851 results about "Metal mold" patented technology

The invention discloses an aluminum alloy metal mold low-pressure casting defect detection method, and relates to the technical field of alloy casting, and the method comprises the following steps: extracting a feature vector of a pre-processed prior defect picture and a feature vector of a pre-processed casting image, respectively calculating the similarity between the current feature vector and different reference feature vectors, and calculating the similarity between the current feature vector and the different reference feature vectors; and counting the occurrence frequency of the current defect, generating a casting decision, training a machine learning model for feeding back the current defect, and testing the machine learning model. The product quality and the production efficiency are improved through similarity calculation of the feature vectors and training of the machine learning model, manual intervention and errors are reduced by using the machine learning model and automatic decision generation, the defect detection and defect processing speed is increased, and the casting decision through statistics and weight calculation is more accurate. The importance and frequency of different defect types can be reflected more accurately, and a more effective quality management strategy can be formulated.

The invention relates to the field of metal mold casting, in particular to a multi-conjoined shell pouring system and a mold, the pouring system comprises a horizontal runner, at least one straight runner arranged below the horizontal runner and at least two vertical runners arranged above the horizontal runner, the vertical runners are mutually independent, and the vertical runners are mutually independent. The axis of the vertical cross gate is concentric with the center of a casting bottom flange and leads to a casting inner cavity, the casting bottom flange inner cavity is provided with a bottom flange ingate, the bottom flange ingate is communicated with the vertical cross gate, the end flange cross gate is cylindrical, the axis of the end flange cross gate coincides with the axis of a barrel, one end of the end flange cross gate is communicated with the vertical cross gate, and the other end of the end flange cross gate exceeds the flange end face. A plurality of end flange ingates are arranged in inner cavities of the flanges at the two ends of the casting barrel and communicated with the end flange cross gates. The pouring system ensures that a molten aluminum mold filling temperature field is uniform and solidification feeding is good, and the inherent quality of produced castings is good. The mould is prevented from being scalded; and in the mold closing and pouring processes, the problem that the sand sleeve slides out to cause the casting to be lack of meat is avoided.

The invention provides a mold for forming a thermosetting resin matrix composite reinforcing rib and a preparation method of the reinforcing rib. A groove is formed; the mold convex block is arranged in the groove; the mold set is located above the mold protruding block and provided with an inner cavity with an opening in the bottom, and the inner cavity and the upper surface of the mold protruding block are spliced to define a mold cavity suitable for reinforcing rib forming; the first pressing block is located on one side of the mold set and the mold protruding block, the second pressing block is located on the other side of the mold set and the mold protruding block, the pressing blocks can be inserted into gaps between the grooves and the mold protruding block, and the pressing blocks apply pressure to the side face of the mold set through the effect of the grooves on the pressing blocks; the groove has a dip angle at the top edge of the pressing block insertion part; and the pressing block, the mold convex block and the mold group are fixed through fasteners. According to the mold and the preparation method, the metal mold is used for multi-dimensional pressurization and mold closing net size forming, the produced reinforcing rib structure is good in size stability, the production cost of the reinforcing rib structure is reduced, and the production efficiency of products is improved.

The invention relates to the technical field of casting molds, and discloses a large GIS shell metal mold low-pressure casting mold which comprises an equipment fixing lower mold plate, a pressing mechanism, a mold body, an equipment movable upper mold plate, a movable mold plate and a casting system. The mold body is fixedly connected to the middle of the upper surface of the equipment fixing lower mold plate, the movable mold plate is installed on the upper surface of the mold body, a pouring gate is formed in the center of the lower surface of the equipment fixing lower mold plate, and the inner surface of the pouring gate is sleeved with a sprue bush. The movable mold plate comprises an equipment movable left mold plate and an equipment movable right mold plate which are oppositely arranged, a sand core is arranged in the mold main body, the casting system is arranged in the sand core, and the equipment movable upper mold plate is mounted on the upper surface of the mold main body; through cooperation of the structures, pressurization feeding can be conducted from the bottom, cooling of castings can be accelerated through metal outer mold inner cavity sand core low-pressure casting, and the technological yield of products is increased.

The present disclosure relates to embodiments of a method for manufacturing a ceramic material comprising the steps of (a) homogenizing aluminum oxide, niobium pentoxide and solvent; (b) ultrasonicating the blend obtained in step (a); (c) adding an aliquot of the prepared suspension to the empty cavity of a mold, particularly between the polymeric mold and the metal mold; (d) immersing the mold into a coolant liquid-containing bath for sufficient time to ensure that all parts are completely frozen; (e) removing the ceramic body from the mold; (f) removing the solidified phase by means of sublimation hence obtaining a green tube; and (g) sintering the green tube, so as to obtain a solid structure. The present disclosure further relates to embodiments of a ceramic material and its use to manufacture a microfiltration membrane and / or a membrane support for fluid separation.

The invention relates to a casting method of an isothermal quenching nodular cast iron subway wheel, and belongs to the technical field of casting. Comprising the steps of manufacturing a subway wheel casting mold; the method comprises the following steps: firstly, manufacturing a subway wheel metal mold comprising a pouring system, and placing a graphite block and a heating and insulating riser at a mold position corresponding to a large-thickness part of a subway wheel casting or a high-structure-compactness part of the wheel casting; then, an iron mold, graphite and precoated sand composite subway wheel pouring mold is manufactured through a core making machine; proportioning the components of the casting liquid and smelting the components; the smelted pouring liquid is subjected to a spheroidizing inoculation reaction, after the spheroidizing inoculation reaction is completed, the temperature is controlled, pouring is conducted on the manufactured pouring mold, and stream inoculation is adopted in the pouring process; and after pouring is completed, isothermal quenching post-treatment is conducted on the subway wheel casting. According to the casting technology, the solidification process of the casting is controlled to be sequential solidification, it is guaranteed that no isolated hot spot exists in the solidification process of the casting, and the quality of the casting with high internal density is obtained.

The utility model relates to a hollow closed sealing rubber mat mold system. Products produced by an existing die of a sealing rubber mat of a hollow closed structure are low in qualified rate of appearance quality and size, and a die core cannot be positioned. The mold comprises a sealing rubber mat semi-finished product mold and a sealing rubber mat finished product mold, the sealing rubber mat semi-finished product mold comprises a semi-finished product upper mold, a semi-finished product middle mold, a metal mold core and a semi-finished product lower mold, and a plurality of positioning columns for positioning the metal mold core are arranged on the semi-finished product lower mold; the sealing rubber mat finished product mold comprises a finished product upper mold, a finished product middle mold and a finished product lower mold, and a plurality of sealing rubber mat hole site marks are arranged on the finished product lower mold; cloth clamping grooves are formed in the sealing rubber mat semi-finished product mold and the sealing rubber mat finished product mold. According to the utility model, the metal mold core is positioned through the positioning column, so that the metal mold core is not easy to deviate, and redundant fabric is clamped and fixed by adopting the cloth clamping space, so that the appearance quality of a product is improved.

The invention discloses a casting ball production line metal mold preheating device for high-quality copper casting manufacturing, and relates to the field of casting manufacturing, the casting ball production line metal mold preheating device comprises a mold, a heat exchange mechanism, a heat pipe, a cold pipe and a cold and hot switching conveying mechanism; the device has the advantages of being reasonable and simple in structure, low in production cost and convenient to install, efficient circulating preheating of hot liquid is achieved through cooperative operation of the conveying pump, the heat pipe, the cold pipe and other components, the hot liquid fully exchanges heat with the mold in the heat exchange annular groove through the spiral flow guide pieces, and the preheating efficiency is greatly improved; the valve element is driven by the oil cylinder to move to achieve cold and hot passage switching, the function switching from preheating to cooling of the mold can be rapidly completed, the smoothness of the production process is guaranteed, and the production period is shortened; in the cooling process, cold liquid can flow back to the hot liquid cavity after absorbing heat of the mold, cyclic utilization of the cooling liquid is achieved, energy waste is effectively avoided, the production cost is reduced, and the resource utilization rate is increased.

The invention relates to the technical field of mold inspection, in particular to an overturning type automobile metal mold inspection device which comprises a rack, an inspection assembly is arranged at the top end of an inspection table in the rack, the inspection assembly comprises a rotary table, an upper fixing mechanism and a lower fixing mechanism, and an overturning clamp is fixed to the top end of the rotary table. An automobile metal mold to be inspected is clamped and fixed on the overturning clamp, the rotary table and the overturning clamp drive the automobile metal mold to overturn for comprehensive inspection, and the upper fixing mechanism and the lower fixing mechanism are arranged at the top and the bottom of the automobile metal mold respectively and used for fixing and inspecting the automobile metal mold. According to the automobile metal mold overturning device, the automobile metal mold is overturned in the vertical direction and the horizontal direction, the automobile metal mold is comprehensively shot and inspected by the visual inspection camera, meanwhile, in the overturning process of the automobile metal mold, when the height of the top end and the height of the bottom end of the automobile metal mold change, collision accidents of the automobile metal mold do not occur, and the production efficiency is improved. And the automobile metal mold is stably fixed, the stability is high, and the safety is high.

The present invention provides a metal molded article, a manufacturing method therefor, and an inspection device having same. The metal molded article has an overall length dimension in a longitudinal direction, an overall thickness dimension in a thickness direction perpendicular to the longitudinal direction, and an overall width dimension in a width direction perpendicular to the longitudinal direction. The metal molded article is divided into a first body region and a second body region in the thickness direction. The lateral surfaces of the first body region are provided with multiple micro-trenches that are grooves formed to be elongated in the thickness direction and arranged side by side all over the entire lateral surfaces of the first body region. The lateral surfaces of the second body region are not provided with these micro-trenches.

The invention discloses a cooling device for a metal mold for cooling glass products, and belongs to the technical field of glass product production, the cooling device comprises a floor, the top of the floor is connected with a mold closing driving assembly, and the top of the floor on the inner side of the mold closing driving assembly is connected with a self-switching cooling demolding assembly; the right end of the self-switching cooling demolding assembly is connected with an automatic communicating assembly, the mold closing driving assembly is started, the mold closing driving assembly drives the self-switching cooling demolding assembly to conduct mold closing, and at the moment, the upper part and the lower part of the self-switching cooling demolding assembly are communicated through the automatic communicating assembly; the self-switching cooling demolding assembly is automatically switched into a water supply state for cooling at the moment, the mold closing driving assembly is started when product forming is completed, the mold closing driving assembly drives the mold closing driving assembly to split the mold, and the self-switching cooling demolding assembly is automatically switched into a demolding state for automatic demolding at the moment; automatic cooling and demolding of the self-switching cooling and demolding assembly are achieved, and a driving part does not need to be additionally arranged.

The invention relates to the technical field of grinding machine machining, in particular to a multifunctional grinding machine for mold machining, which comprises a numerical control grinding machine, a connecting assembly, a grinding wheel, a protective cover and the like, the numerical control grinding machine is connected with a protective cover; a connecting assembly is arranged in the protective cover; the connecting assembly is connected with a grinding wheel; two water flowing grooves are formed in the numerical control grinding machine; a narrow surface is arranged on the grinding wheel; and a wide surface is arranged on the grinding wheel. The grinding wheel state can be changed according to the area of the grinding face of the metal mold, the installation state of the grinding wheel does not need to be manually adjusted, and the grinding face orientation of the grinding wheel is adjusted; cooling liquid is pumped into the liquid inlet pipe through the external cooling pump, the cooling liquid enters the position between the conical plate and the grinding wheel along the liquid inlet pipe and then is sprayed out of the through hole, in the process, cooling and lubricating work is conducted through the cooling liquid flowing out from inside to outside, and it is guaranteed that the grinding wheel polishing metal mold is cooled and lubricated through the cooling liquid; the service life of the grinding wheel is prolonged.

The invention provides a surface treatment method based on laser shock, and relates to the field of laser processing. The surface treatment method based on laser shock comprises the steps that a metal mold with a hollow area is placed between a to-be-treated metal sample and a restraint layer, laser beams irradiate the to-be-treated metal sample in the direction perpendicular to the restraint layer, and patterns are formed on the to-be-treated metal sample under the action of laser shock waves; wherein the energy density of the laser shock waves is smaller than 3.25 GW / cm < 2 >, the thickness of the metal mold is larger than 10 micrometers, and the pulse width of the laser shock waves is smaller than 30 ns. The laser-induced shock wave load is utilized, the surface strengthening effect and the patterning effect are introduced at the same time, the anti-deformation surface with the patterning array can be manufactured, the abrasion resistance and durability of the metal sample to be treated can be enhanced, and the problem that an existing surface patterning technology is poor in durability is effectively solved.

The invention discloses a metal mold aluminum alloy low-pressure casting device and method, and belongs to the field of low-pressure casting. The metal mold aluminum alloy low-pressure casting device comprises a base, the top of the base is fixedly connected with a crucible and a supporting column, the top of the supporting column is fixedly connected with a supporting table, the side wall of the crucible is communicated with an air injection pipe, and the top of the supporting table is fixedly connected with a bottom die; two semicircular side dies are symmetrically arranged on the front portion and the rear portion of the bottom die, an upper die is arranged on the tops of the two side dies, and a liquid rising pipe is fixedly connected to the top of the crucible; according to the invention, the problems of stress and deformation caused by overlarge temperature difference of the mold are reduced, the dimensional precision and surface smoothness of a product are maintained, the product quality is improved, the problem of cracks or deformation on the surface of the mold possibly caused by overhigh cooling speed is prevented, the service life of the mold is further prolonged, and the quality of a casting is further improved.

The invention discloses a method for manufacturing a high-wear-resistant composite swing hammer head, which comprises the following steps: washing and drying ceramic particles with an oxalic acid solution, uniformly mixing boron carbide ceramic powder and an alcohol adhesive in proportion into a slurry, and drying to remove the alcohol adhesive; then mixing the ceramic particles with NiCrBSi powder and a sodium silicate solution and filling the mixture into a honeycomb mold, taking the mixture out after microwave curing, thereby obtaining a honeycomb ceramic preform with high strength at room temperature, wherein a conical preformed hole is formed on the honeycomb ceramic preform, placing the honeycomb ceramic preform into a casting cavity of a swing hammer head metal mold, and then pouring molten high-chromium cast iron into a runner of the casting mold, wherein the high-chromium cast iron water infiltrates into gaps between ceramic preform particles under high pressure to form a reactive interface, thereby obtaining a high-wear-resistant composite swing hammer head. The method can manufacture a composite swing hammer head with a reactive interface and high wear resistance.

The invention relates to the technical field of metal materials and processing thereof, and discloses a rare earth metal reinforced 6063 aluminum alloy semi-solid casting process which comprises the following steps: S1, preparing 0.6-0.7% of magnesium; 0.5%-0.7% of silicon; 0.05%-0.1% of manganese; 0.1%-0.3% of copper; 0.05%-0.15% of titanium; 0.05% to 0.15% of zirconium; 0.1%-0.3% of rare earth elements; s2, the high-purity aluminum ingot is placed in a vacuum melting furnace to be heated until the high-purity aluminum ingot is completely melted; s3, cooling the melt to a liquid-solid two-phase region; s4, the melt subjected to semi-solid treatment is injected into a metal mold with the dynamic temperature control function; s5, the casting is subjected to staged dynamic heat treatment; and S6, leftover materials generated in the casting process are classified and screened. And the precipitation form and distribution of a strengthening phase are optimized through variable-temperature solid solution and two-stage aging processes in dynamic heat treatment, and the toughness of the material is improved.

The present invention provides a forming device and a processing method for a metal T-type connector. The forming device includes a fixed frame, and a slanted top core-pulling assembly is provided on the fixed frame. The slanted top core-pulling assembly includes a support frame, and a first transverse moving assembly and a second transverse moving assembly are symmetrically provided on both sides above the support frame; a third transverse moving assembly and a fourth transverse moving assembly are symmetrically provided on the other two sides above the support frame, and one side of the third transverse moving assembly is connected to a core-pulling part, and one side of the fourth transverse moving assembly is connected to a core-pulling part. The present invention adopts a reusable metal mold core and provides a set of production equipment used in conjunction with the mold core. The production equipment of the present invention greatly improves the efficiency of collecting products after molding by means of slanted top core-pulling, and realizes full separation of the mold core from the product, realizing semi-automatic and efficient production of T-type connectors, effectively improving the batch production process of products, reducing the production cost of enterprises, and improving the economic benefits of enterprises.

The invention provides a triple GIS shell metal mold casting mold, and relates to the technical field of casting molds, the triple GIS shell metal mold casting mold comprises a casting bottom mold part, and a sand core assembly is arranged above the casting bottom mold part; the sand core assembly is used for forming a triple GIS shell flange; a wedge block positioning piece is mounted on the casting bottom mold piece; casting mold body parts are arranged on the two sides of the sand core assembly and used for being installed on a casting machine. The exhaust flow dividing piece is adopted and matched with opening of the second electromagnetic valve, suction through an external vacuum pump can be facilitated, exhaust is promoted, and the liquid inlet efficiency is improved; the problem that an existing triple GIS shell casting mold is not convenient to automatically control to actively exhaust and prevent hollowing in the early stage of casting is solved.

The invention relates to the technical field of nodular cast iron pipe machining, in particular to a nodular cast iron pipe water-cooling metal type centrifugal machine of an electric drive system. The device comprises a fan-shaped ladle overturning system, a pouring launder, a pipe mold and a pipe drawing device which are sequentially connected, rotation of the pipe mold is controlled by a pipe mold rotating system, and the pipe mold is arranged on a pipe mold walking system so as to reciprocate between the pouring launder and the pipe drawing device through the pipe mold walking system; according to the nodular cast iron pipe water-cooling metal mold centrifugal machine of the electric driving system, the flow of the metal liquid in the first flow guide plate is sensed through the telescopic control mechanism, when the performance of the driving motor is in a normal state, the pouring runner is controlled to be in an original state, flowing intervention on the metal liquid is avoided, and the qualification rate of pipes is guaranteed. And when the performance of the driving motor is reduced, the pouring runner is automatically extended, so that the metal liquid is prevented from flowing to the ground, and meanwhile, the influence on the subsequent movement of the pipe die is also avoided.

The invention discloses a metal mold surface microlens array out-of-plane matrix cutting machining method, and belongs to the field of microlens array machining methods.The metal mold surface microlens array out-of-plane matrix cutting machining method comprises the following steps that S1, microlens array units are arranged into a matrix, and matrix recombination is conducted; s2, formulating a four-color grouping strategy; s3, performing out-of-plane cutting control according to the four-color grouping strategy formulated in S2; and S4, the machining efficiency and precision are balanced by adjusting the radial distance, the circumferential included angle and the rotating speed of a main shaft of the cutting device. According to the metal mold surface microlens array out-of-plane matrix cutting machining method, the operation method is simple, massive calculation is not needed, adjacent microlens units are distributed to different machining groups through a matrix recombination and four-color grouping strategy, and it is ensured that unit spaces in the same group are not adjacent; in combination with out-of-plane cutting control, that is, the depth of the cutter exceeds the designed vector height, interference of a cutter path on the edge is eliminated from space and depth double dimensions, and the edge overcut problem is thoroughly solved.

The invention discloses a preparation method of a large-length-diameter-ratio thin-wall composite material tubular beam and the prepared tubular beam. The method comprises the following steps that S1, a foam core mold is prepared; s2, the foam core mold is sleeved with a tubular air bag, and vacuumizing is conducted; step S3, paving a prepreg sheet on the air bag; s4, integrally transferring the foam core mold and the air bag which are paved with the material sheets into a mold cavity of a metal mold; s5, high-pressure gas is inflated into the gas bag, and then the gas bag is sent into a drying oven to be heated, cured and formed; and S6, after curing is finished, mold opening is conducted, a product is obtained, air bag and foam core mold residues are extracted from the interior of the product, and therefore a tubular beam product is obtained. The problems that in a conventional metal male mold paving-vacuum bag forming-autoclave curing method, demolding is difficult, and due to mold deformation, the straightness of a product is out of tolerance, and the surface quality is poor are solved.

The utility model relates to the technical field of metal mold machining, and discloses a metal mold machining edge grinding device which comprises a workbench and a fixing assembly, a transverse groove is formed in the surface of the workbench, a servo motor is fixedly connected to the inner wall of one end of the transverse groove, and the output end of the servo motor is fixedly connected with a two-way lead screw through a coupler; two sliding blocks are symmetrically connected to the outer portion of the two-way lead screw in a threaded mode, a U-shaped plate is fixedly connected to the tops of the sliding blocks, a plurality of rotating rollers are rotationally connected between the upper flange and the lower flange of the U-shaped plate, and the multiple rotating rollers are jointly sleeved with a grinding belt. Compared with the prior art, the two side ends of the metal mold can be continuously ground at the same time through the grinding belts, in addition, the metal mold edge grinding device can be suitable for fine grinding of metal molds with different widths by adjusting the gap between the two grinding belts, the edge grinding efficiency and effect are improved, and high applicability is achieved.

The invention provides a water-soluble core mold material based on direct-writing forming photocuring 3D printing and a preparation method of the water-soluble core mold material. The preparation method comprises the following steps: mixing polyvinylpyrrolidone and absolute ethyl alcohol to prepare a water-soluble adhesive; fully mixing a photocuring monomer hydroxyethyl methylacrylate with a photoinitiator TPO (Thermoplastic Polyolefin) to prepare water-soluble photocuring resin; mixing the two materials, stirring with a high-speed stirrer, sequentially adding heavy calcium carbonate powder, glass beads, white carbon black and glass fiber powder in the stirring process, and fully stirring to obtain slurry; and the slurry is printed through a printer, a core mold primary blank is obtained, and the final core mold material is obtained through secondary curing. According to the water-soluble core mold material based on direct-writing forming photocuring 3D printing and the preparation method of the water-soluble core mold material, the technical problems that a traditional metal mold is difficult to design, high in manufacturing cost and low in demolding efficiency are solved, and the water-soluble core mold material which is good in rheological property, low in cost and easy to demold can be prepared.

The utility model relates to a positioning device for processing a metal mold, which is used for positioning and clamping a mold piece and comprises a processing table, a positioning device and a clamping device, and the surface of the processing table is used for placing the mold piece; the positioning piece is arranged on the machining table and is used for positioning two adjacent edges of the mold piece; the external disc is connected with the processing table; and the positioning mechanism comprises a driving structure and two groups of deflection pieces, the driving structure is connected with the external disc, the deflection pieces are rotatably connected to the external disc, and when the driving structure works, the two groups of deflection pieces move towards the mold piece in an opposite or opposite mode through the driving structure so as to position, clamp and loosen the mold piece. According to the positioning device for metal mold machining, the two sides of the mold part are positioned through the positioning part, the driving structure is used for driving the two deflection parts to deflect towards the mold part, and then the mold part can be positioned and clamped, so that the mold part can be quickly and accurately positioned and clamped.

With regard to cylinders for molding machines, it is desirable to further reduce power consumption by minimizing energy loss while preventing a reduction in the cylinder body's strength. This cylinder for a molding machine injects a molding material filling a cylinder body from the front end of a flow channel into a metal mold and comprises: the cylinder body, which has a heating area and a cooling area located downstream of the heating area; a thermal insulation element formed in the space extending from the outer circumferential side of the cylinder body in the radial direction of the cylinder body to at least the inner circumferential surface.-surface of the cylinder body, and extends rearward from a position between the area to be heated and the area to be cooled in the axial direction of the cylinder body; and a surface protection layer formed on the inner circumferential surface of the cylinder body and made of a material with high corrosion resistance and / or wear resistance, wherein the thermal insulation part is formed of a material with a relatively low thermal conductivity compared to the cylinder body and the inner circumferential surface of the cylinder body is covered with the surface protection layer or with the surface protection layer and the thermal insulation part.

The utility model relates to the technical field of mold cleaning, and discloses a metal mold cavity cleaning device which comprises a shell which is a hollow rectangular box with the bottom open. The air blowing pipe is fixedly connected to the top of the shell, and the air blowing pipe is in a hollow circular pipe shape; the air suction pipe is fixedly connected to the wall face of one side of the shell, the air suction pipe is also in a hollow circular pipe shape, and the air suction pipe and the air blowing pipe are both communicated with the interior of the cavity of the shell; and the adaptive structure can be adaptive to the top wall surfaces of different molds, the adaptive structure comprises inner limiting rods and extension plates, the inner limiting rods are symmetrically and fixedly connected in the shell cavity, the extension plates are slidably connected between every two adjacent inner limiting rods, and by arranging the adaptive structure, the interior of the mold cavity can be cleaned up when the molds with different top heights are cleaned.

The invention discloses an aerospace vehicle rapid response function composite casting mold forming method and device, and belongs to the crossing field of a sand mold 3D printing technology and an integrated die casting technology. According to the method, firstly, a numerical control machining center or sand mold 3D printing equipment is adopted for manufacturing a multi-material composite core mold, then a cut or printed sand mold / core is assembled on a core mold base in a ridge-closing mode, a servo cabin metal mold is driven to be matched with the sand mold core mold through a mold closing locking mechanism, and the whole set of die-casting mold is formed. Secondly, light alloy (magnesium, aluminum, titanium and the like) is smelted at a high temperature, the speed field and the pressure field of high-temperature molten metal mold filling are indirectly controlled by controlling the movement speed of a piston rod, and high-quality castings are obtained through crystallization and solidification under the pressure. The innovatively proposed'metal mold and sand mold 'combined die-casting die can quickly realize the dynamic heat balance of the temperature of the die. According to the aerospace vehicle rapid response function composite casting mold forming method and device, innovative and green development of a light high-strength alloy casting process is promoted.

The utility model relates to the technical field of sand blasting protection, in particular to a metal mold sand blasting protection tool which comprises two shells, a limiting assembly and a fixing assembly. The limiting assembly comprises a plurality of threaded rods, a plurality of limiting blocks and a plurality of first handles and is used for enabling the two shells to be close to each other and limiting the shells, and the effect that the protection tools are combined into a whole for protection is achieved; and the fixing assembly comprises two containing blocks, two third handles, two turbofans, a plurality of supporting rods and a plurality of fixing heads, the metal mold is fixed into the protection tool, and sand blasting work is assisted. Compared with the prior art, the problems that in the prior art, a mold needs to be frequently matched for clamp replacement, the sand blasting grinding area is small, and the efficiency is low are solved.

The invention discloses a laser cladding technology for sideline repair, which comprises the following steps: S1, positioning a broken position of a sideline under a microscope, and making a positioning mark within a 5mm range of a defect area by using a laser marking machine; s2, a metal mold matched with the curvature of the surface of the base material is manufactured; s3, aligning the center line of the opening of the mold with the broken position of the side line through a microscopic vision system; s4, under the protection of inert gas, a coaxial powder feeding device is adopted for conveying metal powder to the opening area of the mold, and rectangular spot laser is used for conducting multi-channel lap-joint cladding; s5, after the mold is removed, electrolytic polishing is conducted on the repairing area, and the conductivity and insulativity of the repairing circuit are tested; compared with a traditional conductive silver paste coating or electrochemical deposition method, the laser cladding technology provided by the invention does not need a complex mask process, the repair efficiency is improved, and meanwhile, secondary damage to the brittle transparent substrate caused by contact type operation is reduced.

To facilitate a blur inspection of a composite member for fuel cells.SOLUTION: A composite member 1 for fuel cells comprises: a separator 2 including on a surface 2U a gasket body arrangement part 20 and a blur allowable section 21 which is disposed adjacently to the gasket body arrangement part 20; and a gasket 4 including a gasket body 40 which is disposed in the gasket body arrangement section 20. In the blur allowable section 21, the side close to the gasket body arrangement part 20 is defined as a proximate side, and the side far from the gasket body arrangement part 20 is defined as a separate side. The blur allowable section 21 includes a first groove part 210 which is recessed in a proximate side end 21a and a second groove part 211 which is recessed in a separate side end 21b.SELECTED DRAWING: Figure 3