83results about How to "Reduce the probability of deformation" patented technology

The invention discloses a mobile terminal, a shell and a manufacture method thereof. The manufacture method comprises the following steps of: S10, providing a base material, forming a gap penetrating the base material in a thickness direction on the base material, and making the base material have a first enclosing segment and a second enclosing segment for enclosing both ends of the gap; S20, removing the first enclosing segment so as to open one side of the gap; S30, embedding a fixed member from the opening side of the gap; S40, filling the gap with a filler; and S50, performing cutting so as to form the shell, and dividing the shell into a plurality of spacing regions by the gap, wherein the gap in the shell will be fully filled by the filler. According to the manufacture method of the shell of the mobile terminal, the structure intensity at the gap is enhanced by using the fixed member, the probability that the gap structure deforms in a filling process is reduced, and the product deformation is decreased and the whole intensity of products is ensured. Thus the defective rate of the products is reduced, and furthermore the product quality is improved and the production cost is reduced.

The invention relates to a method for preparing a low-deformation polyurethane damping bumper block. The method is used for solving the technical problem in the prior art that the deformation rate is high after the polyurethane bumper block for an automobile is subjected to dynamic fatigue, and is used for improving the safety and comfort of the bumper block in a continuous working environment. The method comprises the processing steps: (1) pretreating isocyanate; (2) preparing a prepolymer; (3) preparing a chain extender; (4) blending; (5) carrying out cast molding; (6) carrying out post-vulcanization. The prepared low-deformation polyurethane damping bumper block has the advantage that the deformation rate of the fatigued bumper block is lowered on the premise that the dynamic fatigue performance and comprehensive performance of the bumper block are maintained. According to the method disclosed by the invention, modified MDI and macromolecular and polyfunctional ether polyalcohol are adopted to react, and a microporous elastomer material, of which both hard segment phase and soft segment phase contain certain chemical crosslinking, is prepared, so that the requirements of current medium- and high-end automobiles on bumper blocks which have low deformation after dynamic fatigue are met.

The invention discloses a durable die guide pillar comprising a first guide pillar rod, a second guide pillar rod, a first magnet and a second magnet. The first guide pillar rod is connected with the second guide pillar rod; the first magnet is connected with the bottom end of the first guide pillar rod; the second magnet is connected with the bottom surface of the inner end of the second guide pillar rod; a sliding rib groove is formed in the side face of the inner end of the second guide pillar rod; and a stopper is arranged at the top end of the sliding rib groove. By the means, the durable die guide pillar has a buffer capacity in use, so that probability of deformation of the durable die guide pillar is lowered, and service life of the durable die guide pillar is prolonged.

The invention discloses a novel buffer pad which sequentially comprises a surface layer, a first thick cloth layer, a first thin cloth layer, a second thick cloth layer, a second thin cloth layer, a third thick cloth layer, a third thin cloth layer, a fourth thick cloth layer, a fourth thin cloth layer, a fifth thick cloth layer, a fifth thin cloth layer and a sixth thick cloth layer from top to bottom, wherein the surface layer comprises a polytetrafluoroethylene layer, a glass fiber cloth layer and a fluorine rubber layer containing pores in the fluorine rubber layer; the first thick cloth layer is prepared by dipping glass fiber cloth into liquid fluororubber and curing the glass fiber cloth; and the first thin cloth layer is made of fluororubber with air holes inside. The novel bufferpad is composed of the glass fibers and the fluororubber containing the air holes, has the outstanding advantages of being excellent in buffering performance, good in heat resistance (capable of beingused for a long time at the high temperature of 240 DEG C), low in deformation rate and the like, and is a high-performance buffer pad material superior to a traditional pressing pad and kraft paper.

The invention provides a production process for a stainless steel clamping and pressing type pipe fitting equal-diameter tee joint , and relates to the technical field of pipe fitting production processes. The production process for the stainless steel clamping and pressing type pipe fitting equal-diameter tee joint comprises the following steps of S1, feeding, laser cutting and chamfering; S2, water swelling forming; S3, punching; S4, high-frequency heating; S5, drawing; S6, opening flattening; S7, pipe fitting cleaning; S8, bright solution annealing; S9, polishing and grinding; S10, sealing ring mounting and S11, pipe fitting testing. According to the production process for the stainless steel clamping and pressing type pipe fitting equal-diameter tee joint, different temperatures are each kept for a period of time, so that different elements can be well distributed at the different temperatures. During annealing, double media are used for rapid cooling, the annealing effect is better, the hardness and stress of a material pipe are reduced, and the deformation rate and the reject ratio of produced rusted steel clamping and pressing type pipe fittings are reduced.

The invention relates to the technical field of data transmission parts. The invention discloses a connector for automobile data transmission. The connector comprises a male head and a female head, the male head comprises a male shell and a PIN terminal arranged in the male shell, the female head comprises a female shell and a port arranged in the female shell and matched with the PIN terminal inan inserted mode, guide pieces are symmetrically arranged on the two opposite sides of the female shell, and the guide pieces are connected with the female shell in a sliding mode in the inserting andpulling direction of the female shell; a connecting part is arranged at one end, facing the male shell, of the guide pieces, and a mounting part connected with the connecting part is arranged on oneside, facing the female shell; and an unlocking structure for unlocking the connecting part and the mounting part is also arranged on the female shell. Through the arrangement of the guide pieces, themale head and the female head can move along the direction of the guide pieces during plugging and unplugging, the probability of deformation of the PIN terminal under the action of external force isreduced, and meanwhile, the male head and the female head are convenient to plug.

The invention relates to engine oil-resistant low-pressure-change addition type liquid fluorosilicone rubber and a preparation method thereof. The engine oil-resistant low-pressure-change addition type liquid fluorosilicone rubber comprises the following components in parts by weight: 100 parts of fluorosilicone base rubber; 10 to 20 parts of fumed silica; 10-20 parts of precipitated white carbon black; 1-3 parts of hydroxyl fluorosilicone oil; 2 to 5 parts of trifluoropropyl methyl cyclosilazane; 0.1 to 0.3 part of divinyl tetramethyl disilazane; 1-3 parts of distilled water; 0.1 to 0.3 part of a heat-resistant additive; 1.3 to 2.9 parts of a cross-linking agent; 0.3 to 0.6 part of a platinum catalyst; and 0.05 to 0.2 part of an inhibitor. According to the preparation method, fluorosilicone treating agents such as low-molecular-weight hydroxyl fluorosilicone oil and trifluoropropyl methyl cyclosilazane are used, the fumed silica and the precipitated silica are compounded to achieve a synergistic effect, and the specific cross-linking agent and the preparation method are matched, so that the compression set of the addition type liquid fluorosilicone rubber is greatly reduced, and the service life of the addition type liquid fluorosilicone rubber is prolonged. Even if the lubricating oil is soaked in high-temperature engine oil for a long time, the system cannot be damaged, the lower deformation rate can still be kept, and the oil pressure change resistance is very excellent.

The invention discloses a laser, and belongs to the technical field of photoelectricity. The laser comprises a bottom plate, a frame body, a plurality of light-emitting assemblies, a cover plate and a light-transmitting sealing layer; the frame body is arranged on the bottom plate in a surrounding mode and forms a containing space, and the light-emitting assemblies are all located in the containing space and fixed to the bottom plate; the frame body is in a thin plate shape, the upper portion of the frame body is folded outwards to form a first folded edge, and the first folded edge is fixed to the outer edge area of the cover plate; the light-transmitting sealing layer is fixed with the inner edge area of the cover plate and covers the opening of the cover plate; and the lower portion of the frame body is folded inwards or outwards to form a second folded edge, and the second folded edge is fixedly connected with the bottom plate. The assembly difficulty of the laser can be reduced, and the light emitting effect of the laser can be ensured.

The invention discloses a high-feldspar ceramic blank material, a preparation method thereof, and a method for preparing ceramic products by using the same, belonging to the technical field of ceramics. The high-feldspar ceramic body material includes a base material and additives, and the preparation method of the high-feldspar ceramic body material includes the following steps: material preparation, ball milling, dehydration, vacuum mud refining and aging, and the high-feldspar ceramic body material is used. The method for preparing a ceramic product from a green body material includes the following steps: forming, glazing and firing. The raw materials of the invention are easy to obtain, moderate in price, high in product strength, strong in anti-deformation performance, and strong in thermal stability. sustainable development.

The invention provides a character skeleton extraction method and device, equipment and a computer readable storage medium. The method comprises the following steps: extracting an initial character skeleton of to-be-processed character library data; comparing the initial character skeleton with a preset reference character skeleton, and determining stroke order information of the initial characterskeleton; vectorizing the initial character skeleton at least containing the stroke order information to generate a final character skeleton of the font library data. The scheme solves the problems in the prior art that the skeleton of the stroke cross position cannot be ensured to follow the character writing rule due to the fact that the font library data does not have stroke cross informationis solved, and the bifurcation in the character skeleton can be basically eliminated, so that the stroke cross position deformation rate is reduced, the stroke order information of the character skeleton is recovered, and the character skeleton extraction efficiency is improved.

The invention discloses an alloy steel forged steel round bar for a heavy-duty gear, solves the problems of a large deformation rate and poor mechanical property of carburizing and quenching and relates to the field of alloy. The alloy steel forged steel round bar is prepared from the ingredients in mass percent: 0.33 to 0.38% of C, 0.55 to 0.80% of Mn, 0.15 to 0.35% of Si, smaller than or equal to 0.015% of P, smaller than or equal to 0.015% of S, 1.50 to 1.70% of Cr, 1.50 to 1.70% of Ni, 0.23 to 0.30% of Mo, 0.020 to 0.040% of Al, smaller than or equal to 0.20% of Cu, smaller than or equal to 0.05% of V and the balance of Fe and unavoidable impurities. The alloy steel forged steel round bar has a small deformation rate in carbonizing and quenching, the mechanical property is stronger, and the alloy steel forged steel round bar is suitable for producing gears; furthermore, the preparation method of the alloy steel forged steel round bar is more convenient and more suitable for scale production.

The invention discloses an outer guide post component for a mold. The outer guide post component comprises a body component and an auxiliary component; the body component comprises a lower die, a pedestal, a guide post, an end plate, a guide sleeve, an upper base and an upper die; the pedestal is detachably connected to the lower die and is positioned at the upper surface of the lower die; a steelball sleeve rolls in a steel ball groove formed in the outer sidewall of the guide post so that the friction force between the guide post and the inner surface of the guide sleeve is remarkably reduced, and thus the abrasion of the guide post and the guide sleeve is reduced; lubricating oil can flow into the steel ball sleeve by virtue of communication of an oil tank and the steel ball groove soas to maintain a steel inside the steel ball sleeve; the service life of the steel ball is prolonged; the problems that when the mold is assembled, the guide post does a reciprocating motion inside the guide sleeve to generate friction which results in reduction of the guidance precision of the guide post and the guide post loses a guidance function are solved; the guide post needs not to be replaced; and the production cost is lowered.

The invention relates to the technical field of gear machining equipment, and discloses a gear forming device. The gear forming device comprises a cutter fixing seat and a hob shaft rotationally connected to the cutter fixing seat, wherein a hob is detachably connected to the hob shaft, an arc-shaped plate is slidably connected to the cutter fixing seat in the radial direction of the hob shaft, the arc-shaped plate and the hob shaft are coaxially arranged, and a first elastic piece is arranged between the arc-shaped plate and the cutter fixing seat; and a cooling assembly facing the hob shaftis slidably connected to the cutter fixing seat, a connecting mechanism used for driving the cooling assembly to move along with the arc-shaped plate is connected between the cooling assembly and thearc-shaped plate, and under the transmission action of the connecting mechanism, the cooling assembly and the arc-shaped plate are the same in the radial movement trend relative to the hob shaft. According to the gear forming device, the connecting mechanism is arranged so that the distance between the cooling assembly and the hob shaft can be changed along with the change of the size of the replaced hob, and the problem that in the prior art, a cooling pipe cannot provide stable cooling for hobs with different sizes after the hob is replaced is solved.

The present invention discloses a method for preparing crisp carrot slices. The method comprises the following steps: carrot slices are subjected to an solar energy combined vacuum heat pump drying treatment, at the same time an instantaneous pulse strong magnetic field coordinated with pulsation controllable instantaneous differential pressure treatment is used, a cycle treatment is conducted, in each of a cycle, a pressure in a treatment chamber rises firstly, a temperature of materials rises instantly to be 110 DEG C-150 DEG C, the pressure in the treatment chamber then drops instantaneously, besides, in each of the cycle, when a pressure relief of the treatment chamber begins, the instantaneous pulse strong magnetic field is loaded at the same time at an intensity of 60-80 T, and then when the pressure relief of the treatment chamber is ended, the loading stops. The present invention discloses the crisp carrot slices and full nutrition carrot powder. The preparation method solves problems that oil bathed carrot products are high in an oil content, quality of the products dried by traditional hot air drying is low, a vacuum freeze-drying is high in energy consumption, a dehydration efficiency is low, etc. The prepared products are obviously improved in a preservation rate of carrot carotenoids.

The invention relates to preparation of an electron microscope sample, and provides a method for controlling deformation generated in transmission electron microscope sample preparation. The method comprises the following steps of providing an electronic component sample placed on a substrate based on a focused ion beam system, performing pre-thinning treatment, thinning the electronic component sample to a first thickness of 1.3-1.7 microns, conducting first thinning treatment, thinning the electronic component sample to a second thickness at a tilt angle of +/-(0.5 degrees to 1.5 degrees) and a first diaphragm hole, the second thickness being 700 nanometers to 900 nanometers, conducting second thinning treatment, thinning the electronic component sample to a third thickness of 250-350 nanometers according to the tilt angle and a second diaphragm hole, and conducting a third thinning process of thinning the electronic component sample to a fourth thickness of less than or equal to 100nanometers according to the tilt angle and a third diaphragm hole, the first diaphragm hole being larger than the second diaphragm hole, and the second diaphragm hole being larger than the third diaphragm hole.

The invention relates to the technical field of dies, and discloses a forging die for a formed hub. The forging die comprises an upper die and a lower die, the lower die comprises a lower die plate, a lower die core installed on the lower die plate and a lower die body fixedly connected to the lower die core in a sleeving mode, the upper die comprises an upper die plate and an upper die core located over the lower die core, a forging cavity is formed among the upper die core, the lower die core and the lower die body during die assembly, the lower die body comprises at least two die body assemblies which can be far away from the lower die core or form a circular closed ring to be attached to the outside of the lower die core after being attached to each other, the die body assemblies get close to each other or get away from each other under the control of a first driving mechanism, a tightening ferrule clamped outside the attached die body assembly during die closing is vertically arranged on the upper die plate in a lifting mode, and lifting of the tightening ferrule is controlled by a second driving mechanism fixed to the upper die plate. The die remarkably improves demolding convenience after hub forging, raw material waste caused in the forging stage is remarkably reduced, and subsequent blank spinning procedures are reduced, so that the production cost of the hub is remarkably reduced.