240results about How to "Reduced risk of deformation" patented technology

An ice-cream container pack that forms a replaceable cartridge in an associated dispensing machine, said pack comprising a cylindrical body fitted with a nozzle and a plunger which, when operated by the piston of said machine, dispenses the ice cream from the pack via said nozzle, said pack being characterized in that the bottom edge (8) of the cylindrical body wall (1) is directly attached to the end wall (5), said end wall being in the form of a truncated cone, the smaller and free base of which houses the extrusion nozzle (7), whereby a part of the end wall (5) constitutes the support base for the pack on the support (4′) with which said dispensing machine is provided.

The invention relates to a polyamide composition with high dimensional stability and a preparation method thereof. The polyamide composition comprises the following components in parts by weight: 60 to 90 of fatty polyamide composition, 2 to 10 of compatilizer, 1 to 10 of inorganic metal compound, 0 to 5 of polysiloxane with low molecular weight and 0 to 2 of auxiliary agent. The preparation method comprises the following steps of: premixing the raw materials in a high-speed mixer for 10 to 30min, controlling the temperature to be 40 to 60 DEG C, then adding premix into a double-screw extruder, conveying, melting, shearing, extruding, cooling and granulating so as to prepare a polyamide composition product with high dimensional stability. Compared with the prior art, the invention shows excellent dimensional stability and heat distortion temperature with high retention rate, is suitable for occasions with higher requirement to the dimensional stability, such as the panel of the air conditioner of an automobile, an instrument panel, a camera bracket, a sports apparatus and the like, and can be directly processed by injection molding or other forming methods.

In a semiconductor apparatus, a semiconductor module containing semiconductor elements is enclosed between a pair of heat sinks which are held attached together by spring clips. Each heat sink has one side thermally coupled to a corresponding main face of the semiconductor module and has an array of primary fins and a pair of secondary fin protruding from the other side, with the secondary fins being located at opposing ends of the array of primary fins, beyond the outermost primary fins. At least part of each secondary fin is made thicker than each primary fin, to provide greater strength and greater thermal mass for each secondary fin than each primary fin.

A process for preparing molybdenum part with high size precision and compactness includes preparing adhesive from paraffin wax, high-density polyethene, polypropene and stearic acid through proportionally mixing, mixing it with molybdenum powder, injection moulding, degreasing, presintering, sintering, holding the temp for 1-10 hr, and post treating.

The invention relates to the technical field of construction, and aims to provide a construction method for manufacturing a box type column and beam. The construction method can effectively reduce welding deformation and reduce the later correction cost. According to the technical scheme adopted in the method, the construction method for manufacturing the box type column and beam comprises the steps of A, marking off, B, marking out, C, discharging, D, groove machining, E, body assembling, F, end plate assembling and G, rust removing and painting. According to the construction method, throughthe reasonable welding sequence and welding manner, deformation is effectively reduced, the later correction cost is reduced, and the economic benefits are improved.

The invention discloses a 3D printing material, made by mixing component A and component B in a mass ratio of 1:(1-2), wherein the component A includes, by mass, 80-100 parts of composite plastic, 50-70 parts of modified phenolic resin, 8-15 parts of nano titanium dioxide, 20-25 parts of polytetrafluoroethylene, 10-13 parts of a nano pigment, 3-6 parts of polyether sulfone, 6-10 parts of a nano metal material, 4-5 parts of polyisocyanates, 2-4 parts of a stabilizer, 3-5 parts of a thickener, 6-8 parts of a color fixing agent, and 2-3 parts of a quick setting agent; the component B includes, bymass, 50-60 parts of polylactic acid, 15-20 parts of nano silica, 13-18 parts of tributyl acetocitrate, 10-15 parts of nano calcium carbonate, 1-2 parts of rosin, 8-13 parts of barium sulfate, 15-22parts of graphite micro powder, 20-30 parts of butanediol adipate-butylene terephthalate copolymer, 15-25 parts of modified gypsum powder, 2-4 parts of barium metaborate and 3-5 parts of a plasticizer.

The invention discloses a double-layer vertical conveyor, a double-layer sorting system and a sorting method thereof. The double-layer vertical conveyor comprises a first annular rail and a second annular rail which are consistent in shape and area, wherein axes of the first rail and the second rail are parallel to a horizontal plane, and the axes of the first rail and the second rail are equallyin height and are arranged at an interval; at least one loading device is arranged on each of the first rail and the second rail and can move along the first rail and the second rail, and the upper surface of the loading device is kept in an upward state during moving. According to the abovementioned scheme, the double-layer vertical conveyor has the advantages that two rails which are not coaxialto each other are adopted; single-point connection and the position of a connection point of the loading device and a moving part in the rails are designed, so that the surface of the loading deviceis kept in an upward state all the time, and an object on the loading device cannot fall off in the whole moving process; a turning area and the loading device in a lower layer rail area can be fullyutilized to realize sorting, so that the sorting efficiency is improved; and meanwhile, the arrangement flexibility of a feeding line, a sorting port and other equipment can be improved.

The invention discloses a water pressure testing method and a device of a ultraheavy and ultralarge compressor shell, and belongs to the technical field of space division. The water pressure testing device of the ultraheavy and ultralarge compressor shell comprises a support mechanism contacted with a first shell, a pressure testing mechanism arranged in the first shell, a cavity separation tool flange for dividing the first shell into a low-pressure cavity and a high-pressure cavity, a thin position of the first shell located in the low-pressure cavity, a water passing mechanism connected with the first shell, and a water feeding mechanism communicated with the low-pressure cavity and the high-pressure cavity through the water passing mechanism. The water pressure testing method and the device of the ultraheavy and ultralarge compressor shell reduce the shell deformation risk, smoothly once finish the water pressure test, and save the cost, the time and the labors.

The invention relates to the technical field of building projects, and particularly designs a steel plate pile surrounding purlin support system and a foundation pit construction method adopting the support system. The steel plate pile surrounding purlin support system comprises a plurality of steel plate piles. The steel plate piles are sequentially connected to form a steel plate pile wall for supporting the side wall of a foundation pit. The inner wall of the steel plate pile wall is further provided with at least one inner supporting assembly for providing support for the steel plate pilewall in the horizontal direction. According to the steel plate pile surrounding purlin support system, the multiple steel plate piles are connected to form the steel plate pile wall for supporting theside wall of the foundation pit, meanwhile, the inner wall of the steel plate pile wall is further provided with the inner supporting assembly for providing support for the steel plate pile wall in the horizontal direction, accordingly, the reliability of supporting of the side wall of the foundation pit through the steel plate pile wall is greatly improved, so that even when the steel plate piles penetrate through a plurality of soil layers, the reliable support can still be provided.

The invention relates to a lightweight hot forming die of a special-shaped curved aluminum alloy thin-wall part and a design method thereof. The die comprises a male die (1), a female die (2), positioning plates (3) and lifting lugs (4), wherein the bottom surface of the male die (1) is a forming molded surface which protrudes outwards, and the amplification coefficient of the forming molded surface on the basis of the molded surface of a workblank is determined according to the hot forming temperature requirement; a forming groove is formed in the top surface of the female die (2), and the amplification coefficient of the profile of the forming groove on the basis of the molded surface of the workblank is determined according to the hot forming temperature requirement; the positioning plates (3) are located in the middle of the both sides of the female die (2); and the lifting lugs (4) are respectively distributed on the side surfaces of the male die (1) and the female die (2). According to the lightweight hot forming die, precise hot forming of the special-shaped curved aluminum alloy thin-wall part can be effectively guaranteed, and the special-shaped curved aluminum alloy thin-wall part formed by the die has the advantages of stable quality, high dimensional accuracy, profile accuracy and surface quality, short forming cycle and high production efficiency.

The invention discloses a machining method for circumferential efficient milling deformation control. The machining method adopts a layered milling mode for machining. In the machining process, the cutter center numerically-controlling process comprises the following steps that (1) a numerically-controlled machine tool is started, and a cutter center numerically-controlling main procedure is operated; (2) a rough machining procedure is called, after the rough machining procedure completes last cut of machining cutting, the procedure is suspended, and the machine tool stops operating; (3) the sizes of parts are measured, and the cutter radius compensation value is adjusted according to the measured result; (4) the procedures are executed again, the machine tool operates, and a fine machining procedure is called; and (5) part machining is finished. According to the machining method for circumferential efficient milling deformation control, the intervention degree of an operator is reduced, layered milling is adopted, cutting force is reduced, the part deformation risk is reduced, free change of the cutter length makes abrasion of a cutter be uniform, and the precision of the profiletolerance is improved.

The invention discloses a tubular pile end-plate-free and pulling resistant functional assembly. The tubular pile end-plate-free and pulling resistant functional assembly comprises short nuts, locking clamps, a long nut, a snap spring and a connecting bolt. The locking clamps include the first locking clamp and the second locking clamp. Each locking clamp is a cylinder provided with a cylindrical face with the inclination taper. Each short nut is a hollow cylinder. First internal threads are arranged at the large-opening end of each short nut, and the taper matched with the first locking clamp is arranged at the small-opening end of the short nut. The long nut is also a hollow cylinder. A first snap spring groove is formed in the large-opening end of the long nut, and the taper matched with the second locking clamp is arranged at the small-opening end of the long nut. Second internal threads matched with a tension screw are arranged in the middle of the long nut. One end of the connecting bolt is provided with bolt threads matched with the first internal threads, and the other end of the connecting bolt is provided with a second snap spring groove. The snap spring is arranged between the first snap spring groove and the second snap spring groove. The tubular pile end-plate-free and pulling resistant functional assembly is low in production cost.

An optical carriage of scanner has a mirror assembly and a device assembly, the mirror assembly has a mirror mount, some mirror holder, and some supporters, and the device assembly has a chassis. In this invention, the mirror assembly and the device assembly are mechanically connected after separately formation. Further, to ensure correct shape of these mirror holders and these supporters, they could be formed by metal punch, plastic ejection, or plastic process.

A method for eliminating residual stress of a titanium part subjected to powerful spinning deformation comprises the following steps that 1, the titanium part subjected to spinning is placed in a heat treatment furnace, the temperature is increased to the target temperature of 530-560 DEG C at the heating speed of 10-52 DEG C/min, and the heat preservation time is 60-100 min; and 2, after heat preservation is conducted, cooling is conducted to 380-410 DEG C in a furnace cooling manner, and then discharging and air cooling are conducted to the room temperature. According to the process, the residual internal stress of the TA1 part after the powerful spinning deformation can be eliminated, so that the risk of deformation of a thin-walled cylinder part due to the release of the residual stress in the subsequent machining process is reduced, and the microstructure excellence and the use performance of the material are improved.

The invention discloses an outside-pit rescue emergency well construction method, and relates to the technical field of infrastructure construction. The technical aim of foundation pit emergency rescue can be achieved. The method comprises the steps that a protection casing is tripped in a well hole, and the protection casing is used for forming supporting on the wall of the well hole; an emergency well tube is tripped into the protection casing, the middle tube segment of the emergency well tube is a dual-layer filter tube internally containing filter materials, and the upper tube segment andthe lower tube segment are waterproof solid tubes; the filter materials are backfilled into the annular space between the emergency well tube and the protection casing, and the top face of the backfilled filter materials is higher than the middle tube segment of the emergency well tube; the protection casing is lifted to the position which is higher than the middle tube segment of the emergency well tube and lower than the top face of the backfilled filter materials; a fixing clamp is used for fixing a well opening of the emergency well tube and the protection casing; and rescue water drawingcan be implemented; after emergency rescue is finished, the emergency well tube, and the protection casing are sequentially drawn out upwards; and the backfilled clay is used for filling and levelingup the well hole. The method can achieve rapid well sinking and rapid recycling.

The present invention relates to the field of side slope or slope stabilization treatment, and discloses a treatment method suitable for roadbed slope body collapse. The method comprises the followingsteps of: S1, stepped downloading; S2, grouting of steel flower tubes; S3, addition of a reinforced slide-resistant pile; S4, surface and underground intercepting drainage; and S5, slope treatment. The treatment method suitable for roadbed slope body collapse is suitable for reinforcing treatment in a later remediation mode for the roadbed slope body which generates slippage deformation and an inclined slide-resistant pile so as to effectively avoid further deformation treatment of the high and steep road roadbed slope body, is obvious in treatment effect, does not need extra land acquisition, is less in occupation of land, reduces land acquisition cost and related removal expense and is low in treatment cost.