97results about How to "Easy to organize production" patented technology

The invention relates to a surface chemico-thermal treatment method for mechanical parts and equipment used by the surface chemico-thermal treatment method. The equipment comprises a material feeding and storing platform, a front washing machine, a pre-oxidizing furnace, a heating furnace, a rotary health carburizing furnace, a rotary bottom type diffusion furnace, a quenching cooling furnace, a quenching heat insulating chamber, a quenching oil tank, a rear washing machine, a low-temperature tempering furnace, an air cooling platform and a discharging platform. The devices are relatively independent, and integrally connected with transmission mechanisms to achieve the production technology of feeding material and preparing material-primarily washing-pre-oxidizing- heating-carburizin-diffusing-cooling-preserving temperature-quenching-finally washing-tempering-cooling with air-discharging and storing material. According to the devices, the forcible carburizing and diffusing in the carburizing technology are decomposed and individually carried out through an individual forcible carburizing chamber and an individual diffusion chamber, and the forcible carburizing and diffusing are combined based on different processing times, so that the requirements on mass production of the same furnaces different in requirements on layer depth and different in materials and parts are achieved; and the efficiency of the equipment is exerted to the maximum.

The invention discloses a roll forming method of a TC25 titanium alloy thin-walled ring forging. In order to roll-form a thin-walled ring forging with high dimensional precision and excellent tissue and performance, the technical scheme comprises the steps of: firstly, sleeving a preheated follower die sleeve and a titanium alloy pre-rolled blank heated to a deformation temperature in a ring rolling mill, sleeving the follower die sleeve in the pre-rolled blank, and positioning the two workpieces by using a main roll, a core roll, clutching rolls, an upper cone roll and a lower cone roll of the ring rolling mill; and starting the ring rolling mill, making a feeding motion by the core roll towards the direction of the main roll along the radial direction and rolling the pre-rolled blank at a rolling force of 200-4000KN under the support of the follower die sleeve by the core roll together with the main roll to ensure that the pre-rolled blank expands radially at a speed of 5-10mm/s, wherein the wall thickness is gradually reduced, and the pre-rolled blank is rolled into the thin-walled ring forging when the deformation reaches 25-45 percent. The minimum value of the wall thickness of the titanium alloy thin-walled ring forging roll-formed by adopting the method is 25mm, the maximum value of the height-thickness ratio is 25mm, and the ring forging is mainly used for gyrorotor parts, such as a cylindrical shell and the like used in the fields, such as aerospace and the like.

The invention relates to a three-dimensional woven material based on symmetry of a space group, the woven geometric structure of the woven material is the structure which extends and is woven in three-dimensional space in the form of continuous yarns, the yarn section in a representative volume unit in the woven geometric structure can meet the symmetry of points described in a space point group,and the woven structure integrally shows three-dimensional woven fabric, which is mutually interwoven in the three-dimensional space and obtained by using translation symmetrical operation described by the space group to carry out translation on the representative volume unit. The new three-dimensional woven geometric structure which meets the symmetry of the space group is deduced via the woven material by taking the representative volume unit capable of meeting the symmetry of the point group as a basic structure unit, and a new three-dimensional woven material type with excellent geometricstructure and performance can be obtained by studying the process feasibility and predicting the fiber content, by volume percentage, of the corresponding three-dimensional woven fabric. An array of the woven material adopts the shape of a regular hexagon, so that the motion trajectory of a yarn carrier is convenient to realize, and the production is easy to organize.

The invention discloses a roll forming method of a 2A70 aluminum alloy thin-walled ring forging. In order to roll-form a thin-walled ring forging with high dimensional precision and excellent tissue and performance, the technical scheme comprises the steps of: firstly, sleeving a preheated follower die sleeve and an aluminum alloy pre-rolled blank heated to a deformation temperature in a ring rolling mill, sleeving the follower die sleeve in the pre-rolled blank, and positioning the two workpieces by using a main roll, a core roll, clutching rolls, an upper cone roll and a lower cone roll of the ring rolling mill; and starting the ring rolling mill, making a feeding motion by the core roll towards the direction of the main roll along the radial direction and rolling the pre-rolled blank at a rolling force of 100-2500KN under the support of the follower die sleeve by the core roll together with the main roll to ensure that the pre-rolled blank expands radially at a speed of 4-11mm/s, wherein the wall thickness is gradually reduced, and the pre-rolled blank is rolled into the thin-walled ring forging when the deformation reaches 35-55 percent. The minimum value of the wall thickness of the aluminum alloy thin-walled ring forging roll-formed by adopting the method is 25mm, the maximum value of the height-thickness ratio is 25mm, and the ring forging is mainly used for gyrorotor parts, such as a cylindrical shell and the like used in the fields, such as aerospace and the like.

The invention relates to a method for producing an ultra-thick steel plate with high strength and high low-temperature toughness by adopting a controlled rolling process, in particular to a process for producing a hot rolling steel plate with high strength and high low-temperature toughness in the specification of 40-100mm by utilizing a continuous casting blank with the thickness of 250-300mm. The steel comprises the following chemical components in percentage by weight: 0.10-0.20% of C, 0.15-0.40% of Si, 1.20-1.60% of Mn, less than or equal to 0.015% of S, less than or equal to 0.015% of P, 0.010-0.050% of Nb, 0.25-0.50% of Ni, 0.01-0.02% of Ti and the balance of Fe and trace impurities. The product in the invention is reasonable in chemical composition design, the production process is simple, and the ultra-thick (maximum thickness can reach 100mm) high-quality hot rolled steel plate with high strength (tensile strength is more than 490MPa) and high low-temperature toughness (impact power at the temperature of minus 40 DEG C is more than 100J) can be produced by adopting a reasonable controlled rolling process.

This invention provides a 6063 aluminum alloy made by cryptomere aluminium ingot. It is constituted by Al, Si, Mg, RE, B elements, quality portion is that Si 0.20~0.6%, Mg 0.45~0.9%, REíœ0.35%, Bíœ0.01%. It also provides a method of preparing the 6063 aluminum alloy, aluminum oxide and titanium oxide compound is added into aluminum electrolyte tank, cryptomere aluminium ingot with titanium quality portion is 0.01~0.20% is generated, alloy element is added to cryptomere aluminium ingot directly from electrolyte tank or by cryptomere aluminium ingot melting to melted 6063 aluminum alloy. Because of its special titanium adding mode, production cost is cheap, as-cast grain is little and uniform, its tensile strength is equal to 6063 aluminum alloy thinned by aluminium titanium boron hardner, and extensibility is increased 20% and better surface capability can get. 6063 aluminum alloy after pressure has good ageing characteristic, it can reach high intension in short time and keep high intension long time, it is hard overaging.

The invention provides a manufacturing device and production process of forged steel balls. A numerical control die forging hammer is mainly used; the numerical control die forging hammer comprises ahammer head, a machine body, a sliding block, an upper anvil block, a lower anvil block, a refrigerating machine and a steel ball die; the steel ball die comprises an upper clamping tire, a lower clamping tire, an upper die core, a lower die core, an ejector rod and a discharging rod; the steel ball die is a closed type die forging steel ball die. A production line mainly comprises a heating furnace, a bar shearing machine, a transferring device, the numerical control die forging hammer, a rounding machine and an isothermal quenching machine. The forged steel balls produced by the numerical control die forging hammer and the equipment of the production line device have the advantages of being good in steel ball roundness, high in steel ball quality, high in production efficiency and the like.

The invention discloses wide weather-resistant steel for a 700 MPa-level hot-rolled container and a manufacturing method thereof. The steel contains C: 0.058%-0.078%, Si: 0.65%-0.75%, Mn: 0.65%-0.85%,P: 0.035%-0.045%, S: less than or equal to 0.006%, Al: less than or equal to 0.040%, Cr: 0.22%-0.31%, Cu: 0.11%-0.19%, Ti: 0.060%-0.075%, RE: 0.021%-0.035%, N: less than or equal to 0.005%, and the balance Fe and inevitable impurities. The outlet temperature of a billet soaking section is 1283-1300 DEG C, the holding time is 27-41 min, and the total in-furnace time is less than or equal to 178 min. Rough rolling outlet temperature is greater than or equal to 1100 DEG C, finish rolling start temperature is 1087-1108 DEG C, finish rolling finish temperature is 925-947 DEG C, a billet is cooledto 655-675 DEG C for taking up at a cooling rate of 37-47 DEG C/s, flattening force is 5500-6500 KN, and bending force is 30-40 KN. The flatness of a finished steel sheet after flattening is less thanor equal to 3 mm/m.

The invention discloses a preparation method for a coix seed oil microemulsion. The coix seed oil microemulsion is a coix seed oil microemulsion system which consists of coix seed oil, composite emulsifiers, emulsifier aids, distilled water and the like. Each 100 milliliters of coix seed oil microemulsion contains 5 to 13 grams of coix seed oil, 20 to 30 grams of composite emulsifiers, 1 to 2 grams of emulsifier aids, 0 to 10 grams of dispersants and the balance of water. The microemulsion is prepared by uniform magnetic stirring at 40 DEG C. The preparation method for the coix seed oil microemulsion has the advantages of small addition amount of the emulsifiers, simple process, high oil load, high bioavailability and the like.

The invention discloses a rolling and forming method for a 0Cr25Ni20 stainless steel thin-wall ring, aiming to roll and form the thin-wall ring with high forming size precision and good tissue and performance. The invention has the technical scheme that the method comprises the following steps of: firstly, sheathing a 0Cr25Ni20 stainless steel pre-rolled blank which is heated to deformation temperature and a preheated follow-die die into a ring rolling machine, sheathing the follow-die die into the pre-rolled blank, and positioning the two workpieces by using a home roll, a core roll, a snubber roll and upper and lower cone rolls of the ring rolling machine; then starting the ring rolling machine, and enabling the ring rolling machine to make the feed movement along the radial direction towards the direction of the home roll and roll the pre-rolled blank together with the home roll by a rolling force of 150KN-3000KN under the support of the follow-up die to make the pre-rolled blank broadened along the radial direction at the speed of 6mm/s-13mm/s so that the wall thickness of the pre-rolled blank is gradually reduced; and rolling the pre-rolled blank into the thin-wall ring after the deformation of the pre-rolled blank reaches 40-60 percent. The wall thickness minimum value of the 0Cr25Ni20 stainless steel thin-wall ring rolled and formed by the method is 25mm, and the maximum value of height-thickness ratio is 25mm. The ring is mainly used for a revolving body part used in oil gas field and the like.

The invention discloses a movable straw solidification device which comprises a cracking knead machine, an internal-combustion engine, wheels, a frame, a briquetting machine, a depressor, a dust catcher, a feed pipe and a duct, wherein the frame equipped with the wheels can be moved, the middle part of the upper plane of the frame is provided with the internal-combustion engine, the two sides of the upper plane of the frame are respectively provided with the cracking knead machine and the briquetting machine, and the internal-combustion engine, the cracking knead machine and the briquetting machine are driven by a belt transmission mechanism; the inlet end of the briquetting machine is upwards connected with the outlet end of the upper depressor, and the feed pipe is connected with the outlet of the cracking knead machine and the inlet of the depressor, so that falling cracked straws are briquetted into densified straw materials, then the densified straw materials are sequentially discharged from the lower outlet of the device; and the vertical dust catcher is arranged at one side of the depressor, and the dust-laden waste gas discharged from the outlet of the depressor is guided into the dust catcher by virtue of the duct so as to carry out purification and exhaust on the dust-laden waste gas. The movable straw densification briquetting device disclosed by the invention integrates the functions of shredding, kneading and briquetting, and can be moved so as to complete the solidification of straws nearby, thereby reducing the costs for transporting and storing purchased straws. The small integral device is simple in structure, easy to manufacture and easy to use, therefore, the device is beneficial for wide promotion and application.

The invention belongs to the technical field of ceramic materials, and in particular relates to a method for preparing a large-aperture three-dimensional network SiC ceramic material. The method comprises the following steps of: mixing SiC powder and B4C powder; adding ammonia hydroxide, sugar, acrylamide, N,N-methylene bisacrylamide and water in a ball milling manner to form a SiC mixed slurry; adding a surfactant, a foaming agent hydrogen peroxide and an adhesive into the SiC mixed slurry, uniformly stirring, and adding an initiator gel for foaming to obtain foaming gel; insulating and sintering the foaming gel for 0.5-1 hour at 1,950-2,040 DEG C in an inert atmosphere to obtain the large-aperture three-dimensional network SiC ceramic material. According to the method, a macropore three-dimensional network silicon carbide can be prepared, the size of apertures can be controlled by controlling the concentration and dosage of polyvinyl alcohol, and the porosity and aperture can be controlled by controlling the dosage of the hydrogen peroxide solution, and the communication performance of macropores can be effectively improved by using the surfactant. The method is simple and reliable, does not need high fixed investment, and has an excellent application prospect.

The invention is about decorative brick used in indoor-outdoor wall face and ground ornament which is acted as the overall structure and produced through dressing after the dimidiate concrete body. Compared with the existing concrete complex structure decorative brick, it's shrinkage breakup is difficult, service life is long, technology is simple, production cycle is short and cost is low. The decorative surface is shaped through dressing to the dimidiate cement body. Therefore the colorful stone cross-section in the concrete body open naturally. The external appearance is like the crude 'zimu stone'. It is simple and natural. The decorative impression is novel. It is the perfect decorative stuff of wall face and ground.

The invention discloses a method for rolling and forming TC11 titanium alloy thin-walled rings, which is used for rolling and forming thin-walled rings with high size precision and good organization and performance. The method comprises the following steps: firstly, nesting a pre-rolled titanium alloy billet which is heated to a deformation temperature and a preheated follow-up die sleeve into a ring rolling mill, and positioning the two workpieces by a main roller, a core roller, a holding roller, an upper cone roller and a lower cone roller of the ring rolling mill, wherein the follow-up die sleeve is nested in the pre-rolled billet; and then, starting up the ring rolling mill to enable the core roller to make a feed motion radially towards the direction of the main roller and roll the pre-rolled billet together with the main roller by the rolling force of 200KN-4000KN under the support of the follow-up die sleeve, so that the width of the pre-rolled billet is expanded radially at a speed of 5-10mm/s, the wall thickness of the pre-rolled billet is gradually reduced, and after the deformation of the pre-rolled billet reaches 25%-45%, the pre-rolled billet is rolled into a thin-walled ring. The minimum value of the wall thickness of the titanium alloy thin-walled ring rolled by the method is 25 mm, and the maximum value of the height-to-thickness ratio thereof is 25 mm. The ring is mainly used for components of revolved bodies such as cylindrical shells and the like used in the fields of aviation and the like.

The invention discloses a rolling and forming method for a 0Cr25Ni20Mo2 stainless steel thin-wall ring, aiming to roll and form the thin-wall ring with high forming size precision and good tissue and performance. The invention has the technical scheme that the method comprises the following steps of: firstly, sheathing a 0Cr25Ni20Mo2 stainless steel pre-rolled blank which is heated to deformation temperature and a preheated follow-up die sleeve into a ring rolling machine, sheathing the follow-up die sleeve into the pre-rolled blank, and positioning the two workpieces by using a home roll, a core roll, a snubber roll and upper and lower cone rolls of the ring rolling machine; then starting the ring rolling machine, and enabling core roll to make the feed movement along the radial direction towards the direction of the home roll and roll the pre-rolled blank together with the home roll by a rolling force of 150KN-2,900KN under the support of the follow-up die sleeve to make the pre-rolled blank broadened along the radial direction at the speed of 7mm/s-13mm/s so that the wall thickness of the pre-rolled blank is gradually reduced; and rolling the pre-rolled blank into the thin-wall ring after the deformation of the pre-rolled blank reaches 40-60 percent. The minimum wall thickness value of the 0Cr25Ni20Mo2 stainless steel thin-wall ring rolled and formed by the method is 25mm, and the maximum value of height-thickness ratio is 25mm. The ring is mainly used for a revolving body part used in oil gas field and the like.

The invention discloses a hydraulic oil cylinder. A buffer sleeve capable of sliding along the axial direction of a piston rod additional section is sleeved on the piston rod additional section in a rodless cavity; a rodless cavity hermetic end face which can be used for blocking the buffer sleeve and can be jointed with the first end face of the buffer sleeve to form a sealing surface is arranged in an oil cylinder cavity between a rodless cavity oil flow hole and a final position of the piston rod in retracting movement in a piston rod-free end face; at least one throttling oil channel is formed; and in the retracting movement process of the piston rod, hydraulic oil on one side of the sealing surface close to a piston can flow towards the rodless cavity oil flow hole through the throttling oil channel from the moment when the first end face of the buffer sleeve is jointed with the rodless cavity hermetic end face and the sealing surface is formed to the moment when the piston rod retracts to the final position in the retracting movement. The hydraulic oil cylinder has the advantages of easiness in machining of a buffer structure and good effect. The invention also provides a hydraulic buffer system using the hydraulic oil cylinder, an excavator and a concrete pump truck.

The invention discloses a novel automatic aligning roller of a belt conveyer, which comprises two rubber rollers (1), a rubber sleeve (2) and a wabbler mechanism (3), wherein the two robber rollers (1) are symmetrically arranged on the left and on the right, the wabble mechanism (3) is positioned between the two rubber rollers; and the wabbler mechanism (3) consists of a screw (31), a bearing cover (32), a sealing ring (33), an antifriction bearing (34), an inner sleeve (35), a center sleeve (36), an outer sleeve (37), a cylindrical pin (38) and a central pendulum shaft (39). In the novel automatic aligning roller, as a key movement mechanism is concentrated in the wabbler mechanism, and due to the action of the seal ring and the rubber sleeve, the dust-proof and the water-proof effects are more reliable. So that the automatic aligning roller can be used in occasions with severe environment; requirements of different specifications of the belt conveyer can be met by only changing the rubber rollers; and the wabbler mechanism is convenient to maintain, replace and organize production.

The invention discloses a hydraulic oil cylinder which comprises a rod cavity end closure, a cylinder barrel, a piston rod, a piston and a rodless cavity end closure, wherein the inner chamber of the hydraulic cylinder barrel is divided into a rod cavity and a rodless cavity by the piston rod and the piston; the piston rod is provided with a buffering sleeve which comprises a first buffering sleeve and/or a second buffering sleeve; the buffering sleeve can slide along the axial direction of the piston rod; an axial throttling oil passage is arranged between the buffering sleeve and the piston rod; the first buffering sleeve is provided with a sealing end surface; a sealing end surface is arranged on the rod cavity end closure; hydraulic oil in the rod cavity is discharged to an oil passage through the throttling oil passage; the end surface of the second buffering sleeve is in contact with the sealing end surface of the rodless cavity end closure to form a sealing; and the hydraulic oil in the rodless cavity is discharged to the oil passage through the throttling oil passage. The invention provides a buffering mechanism of the hydraulic oil cylinder; and the buffering mechanism has longer service life, has lower requirement on the accuracy of manufacturing and is convenient for organizing production.

The invention discloses a rolling forming method for a 5CrNiMo steel thin-wall ring, which is used for rolling and forming a thin-wall ring with high dimensional precision and good texture and properties. In the technical scheme of the method, a 5CrNiMo steel pre-rolled compact heated to a deformation temperature and a preheated following-up die sleeve are firstly sleeved into a ring rolling mill, the following-up die sleeve is sleeved into the pre-rolled compact, and the two workpieces are positioned through a main roller, a core roller, a holding roller, an upper cone roller and a lower cone roller of the ring rolling mill; the ring rolling mill is started again, the core roller of the ring rolling mill does a feed motion toward the direction of the main roller along a radial direction, and the core roller and the main roller roll the pre-rolled compact with rolling force of 180KN-3800KN under the support of the following-up die sleeve together so that the pre-rolled compact is broadened along the radial direction at the speed of 6mm/s-12mm/s, and the wall thickness of the pre-rolled compact is gradually decreased; and the pre-rolled compact is rolled into a thin-wall ring after the deformation reaches 30%-50%. The minimum of the wall thickness of the 5CrNiMo steel thin-wall ring rolled and formed by adopting the method is 25mm, and the maximum of the depth to thickness ratio is 25mm. The ring is mainly used for rotor parts used in the field of special vehicles, and the like.

The invention discloses weather-resistant steel for a hot-rolled container with the width of 450 MPa and a manufacturing method of the weather-resistant steel. The steel contains 0.048%-0.065% of C, 0.61%-0.70% of Si, 0.35%-0.45% of Mn, 0.075%-0.085% of P, smaller than or equal to 0.006% of S, smaller than or equal to 0.040% of Al, 0.20%-0.29% of Cr, 0.11%-0.19% of Cu, 0.035%-0.050% of Ti, 0.010%-0.025% of RE, smaller than or equal to 0.004% of N and the balance iron and inevitable impurities. The outlet temperature of a soaking section of the casting blank is 1278-1298 DEG C, the heat preservation time of the soaking section is 23-37 min, and the total in-furnace time is smaller than or equal to 170 min; the rough rolling outlet temperature is larger than or equal to 1100 DEG C, the finish rolling initial rolling temperature is 1075-1093 DEG C, the finish rolling final rolling temperature is 915-938 DEG C, cooling is conducted to 646-665 DEG C at the cooling speed of 31-41 DEG C/s, coiling is conducted, the leveling force is 4500-5500 KN, and the roll bending force is 10-20 KN.The straightness of the steel strip is smaller than or equal to 3 mm/m. good corrosion resistance is achieved.