions of subsoiling, fertilizer application as well as furrowing and bed building. The sowing machine comprises a gearbox, a traction rack, an anti-winding mechanism, a zone subsoiling mechanism or a strip-shaped deep and rotary tillage mechanism, a soil loosening and gathering mechanism, a fertilizer application mechanism, a furrowing and bed building mechanism, a sowing mechanism, a vertical positioning mechanism, a compacting mechanism, a pesticide sprayer, a related transmission mechanism and the like, wherein the anti-winding mechanism can effectively prevent the straw winding problem, continuous sowing operation of the machine is guaranteed, the operation efficiency is improved, the problem about in-place burning of straw is solved, and the straw burning phenomenon is eliminated fundamentally; zone subsoiling is environment-friendly and energy-saving, and by means of subsoiling or deep and rotary tillage, plow pans are broken, the water-holding capacity is improved, the surface vegetation coverage is increased, and flowing dust pollution in air is reduced; by means of the furrowing and bed building mechanism, the sowing quality and the thickness of covering soil can be accurately controlled, shallow seeding of wheat can be realized, the problems of seedling weakness, death caused by drought, death caused by freezing, late lodging and the like caused by uneven sowing deepness by means of a traditional sowing machine are solved fundamentally, the seedling emergence rate is greatly increased, and quality seeds are saved.

The invention relates to a method for preparing a high-flatness pure-tungsten metal sheet. The method comprises the following steps of placing a pure-tungsten metal plate with a thickness of 0.1 to 0.4mm on a preheating roller mill for warm rolling, and rolling-milling the pure-tungsten metal plate until the deformation is 30 percent under the conditions of pressure of about 12T and speed of 200 to 600r / min, wherein a single feeding mode is adopted; uniformly dividing the rolled pure-tungsten metal plate along the length direction, and overlaying the uniformly-divided pure-tungsten metal plates along the thickness direction; performing subsequent warm rolling by adopting a double-layer overlaying feeding method, and rolling the pure-tungsten metal plates on the roller mill until the thickness of a single plate reaches a required thickness. According to the method, the number of intermediate annealing times is reduced, a production process is simplified, the rolling pressure and rolling passes are reduced, the energy consumption is effectively reduced, the production cost is lowered, and the production efficiency is improved.

The invention discloses a production method for an industrial pure titanium plate. The production method for the industrial pure titanium plate comprises the steps that (1), a titanium material blankbody is heated, descaled and subjected to at least one time of rough rolling, and a titanium plate blank body is obtained; (2), 5-6 passes of finish rolling is conducted on the titanium plate blank body by adopting a seven-rack hot continuous rolling mill throwing rack, and a titanium plate is obtained; and (3), after the titanium plate is cooled, an industrial pure titanium plate finished productis obtained. By adopting the production method, the titanium plate rolling number can be decreased, the reduction rate of each pass is increased, grains are refined, and the properties of the titanium plate are improved; and meanwhile, rolling consumed oil and cooling water are reduced while the rolling number is decreased, and the rolling cost is reduced.

The invention discloses a rolling formation method of a large and medium stainless steel hollow disc-shaped forge piece , which comprises the following steps of: upsetting, compressing and punching a stainless steel rod material into a hollow disc blank; putting the disc blank into a rolling machine to roll; rolling the disc blank for 20s to enable the disc blank to widen at a speed of 10-15mm / s under 4000-4900KN of an axial rolling force at an axial feeding speed of 2mm / s; rolling the disc blank for 20-40s to enable the disc blank to widen at a speed of 8-12mm / s under 3000-3500KN of an axial rolling force and 3000-4000KN of a radial rolling force at an axial feeding speed of 1mm / s; rolling the disc blank for 40-60s to enable the disc blank to widen at a speed of 5-8mm / s under 2500-3000KN of an axial rolling force and 2000-3000KN of a radial rolling force at an axial feeding speed of 0.5mm / s; and carrying out fire rolling to prepare the hollow disc-shaped forge piece. The method is mainly used for rolling disc-shaped forge pieces with excellent shapes, sizes, textures and performances.

The invention discloses a roll forming method of large and medium-size structural steel hollow disk-shaped forgings, comprising the following steps of: firstly preparing structural steel bar stocks into hollow disk blanks through upsetting, profiling and punching, and then feeding the disk blanks into a rolling mill for rolling; broadening the disk blanks at the speed of 5-12 mm / s under the axial rolling force of 4500 kN-4900 kN within the rolling time of 60s and at the axial feeding speed of 1.5 mm / s; broadening the disk blanks at the speed of 3-10 mm / s under the axial rolling force of 3000 kN-3900 kN and the radial rolling force of 3500 kN-4000 kN within the rolling time of 60s-100s and at the axial feeding speed of 1.2 mm / s; and broadening the disk blanks at the speed of 2-6 mm / s under the axial rolling force of 200 kN-3000 kN and the radial rolling force of 2500 kN-3000 kN within the rolling time of 100-120s and at the axial feeding time of 0.8 mm / s, and then rolling the disk blanks into the hollow disk-shaped forgings under fire. The method is mainly used for rolling the disk-shaped forgings with excellent shapes, sizes, tissues and properties.

The invention relates to a method for preparing a high-flatness wide pure-molybdenum metal plate. The method comprises the following steps of placing pure-molybdenum metal powder into a roller mill, and rolling-milling the pure-molybdenum metal powder to obtain a green body with a thickness of 0.5 to 1.4mm and a width of 120 to 160mm; placing the obtained pure-molybdenum metal plate green body into a high-temperature furnace, sintering the pure-molybdenum metal plate green body for 1 to 3 hours, and cooling and discharging the pure-molybdenum metal plate blank out of the high-temperature furnace; rolling-milling the pure-molybdenum metal plate blank preheated to required temperature for many times by using a roller mill; when the thickness deformation of the pure-molybdenum metal plate blank in the previous step reaches 20 to 40 percent, keeping the rolled plate at the temperature of 900 to 1,300 DEG C for 1 to 3 hours, and cooling and discharging the rolled plate out of the furnace; repeating the former two steps until the pure-molybdenum metal plate is rolled-milled to the thickness of about 0.5mm, placing the obtained pure-molybdenum metal plate into a four-roller mill, and rolling-milling the pure-molybdenum metal plate to the thickness of about 0.25mm; placing two pure-molybdenum metal plates with the thickness of 0.25mm into the four-roller mill in an overlaying way, and rolling-milling the pure-molybdenum metal plates to the thickness of less than 0.15mm. According to the method, procedures are simplified, the energy consumption is lowered, the consumption is lowered, the cost is reduced, and green production can be ensured.

The invention discloses a roll forming method of a large and medium structural steel solid disk forging, which comprises the following steps of: firstly upsetting structural steel bar materials, profiling into a solid disk blank; and rolling the disk blank in a rolling machine. When rolling within 60s, expanding the disk blank at a speed of 5-12mm / s under a 4500-4900KN axial rolling force with an axial feed speed of 1.5mm / s; when rolling in the time range of 60-100s, expanding the disk blank at a speed of 3-10mm / s under a 3000-3900KN axial rolling force with an axial feed speed of 1.2mm / s; and when rolling in the time range of 100-120s, expanding the disk blank at a speed of 2-6mm / s under a 2000-3000KN axial rolling force with an axial feed speed of 0.8mm / s, and finally rolling into the solid disk forging on one-grade fire. The method is mainly used for rolling the disk forging with excellent shape, dimension, organization and performance.

The invention discloses a rolling formation method of a large and medium hollow titanium alloy disc-shaped forge piece , which comprises the following steps of: upsetting, compressing and punching a titanium alloy rod material into a hollow disc blank; putting the disc blank into a rolling machine to roll; rolling the disc blank for 20s and axially rolling the hollow disc blank under 4000-4900KN of an axial rolling force at an axial feeding speed of 1.6mm / s to widen the hollow disc blank at a speed of 10-12mm / s; rolling the disc blank for 20-40s and axially rolling the hollow disc blank under an axial rolling force of 3000-3500KN and a radial rolling force of 3000-4000KN at an axial feeding speed of 0.8mm / s to widen the hollow disc blank at a speed of 8-10mm / s; rolling the disc blank for 40-70s and axially rolling the hollow disc blank under an axial rolling force of2500-3000KN and a radial rolling force of 2000-3000KN at an axial feeding speed of 0.5mm / s to widen the hollow disc blank at a speed of 5-8mm / s; and carrying out fire rolling to prepare the hollow disc-shaped forge piece. The method is mainly used for rolling disc-shaped forge pieces with excellent shapes, sizes, textures and performances.

The invention provides anti-rust heat-resistant deformed steel and a processing technology thereof. The deformed steel comprises a base material, a heat-resistant layer and an anti-rust layer; the base material comprises the following chemical components in percentage by mass: 0.2 to 1 percent of carbon, 2 to 3 percent of silicon, 8.2 to 10 percent of tungsten, 2 to 6 percent of molybdenum, 20 to 45 percent of chromium, 0.1 to 0.2 percent of cobalt, 0.5 to 1 percent of manganese, 0.2 to 0.6 percent of vanadium and the balance of iron; the processing technology of the base material comprises the steps of cleaning, dephosphorization, rolling, controlled cooling and straightening; specifically, a steel billet is placed in a cleaning solution, subjected to ultrasonic cleaning and drying and then heated to 1000-1200 DEG C in a furnace, the steel billet is discharged out of the furnace, cooled and then descaled through high-pressure water of 15-25 MPa, the steel billet is sent to a two-roller reversible rolling mill to be roughly rolled, then a universal continuous rolling unit is adopted for continuous rolling, controlled cooling and straightening, and the base material is obtained; the base material is subjected to sand blasting treatment, the surface of the base material is coated with the epoxy micaceous iron oxide intermediate paint, and then the epoxy micaceous iron oxide intermediate paint is coated with the anti-rust coating to serve as an anti-rust layer; and the antirust layer is coated with a heat-resistant coating as a heat-resistant layer.

The invention discloses a rolling formation method of a large and medium titanium alloy solid disc-shaped forge piece , which comprises the following steps of: upsetting, compressing and punching a titanium alloy rod material into a solid disc blank; putting the disc blank into a rolling machine to roll; rolling the disc blank for 20s and axially rolling the hollow disc blank under an axial rolling force of 4000-4900KN at an axial feeding speed of 1.8mm / s to widen the hollow disc blank at a speed of 10-12mm / s; rolling the disc blank for 20-40s and axially rolling the hollow disc blank under an axial rolling force of 3000-3500KN at an axial feeding speed of 0.8mm / s to widen the hollow disc blank at a speed of 8-10mm / s; rolling the disc blank for 40-70s and axially rolling the solid disc blank under an axial rolling force of 2500-3000KN at an axial feeding speed of 0.5mm / s to widen the hollow disc blank at a speed of 5-8mm / s; and carrying out fire rolling to prepare the solid disc-shaped forge piece. The method is mainly used for rolling disc-shaped forge pieces with excellent shapes, sizes, textures and performances.

The invention relates a PS version aluminum base material heat rolling, then heat rough rolling then fine rolling, with previous rolling temperature starting from 470deg.C to 360-380deg.C finally after 11 times rolling, till 230-250deg.C after 4 times fine rolling. The aluminum base thermal rolling process is even in distribution and evasive, with electrolytic corrosion obviously better than that of traditional one.

The invention discloses a rolling forming method of large and medium scale stainless steel solid disk forgings. Firstly stainless steel bar stock is upset and profiled to form a solid disk billet, and then the disk billet is loaded into an elongator to be rolled. During 20 s rolling, the disk billet is expanded at the speed of 10 to 15 mm / s under the condition that axial feeding speed is 2 mm / s and axial rolling force is 4000 to 4900 KN; during 20 to 40 s rolling, the disk billet is expanded at a speed of 8 to 12 mm / s under the condition that axial feeding speed is 1 mm / s and axial rolling force is 3000 to 3500 KN; and during 40 to 60 s rolling, the disk billet is expanded at a speed 5 to 8 mm / s under the condition that axial feeding speed is 0.5 mm / s and axial rolling force is 2500 to 3000 KN, and finally the solid disk forgings are rolled on one-grade fire. The method is mainly applied to the disk forgings with excellent rolling shapes, dimensions, tissues and properties.

The invention discloses a roll forming method of a large and medium high-temperature alloy solid disk forging, which comprises the following steps of: firstly upsetting high-temperature alloy bar materials, profiling into a solid disk blank; and rolling the disk blank in a rolling mill; when rolling within 20s, expanding the disk blank at a speed of 9-11mm / s under a 4000-4900KN axial rolling force with an axial feed speed of 1.6mm / s; when rolling in the time range of 20-40s, expanding the disk blank at a speed of 7-9mm / s under a 3000-3500KN axial rolling force with an axial feed speed of 0.7mm / s; and when rolling in the time range of 40-80s, expanding the disk blank at a speed of 4-7mm / s under a 2500-3000KN axial rolling force with an axial feed speed of 0.5mm / s; and finally rolling into the solid disk forging in one beating. The method is mainly used for rolling the disk forging with excellent shape, dimension, organization and performance.

The invention discloses a processing technology for a mineral insulated fireproof cable. The processing technology is characterized in that in the copper sheath preparation process of the finished mineral insulated fireproof cable, initial modeling pipe diameter of a copper sheath before rolling is 13.5mm-16.5mm, and pipe diameter of the corresponding finished product capable of being rolled is 11.5mm-13mm. Similarly, initial modeling pipe diameter of the copper sheath before rolling is 15.5mm-18.5mm, 17.5mm-20.5mm, 18.5mm-21.5mm, 20.3mm-23.3mm, 22.5mm-25.5mm, 25.5mm-28.5mm and 28.6mm-31.6mm respectively; and pipe diameter of the corresponding finished product capable of being rolled is 13mm-14.5mm, 14.5mm-16.5mm, 16mm-17.5mm, 17.5mm-19mm, 19.5mm-21.5mm, 22.5mm-24.5mm and 25mm-27mm respectively as for the finished mineral insulated fireproof cable. The fireproof cable is produced by adopting the aforementioned parameters so that yield rate and production efficiency of the fireproof cable can be effectively enhanced, production cost and energy consumption can be reduced, the number of times of rolling can be reduced, processing length of the fireproof cable can be increased, intermediate connectors can be reduced, installation and laying are facilitated, and the fireproof effect and the service life of the cable can be enhanced.

The invention discloses a roll forming method of a large and medium aluminum alloy solid disk forging, which comprises the following steps of: firstly upsetting aluminum alloy bar materials, profiling into a solid disk blank; and rolling the disk blank in a rolling machine; when rolling within 20s, expanding the disk blank at a speed of 9-12mm / s under a 4000-4900KN axial rolling force with an axial feed speed of 1.9mm / s; when rolling in the time range of 20-40s, expanding the disk blank at a speed of 8-10mm / s under a 3000-3500KN axial rolling force with an axial feed speed of 0.9mm / s; and when rolling within the time range of 40-70s, expanding the disk blank at a speed of 5-8mm / s under a 2500-3000KN axial rolling force with an axial feed speed of 0.5mm / s; and finally rolling into the solid disk forging one one-grade fire. The method is mainly used for rolling the disk forging with excellent shape, dimension, organization and performance.

The invention discloses a harvesting and sowing integrated compound operation machine. The harvesting and sowing integrated compound operation machine comprises a combine harvester, a stubble cleaningdevice, a shallow loosening device, a fertilizing device, a rotary tillage ditching device, a rape sowing device, a detecting device, a first driving device, a second driving device and a control device, wherein the stubble cleaning device is mounted below a header of the combine harvester; and the shallow loosening device, the fertilizing device, the rotary tillage ditching device and the rape sowing device are mounted at the tail of a chassis of the combine harvester in a rear-mounted manner. According to the harvesting and sowing integrated compound operation machine disclosed by the invention, in the premise that the combine harvester normally operates, the complexity of manual operation is not increased, normal operation of the combine harvester is not influenced, and operations of stubble cleaning, shallow loosening, fertilizing, rotary tillage, ditching, rape sowing, crushed grass throwing, soil burying and the like can be completed at one time while rice is harvested, so thatthe purposes of reducing the number of times of rolling the ground of agricultural machinery, alleviating the soil hardening degree and saving the operation cost are achieved.

The invention discloses a forming method of an iridium alloy sealing cladding. The forming method comprises the following steps: (1) rolling an iridium alloy plate; (2) preparing an iridium alloy wafer; and (3) spinning forming of the iridium alloy cladding: forming by adopting a hot spinning mode, and carrying out precision machining after forming to obtain the iridium alloy sealing cladding. In the hot rolling process of the iridium alloy plate, the stainless steel plate is coated on the basis of the traditional molybdenum plate coating process, so that volatilization of the molybdenum plate can be inhibited, the heat preservation effect of the alloy blank is improved, generation and expansion of cracks on the surface of the plate blank are prevented, and the yield of the iridium alloy plate is improved. A hot spinning method is adopted for cladding forming, the spinning temperature is increased, and the pass deformation amount is controlled, so that the problem that microcracks are easily generated due to stress concentration at the corners of the bottom of the cladding in the stamping process is solved, and the finished product rate of iridium alloy cladding forming is increased. According to the method, the problem of low yield of iridium alloy plate and cladding forming is solved, and the development process of a 238Pu isotope heat source can be effectively promoted.

The invention discloses a rolling forming method of a large and medium-sized aluminum alloy hollow disc forging. Firstly, the aluminum alloy bar is subjected to upsetting, pressing and punching to form a hollow disc blank, and then the disc blank is put into a rolling machine for rolling. system. Within 20s of rolling, the disk blank is widened at a speed of 9mm / s~12mm / s at an axial feed rate of 1.9mm / s and an axial rolling force of 4000KN~4900KN; within 20s~40s of rolling, The disc blank is widened at a speed of 8mm / s to 10mm / s at an axial feed rate of 0.9mm / s, an axial rolling force of 3000KN~3500KN and a radial rolling force of 3000KN~4000KN; rolling Within 40s ~ 70s, with the axial feed speed of 0.5mm / s, under the axial rolling force of 2500KN ~ 3000KN and the radial rolling force of 2000KN ~ 3000KN, the disk blank is fed at a speed of 5mm / s ~ 8mm / s Speed ​​widening, one-fire rolling into a hollow disc forging. This method is mainly used for rolling disc-shaped forgings with excellent shape, size, structure and performance.