12 results about "Semi-formed" patented technology

The utility model relates to the technical field of pipeline production, in particular to a color strip pipe extrusion production tool which comprises a shell body, the interior of the shell body is hollow, a core body is sleeved on the shell body, a gap between the shell body and the core body forms a flow channel for outputting and forming conventional pipe materials, and a bent flow guide channel is arranged on the side wall of the shell body. The flow guide groove is formed in the front end of the shell body and sealed through the shell pressing plate, and the color pipe materials are conveyed into the flow guide groove through the flow guide channel to be collected, output into the flow channel through the notch in the inner side of the flow guide groove and attached to the two sides of the semi-formed material pipe, so that the color pipe materials and the material pipe are formed together, and the control force on color material lines on the outer wall of the material pipe is increased; and the mistake proofing requirement of a customer is met to the greatest extent while the efficient production of the material pipe is ensured.

The utility model discloses tent peg production equipment, and relates to the technical field of peg production, the tent peg production equipment comprises an equipment main body and a forming die, the inside of the forming die is respectively connected with a forming block and a cut-off tool, the inner wall of the forming die is connected with a spring, and one end of the spring is connected with a push block; one side of the top of the equipment main body is connected with a second roller, and the second roller is sleeved with a second gear; and one side of the equipment main body is connected with a guide plate. Through the arrangement of the second roller, the material guide plate, the blanking hole, the forming blocks and the cut-off tools, after the two forming molds are closed, raw materials are cut off through the two forming blocks to form a semi-forming part, the semi-forming part and an unformed part are cut off through the two cut-off tools to form a waste part, and after the two forming molds are separated, the waste part is cut off through the two cut-off tools. The second rolling wheel rotates to push out the semi-forming part and discharge the semi-forming part through a material guide plate, and the waste part falls downwards under the influence of gravity and penetrates through a material falling hole to be discharged; semi-finished products and waste products are automatically discharged, and continuous machining is facilitated.

This utility model relates to the field of automotive seat air-conditioning front backrest technology, specifically to a semi-sewn, semi-formed fabric applied to automotive seats. The automotive seats have complex and flat shaped areas. The semi-sewn, semi-formed fabric includes a formed fabric body and a sewn fabric body. The formed fabric body covers the complex shaped areas of the product body; the sewn fabric body covers the flat shaped areas of the product body; the formed fabric body and the sewn fabric body are fixedly connected to form an integrated structure. By clearly defining the formed fabric body for curved surfaces, irregular contours, or concave-convex structures, the fit between the product body and the seat foam is improved, ensuring the stability and sealing of the structure around the functional holes, avoiding poor ventilation due to deformation of the sewn product. This solves the technical problem that the non-woven fabric structure of the air-conditioning front backrest is generally based on flat fabric, which lacks three-dimensional forming ability. When covering complex shaped areas, it is prone to wrinkles, uneven stretching, or poor fit, leading to unstable ventilation.

The invention discloses a point switch friction material and a preparation method and application thereof, and belongs to the technical field of rail transit point switch friction materials, the preparation method comprises the following steps: adding resin, a functional filler, a lubricant, a stabilizer and rubber into a crushed fiber reinforcement, and stirring and mixing to obtain a mixture; carrying out hot-pressing curing to obtain a semi-formed material; and carrying out curing treatment to obtain the friction material of the switch machine. The fiber-reinforced resin-based composite friction material is prepared by optimizing the mass ratio of the resin, the fiber reinforcement body and other components and adopting specific hot-pressing curing and step-by-step heat preservation curing processes, and the dynamic friction coefficient of the fiber-reinforced resin-based composite friction material is 0.3-0.4; the problems that an existing switch machine copper-based friction material is large in abrasion, unstable in output torque, abnormal in sound and complex in speed reducer assembly process are effectively solved, and meanwhile the application field of the composite friction material is expanded. The friction material of the switch machine is promoted to be converted from copper-based powder metallurgy to fiber-reinforced resin-based composite, and the reliability development of a railway signal system is assisted.

The invention discloses an annular forge piece forging process method, which belongs to the technical field of annular forge piece forging, and is characterized by comprising the following steps: a, blanking: feeding raw materials into a heating furnace for heating after the raw materials are detected to be qualified; b, pre-forging is conducted, specifically, the heated blank is flatly laid on a forging die to be flattened, a pre-forging cavity is formed in the forging die, the flattened blank is put into the pre-forging cavity to be pre-forged, and an initial forge piece is preliminarily formed; c, punching: placing the annular forge piece on a compound die for punching after pre-forging, and returning the annular forge piece to a furnace for heating after removing a part of redundant metal in the middle of the wad; d, finish forging is conducted, specifically, the annular forge piece heated after remelting is put into a finish forging cavity in the forging die to be subjected to finish forging; e, trimming: trimming the forge piece by using a composite die after finish forging of the annular forge piece; and f, sand blasting and polishing are conducted, specifically, the blank obtained after finish forging is subjected to sand blasting and polishing. According to the scheme, one-heating-half forming of forgings can be achieved, the production period is shortened, the production efficiency is improved, and the quality is high.

The utility model discloses a semi-forming press-fit plate which comprises a plate to be pressed. And the covering type sheets are respectively abutted against two sides of the to-be-laminated plate, and the covering type sheets are aluminum sheets. Wherein the covering type sheet is an aluminum sheet, compared with a copper sheet, the roughness of the aluminum sheet is smaller, the aluminum sheet cannot be tightly combined with an adhesive of a to-be-laminated plate in the laminating process, the pulling resistance of the aluminum sheet is higher, the plate can be peeled off at a time after being laminated, and the plate disassembling efficiency of the semi-formed laminated plate can be improved.

The application discloses a kind of annular forgings forging process method, belongs to annular forgings forging technical field, and its technical scheme main points are as follows: a. blanking: raw material is detected after passing, is input heating furnace and is heated;B. pre-forging: the billet after heating is laid on the forging die and is flattened, and pre-forging cavity is set on the forging die, the billet after flattening is placed in pre-forging cavity and is pre-forged, and preliminary forging is formed;C. punching: after pre-forging, annular forgings is placed to composite die and is punched, and after removing the metal of the part in the middle of the skin, it is heated in the furnace;D. final forging: after heating in the furnace, annular forgings is placed in final forging cavity on the forging die and is finally forged;E. edge cutting: after final forging, composite die is used to cut the edge of the forging;F. sand blasting and polishing: the billet after final forging is sand blasted and polished.The scheme can realize the semi-forming of forging, shorten the production cycle, improve the production efficiency and have high quality.

The utility model discloses a shaping mechanism and a pressed product. The shaping mechanism comprises a containing barrel, a shaping piece, an inclined rotating shaft and a transmission assembly. The containing barrel is provided with a containing cavity, and the containing cavity is provided with a bottom wall face and an opening opposite to the bottom wall face. The oblique rotating shaft is provided with a first end and a second end which are oppositely arranged, the shaping piece is fixedly connected with the first end of the oblique rotating shaft, and the transmission assembly is in driving connection with the second end of the oblique rotating shaft and can drive the oblique rotating shaft to rotate; the rotating center line of the transmission assembly is perpendicular to the bottom wall face, and the central axis of the inclined rotating shaft and the rotating center line of the transmission assembly form a set angle, so that the rotating plane of the shaping piece and the bottom wall face form a set angle. In the rotary shaping process of the shaping piece, the distances from different parts to the bottom wall surface of the accommodating cavity are different, which is equivalent to that in the shaping process of the raw materials, the raw materials are rolled, so that the raw materials are more uniform and are in a semi-forming state, and the structure of a pressed product obtained by pressing the raw materials is uniform.

The invention discloses a preparation method of a high-strength and high-toughness aluminum nitride ceramic substrate. The preparation method comprises the following steps: step 1, premixing an additive; step 2, adding raw material powder and premixing; step 3, preparing the raw material mixture into a flaky raw material mixture; step 4, preparing a semi-formed green body; and step 5, taking out the semi-formed green body from the box-type furnace, putting the semi-formed green body into another horizontal furnace, heating the semi-formed green body in a micro-negative-pressure nitrogen environment at the temperature of 1300-1600 DEG C for 13 hours, carrying out decarburization treatment to obtain a semi-formed sheet, and then carrying out heat treatment and sintering on the semi-formed sheet in the same horizontal furnace at the temperature of 1700-1800 DEG C in nitrogen with one atmospheric pressure for 5 hours to obtain the semi-formed sheet. The sintered aluminum nitride ceramic substrate is obtained; and 6, carrying out post-section surface treatment on the aluminum nitride ceramic substrate to obtain a finished product. According to the invention, the composite additive of the zirconium oxide powder and the silicon nitride whisker powder is combined with degreasing and decarburization treatment in a nitrogen atmosphere, so that the composite additive has a remarkable effect on realizing high strength, high toughness and high thermal conductivity.

The invention discloses a shaping mechanism and a pressed product. The shaping mechanism comprises a containing barrel, a shaping piece, an inclined rotating shaft and a transmission assembly. The containing barrel is provided with a containing cavity, and the containing cavity is provided with a bottom wall face and an opening opposite to the bottom wall face. The oblique rotating shaft is provided with a first end and a second end which are oppositely arranged, the shaping piece is fixedly connected with the first end of the oblique rotating shaft, and the transmission assembly is in driving connection with the second end of the oblique rotating shaft and can drive the oblique rotating shaft to rotate; the rotating center line of the transmission assembly is perpendicular to the bottom wall face, and the central axis of the inclined rotating shaft and the rotating center line of the transmission assembly form a set angle, so that the rotating plane of the shaping piece and the bottom wall face form a set angle. In the rotary shaping process of the shaping piece, the distances from different parts to the bottom wall surface of the accommodating cavity are different, which is equivalent to that in the shaping process of the raw materials, the raw materials are rolled, so that the raw materials are more uniform and are in a semi-forming state, and the structure of a pressed product obtained by pressing the raw materials is uniform.

The invention relates to the technical field of composite materials, and particularly discloses a manufacturing method and a nondestructive testing method for out-of-plane wrinkles of a composite material. The manufacturing method of the composite material out-of-plane wrinkles comprises the following steps that a plurality of laying layers are stacked on a wrinkle forming tool with a groove, and a semi-formed piece with a protruding part is formed through vacuum compaction and solidification; and the other side, opposite to the protruding part, of the semi-formed part is placed on a supporting tool, a plurality of laying layers are stacked on the side, provided with the protruding part, of the semi-formed part, and a test piece with out-of-plane simulation wrinkles is formed through vacuum compaction curing. According to the method, an external support for deforming fibers is not introduced, so that the formed out-of-plane simulated wrinkles are closer to real out-of-plane wrinkle defects, the simulation effect is relatively good, the surface flatness is good, effective simulation of the out-of-plane wrinkle defects in the fiber composite material is realized, and during subsequent nondestructive testing, the defect of the out-of-plane wrinkle in the fiber composite material can be effectively overcome. And interference on detection signals caused by redundant supports is avoided.

The invention discloses a production method of a high-moisture-proof and waterproof ball table plate. The production method comprises the following steps: obtaining wood fibers; wood fibers, a binder and a waterproof agent are mixed and preliminarily dried, and a mixture is obtained; paving and hot-pressing the mixture to obtain a semi-formed plate; and the semi-formed plate is maintained and polished, and the ball table plate is obtained. The semi-formed plate is obtained through hot pressing of the wood fibers, the binder and the waterproof plate, then the ball table plate is obtained through maintenance and polishing, the obtained ball table plate is good in waterproof performance and can be completely used outdoors, and even if protection of an outer protection layer outside the ball table plate is lost in the using process, the ball table plate cannot be damaged. And the use performance of the table board is basically not influenced.