148 results about "Powder injection molding" patented technology

The embodiment of the invention provides an alloy anti-skid nail powder injection molding mold, and relates to the technical field of powder casting. An integrally-formed lower mold is arranged, and an anti-skid nail is taken out of a forming area in a screwing-out mode after being formed; the problem that a final product has a joint line which is difficult to remove due to the fact that the forming area is formed after the two sub-molds are closed is solved, and the product quality is improved.

A preparation method for a titanium alloy material, which preparation method relates to the field of powder injection molding. The preparation method comprises the following steps: S1, preparing a titanium alloy fine powder and a titanium alloy coarse powder, wherein the particle size of the titanium alloy fine powder is in the range of 1-20 μm, and the particle size of the titanium alloy coarse powder is in the range of 50-100 μm; mixing the titanium alloy fine powder and the titanium alloy coarse powder to form a titanium alloy mixed powder, wherein the proportion of the titanium alloy coarse powder in the titanium alloy mixed powder is 50% or above; S2, mixing the titanium alloy mixed powder and a binder to prepare a feed; S3, placing the feed in an injection molding machine, and subjecting the feed to injection molding by means of a mold to form an injection blank; S4, degreasing the injection blank to obtain a degreased blank; and S5, subjecting the degreased blank to high-vacuum sintering to obtain a sintered blank. By mixing the 50-100 μm titanium alloy coarse powder and the 1-20 μm titanium alloy fine powder according to different proportions, part of the titanium alloy coarse powder is used for replacing the titanium alloy fine powder, to reduce the amount of the titanium alloy fine powder, thereby reducing the cost of the titanium alloy powder for metal injection molding.

The invention belongs to the field of powder injection molding, and relates to a method for preparing a high-strength and high-toughness 6-series aluminum alloy through metal powder injection molding, which comprises the following steps: step 1, mixing 6-series aluminum alloy powder and a binder in a mixing mill to obtain a feed; 2, the feed is subjected to injection molding to form a green body; 3, the green body is subjected to catalytic degreasing through oxalic acid, and a brown blank is obtained; step 4, sintering the palm blank by using a vacuum degreasing sintering furnace and adopting inert gas protection negative pressure; and 5, the sintered sample is subjected to heat treatment, and a 6-series aluminum alloy product is obtained. The prepared 6-series aluminum alloy contains nano MgAl2O4 particles, the nano MgAl2O4 particles are distributed in a net shape at the grain boundary, the density of the 6-series aluminum alloy is larger than 99%, and the tensile strength of the 6-series aluminum alloy is larger than 350 Mpa.

The invention relates to a preparation method of Cr alloyed low-density steel, powder and complex parts, and the Cr alloyed low-density steel is characterized by comprising the following components in percentage by weight: 13% < = Mn < = 43%, 9% < = Al < = 15%, 0.5% < = C < = 1.5%, 4% < = Cr < = 6% and the balance of Fe; on the basis, other elements can be added for strengthening. The preparation method of the complex part comprises the following steps: preparing the powder of the low-density steel through smelting, and preparing the complex part through a powder injection molding process. The sintered blank prepared through the method is of an austenite and ferrite dual-phase structure, a small amount of k-type carbide is contained on the basis of the austenite-based dual-phase structure, the sintering density is smaller than or equal to 6.4 g / cm < 3 >, the yield strength is larger than or equal to 900 MPa, and the ductility is larger than or equal to 5%.

The invention discloses a method for preparing a large part by using a metal powder injection molding process, belongs to the technical field of large part processing, and aims to solve the technical problem that the strength of the large part prepared by metal powder injection molding in the prior art needs to be further improved. The method comprises the following steps that a reinforcing agent, paraffin and acetone are added into a reaction kettle to be stirred, the temperature of the reaction kettle is increased to 40-50 DEG C, stirring is conducted till a system is dissolved, reinforced modified liquid is obtained, metal powder is added into a high-speed mixer to be heated, and when the temperature of the metal powder reaches 100-110 DEG C, the reinforced modified liquid is slowly added into the high-speed mixer; according to the method, the ultimate tensile strength, the yield strength, the ductility and the hardness performance of an injection part are effectively improved by preparing the modified metal powder with the high flowing property and combining the modified metal powder with the bonding auxiliary agent and optimizing the injection condition and the degreasing roasting condition.

The invention relates to the field of sintering jigs and discloses a metal powder injection molding sintering jig, comprising a base plate, a telescopic mechanism fixedly connected to the left side of the upper surface of the base plate, a movable plate fixedly connected to the right side of the telescopic mechanism, a mold plate disassembled and installed on the right side of the movable plate by bolts, the upper surface of the base plate located on the right side of the mold plate is fixedly connected to a mold forming mechanism, a feeding mechanism is fixedly connected to the top of the mold forming mechanism, the upper surface of the base plate located on the right side of the mold forming mechanism is fixedly connected to a circulating cooling mechanism, and a groove is provided at the lower right side of the mold plate; by starting the telescopic mechanism on the base plate, the movable plate and the mold plate are pushed to move, and can be moved toward the mold forming mechanism to close, or away from the mold forming mechanism to open, molding raw materials are fed into the mold forming mechanism through the feeding mechanism, and demoulding cooling is achieved through the circulating cooling mechanism.

The invention provides a binder system for beryllium-titanium alloy powder injection molding and application, and relates to the technical field of metal powder injection molding. The adhesive system consists of the following components in percentage by weight: 76 to 84 percent of polyformaldehyde, 7 to 9 percent of high-density polyethylene, 5 to 7 percent of ethylene-vinyl acetate copolymer, 3 to 5 percent of paraffin, 0.1 to 0.5 percent of stearic acid, 0.1 to 1.5 percent of polyethylene glycol and 0.1 to 1 percent of BASF antioxidant. The feed preparation method based on the system comprises the steps of powder pretreatment, binder preparation, banburying mixing and cooling granulation, and uniform coating and dispersion of beryllium-titanium powder can be achieved. According to the system, the problems that in beryllium-titanium alloy injection molding, powder is prone to oxidation, poor in fluidity and low in size precision are solved, the viscosity of the prepared feed at 180 DEG C is 88-101 Pa.S, and the oxygen content is smaller than or equal to 0.24 wt%; the relative density of a finished product is larger than or equal to 96.5%, the size precision is + / -1% / in-+ / -2% / in, and the method is suitable for industrial production of beryllium-titanium alloy complex parts in the fields of spaceflight and nuclear energy.

A peristaltic pump, specifically for pumping fluid in an extracorporeal blood treatment apparatus, includes a pump housing that accommodates a rotor rotatable about a rotor axis and a squeeze element. The pump housing includes a support surface extending in a curved shape around the rotor axis and being radially spaced from the rotor. The support surface can support a tube segment that inserted radially between the rotor and support surface. The rotor supports the squeeze element via a rocker mounted on the rotor in a pivotable and cushioned manner. The rocker supports an insertion aid by which the tube segment can be pressed into the pump bed, and tube guide elements by which the tube segment is centrally alignable to the squeeze element. The rocker is made from high-strength stainless steel with high chemical resistance and manufactured by powder injection molding, such as metal injection molding.

The invention relates to the field of powder injection molding materials, in particular to a metal injection molding aluminum-containing stainless steel material and a preparation technology, and the stainless steel material comprises the following components in percentage by mass: 6-8 wt% of Ni, 15-18 wt% of Cr, 0.5-2.5 wt% of Al and 1t of C; 0.2 wt%, and the O content is lt; the low-carbon and low-oxygen metal powder is obtained through vacuum gas atomization, the metal powder is formed through the injection molding process and then is degreased through organic oxalic acid, hydrogen is adopted in the whole process of the thermal degreasing stage, and the low-carbon and low-oxygen metal powder is obtained through the gas atomization powder preparation process, so that the low-carbon and low-oxygen metal powder is obtained. The aluminum-containing stainless steel material which is low in carbon, low in oxygen, high in compactness, high in strength, high in corrosion resistance and high in high-temperature creep resistance is obtained through the processes of heat treatment, rapid heating and heat preservation, and the C content of the stainless steel material prepared through the preparation process is 1t after heat treatment; 0.2 wt%, oxygen content lt; the 0.2 wt% structure is compact, the sintering density is high, and the normal-temperature and high-temperature mechanical strength is higher than that of conventional materials such as 304L, 316L and 17-4PH.

The invention discloses a preparation method of a refractory alloy thin-wall part, which comprises the following steps: firstly, pretreating refractory alloy powder, then mixing with a binder, granulating to obtain a feed, then obtaining a green body in an injection molding machine, and finally, sequentially annealing, degreasing, sintering and densifying the green body to obtain the part. Compared with the prior art, on the basis of powder injection molding, the high-performance refractory alloy thin-wall product is prepared through the technologies of high-melting-point powder ball-milling treatment, green body annealing and oxalic acid degreasing, and the method has the advantages of being high in size precision, low in production cost, easy to achieve batch production and the like and can well meet the commercialization requirement.

The invention belongs to the technical field of metal powder injection molding, and particularly relates to a metal powder injection molding product detection jig which comprises a bottom frame and two supporting frames arranged on the upper side wall of the bottom frame, a control box is fixedly connected to the right side wall of the supporting frame located on the right side, and a PLC is arranged in the control box. When the metal powder injection molding product is detected, a large number of detection points can be automatically selected for detection according to the size of the product, and more detection data can be obtained by greatly increasing the detection points of the product, so that the accuracy of product result detection is improved, and the detection efficiency is improved. And when the metal powder injection molding product is detected, after a defective area is detected, the defective position can be automatically classified and marked according to the defect type, so that an operator can conveniently record and analyze the defective position of the product subsequently.

The present invention discloses a method for preparing copper alloy by metal powder injection molding and a high-strength and high-conductivity copper alloy, belonging to the technical field of powder metallurgy, including: mixing copper alloy and pure titanium powder to obtain mixed powder or pre-alloyed powder; mixing the mixed powder or pre-alloyed powder with a binder, and extruding after kneading to make granular feedstock; injecting the granular feedstock into a mold to form a green body; performing catalytic debinding on the green body; performing two-stage sintering on the green body after catalytic debinding to obtain a sintered part; and performing post-treatment on the sintered part to obtain the final alloy. This method can ensure that the finally sintered copper alloy has a high density and performance level.

The invention relates to a moulding tool assembly (5) for powder injection moulding of a component (1), a method for manufacturing a component (1), and a component obtainable by the method wherein the moulding tool assembly (5) comprises: i) at least a first and a second tool part (21, 22, 22a, 22b, 23, 24), the first tool part and the second tool part are arranged to define a mold cavity (25) for forming a component (1); ii) an inlet channel (30) for filling the mold cavity (25) with a molding material (3), the inlet channel (30) extending through an opening in the first tool part (21) to the mold cavity (25) and comprising an outlet end (33) having an outlet opening (34) for discharging the molding material (3) from the inlet channel (30) into the mold cavity (25); iii) a core pin (40) extending through an opening in the second tool portion (22, 22a, 22b), the core pin (40) being movable along a horizontal axis between a rear end position and a front end position, the horizontal axis extending through a center of the core pin (40) and a center of the inlet channel (30), the core pin (40) comprising an end portion (41), the end portion (41) has an end surface (42) facing the outlet opening (34); the core pin (40) is configured to seal the opening in the second tool portion (22, 22a, 22b) with the end portion (41) thereof when the core pin (40) is positioned in a rear end position; and wherein, when the core pin (40) is in its front end position, the core pin (40) is positioned such that the molding material (3) entering the molding cavity (25) impinges on the core pin (40); and iv) a power source (43) configured to maintain the core pin (40) in its front end position until a predetermined pressure threshold is exceeded during filling of the mold cavity (25), while moving the core pin (40) to the rear end position; or v) a power source (43) configured to hold the core pin (40) in its front end position for a predetermined time and to move the core pin (40) to the rear end position after the predetermined time.

The invention relates to the field of powder injection molding materials, in particular to an NbC particle reinforced ultra-high-strength steel composite material and a molding process thereof, the composite material is prepared by mixing NbC powder and ultra-high-strength steel powder, the volume ratio of the NbC powder to the ultra-high-strength steel powder is 1: 19-3: 17, namely, the volume fraction of NbC is 5%-15%. The D50 of the NbC powder is 1.0 [mu] m + / -0.5 [mu] m. The forming process comprises the steps of raw material preparation, mixing, banburying and granulation, injection molding, degreasing, sintering and heat treatment. The NbC particles in a specific proportion are added into an ultrahigh-strength steel matrix through a metal injection molding process, so that the wear resistance of the material is remarkably improved, meanwhile, the high-strength characteristic is kept, and the dual requirements of high strength and high wear resistance are met.

The utility model discloses a water-cooled mold for metal powder injection molding, which comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a supporting seat, and the top of the supporting seat is fixedly connected with a lower mold seat. Water is injected into a spiral water passing round cavity through a water inlet pipe, cold water is introduced into a lower mold base through the spiral water passing round cavity for preheating, and preheated water enters a heat preservation pipe through a first water drainage pipe and enters a communicating water cavity through a water passing pipe for mold cooling treatment; cooling water in the communicating water cavity is led into the centralized cooling cavity through the vertical water passing round cavities, and water cooling treatment is conducted on a workpiece in the lower die base.

The invention relates to the technical field of powder injection molding control, in particular to a control method and system for powder injection molding based on quantum computation.The method comprises the steps that fitting calculation is conducted on the loading capacity, the powder mass, the powder density, the plastic adding density and the finished product density, intermediate parameters of the proportional relation between plastic and powder are obtained, and a proportionality coefficient is deduced; and the formula calculation precision is improved. The volume ratio is calculated based on the design size and the actual measurement size of the workpiece, the proportion of the adhesive is dynamically corrected, and the process instability caused by proportion imbalance is avoided. And further constructing a quantum circuit comprising a Hadamard door, a revolving door and a full-connection CZ door, performing quantum state sampling on the component proportion, and iteratively optimizing a cost function of density and shrinkage rate in combination with SLSQP and L-BFGS-B algorithms to realize global optimization. Through proportional truncation and normalization correction and verification through preset constraints, the stability of powder injection molding and the consistency of finished products are improved.

The invention relates to the field of powder metallurgy, and discloses a preparation method of a powder injection molded high-strength titanium alloy, which comprises the following steps: S1, titanium alloy powder preparation: preparing titanium alloy powder by adopting a plasma rotating electrode method, and ensuring that the powder comprises the following components in percentage by weight: 5.5-6.85% of Al, 2.95-4.1% of V, 0.3-0.5% of Zr, 0.1-0.4% of Mo and the balance of Ti; according to the invention, the element B is added to form a nano TiB reinforced phase, so that the strength is obviously improved; the tensile strength is greatly improved by combining ultrahigh-pressure sintering with a graded aging process, and the degreasing time is shortened by combining solvent extraction with plasma-assisted thermal degreasing.

The present invention belongs to the technical field of powder metallurgy, and provides an alumina feed material and a preparation method and application thereof. The raw materials for preparing the alumina feed material include alumina ceramic powder and a binder, and the binder includes a solid modifier, a skeleton agent and a shape retaining agent. The alumina ceramic powder and the solid modifier are first mixed for the first time, the skeleton agent is added for the second mixing, and the shape retaining agent is added for the third mixing. After the three mixing and modification, the powder loading of the prepared alumina feed material is 70-85%, and the density is 3.92-3.95 g / cm 3 , melt flow rate 500-1400g / 10min, shrinkage 1.198-1.208%; the alumina feedstock is further used in the ceramic powder injection molding process to produce alumina ceramic products with a product yield of 85-91%, flexural strength (310-380) ±10MPa, and hardness 1720-1830kgf / mm 2 .

The invention provides a feed preparation device and method for metal powder injection molding, and belongs to the technical field of metal injection molding. The feed preparation device for metal powder injection molding comprises a fixing ring; the connecting plate is fixedly connected to the upper end of the fixing ring; the solution output pipe is fixedly connected to the upper end of the connecting plate; and the multiple sets of atomization mechanisms are arranged, each set of atomization mechanism comprises an airflow output pipe, a first spraying opening, a limiting sliding groove, a limiting sliding block, a flow dividing pipe, an external expansion plate, an air connecting opening and a second spraying opening, and in the fine metal powder preparation work, while the gas impact force is increased, a second impact airflow is increased, and the forming rate of the fine metal powder is guaranteed.

This invention discloses a liquid-cooled microchannel powder metallurgy fabrication method, belonging to the field of radiator manufacturing technology. The invention employs a pre-stamping process to prepare copper heat dissipation fins, combined with customized spherical high-purity copper powder and composite polymer bonding particles. A uniform mixture is prepared through segmented high and low temperature and high and low speed stirring. This is then combined with metal powder injection molding, oxalic acid degreasing, nitrogen atmosphere constant temperature anti-oxidation pretreatment, and high-vacuum sintering processes, along with controllable molding and sintering parameters, to fabricate a copper liquid-cooled microchannel radiator. This invention effectively solves the problems of difficult molding of thin-walled pure copper microchannel structures, poor dimensional consistency, and susceptibility to defects and springback. It significantly improves the extrusion of copper materials in microchannel structures, the smoothness of the inner wall, and the overall density, strengthens the bond strength between the fins and the substrate, and eliminates leakage, corrosion, and heat dissipation attenuation under long-term liquid cooling cycles. The product yield is high, and the stability is excellent.

The invention belongs to the technical field of metal material preparation, and discloses a feed formula for a low-oxygen-content titanium alloy FGF (Fibroblast Growth Factor), which consists of 85-92% of titanium alloy powder and 8-15% of a multi-element binder system, the binder comprises a polylactic acid / polycaprolactone blending skeleton capable of being catalytically degraded, a wax component capable of being extracted at low temperature, a compound surfactant and a high-boiling-point plasticizer, and a supported stannous octoate catalyst is introduced. According to the invention, a multi-component binder system consisting of a catalytically degradable polymer skeleton, a wax component capable of being extracted at a low temperature, a compound surfactant and a high-boiling-point plasticizer is constructed, and a two-stage degreasing process is matched, so that the fundamental contradiction between the degreasing efficiency and the material purity in titanium alloy powder injection molding is successfully solved; and a feasible technical path is provided for large-scale manufacturing of high-reliability and high-purity titanium alloy complex components.

The invention relates to the field of ceramic part injection molding, in particular to a ceramic part powder injection molding mold and process based on CIM, and solves the problems that an existing ceramic part injection mold is troublesome in switching and low in production efficiency. The injection molding device comprises a base, an injection molding machine, lantern rings, a front disc, a rear disc, a T-shaped pipe, a thick injection molding head, a straight pipe, a thin injection molding head, a sleeving head, a driving assembly, a sliding frame, a rotating disc cylinder, a lower mold base, an upper mold base, an injection molding opening and a first telescopic part, rotating plates are rotationally connected between the output end of the lower side of the first telescopic part and the two lantern rings, and mold switching assemblies are arranged on the lantern rings; the die switching assembly is used for driving and switching all the lower die bases installed on the rotary disc cylinder in an array mode, the sliding frame is further provided with a linkage assembly, and the linkage assembly is used for driving the sliding frame to slide towards one side when the front disc and the rear disc rotate. According to the device, various molds can be flexibly switched, and efficient injection molding machining production of various ceramic parts is achieved.

The utility model discloses a powder injection molding blank catalytic degreasing device, which belongs to the technical field of catalytic degreasing furnaces and comprises a catalytic degreasing furnace body and a furnace door. According to the powder injection molding blank catalytic degreasing device, a furnace door is closed and drives a second fixing barrel to sleeve a first fixing barrel, the temperature in a catalytic degreasing furnace body is gradually increased, and at the moment, easily-expandable gas in a sealing barrel starts to be heated and expanded, so that a piston circular plate is driven to slide towards the inner side of the catalytic degreasing furnace body; meanwhile, the circular sliding rod abuts against a sliding groove of a spiral sliding groove rod to drive the spiral sliding groove rod to rotate, so that a rotating rod and a driving disc rotate, an arc-shaped anti-skid ring abuts against the inner wall of a circular clamping groove of a second fixing barrel and enters the circular clamping groove, and therefore the furnace door is limited and cannot be opened; therefore, workers can be prevented from being scalded by opening the furnace door when the internal temperature of the catalytic debinding furnace body is not reduced.

The utility model relates to the technical field of injection molding equipment, in particular to metal powder injection molding equipment which comprises a molding cylinder, a molding groove is formed in the molding cylinder, a limiting ring is installed at the position, close to the top end, of the inner wall of the molding groove, an ejection structure is installed in the molding groove, and the ejection structure comprises four sets of limiting cylinders. A mounting ring is mounted on the side surface of the forming cylinder, two sets of electric push rods are mounted at the top end of the mounting ring, and the top ends of the two sets of electric push rods are both mounted to the bottom end of a mounting disc. Through the arrangement of parts such as a limiting barrel, a compression spring, an ejector plate, a mounting ring, an electric push rod, a mounting disc, a feeding barrel, an injection pipe, a motor, a mounting rod, a stirring roller, a scraping plate and a feeding hole, the problems that in the process from material conveying to injection molding of existing injection molding equipment, metal powder is prone to thermal shrinkage and condensation can be effectively solved; the non-uniform or hardening condition is caused during injection molding, so that the injection molding quality is influenced.

The invention relates to the field of powder injection molding materials, in particular to high-strength, high-toughness and high-wear-resistance tool steel and a molding process thereof, and the tool steel comprises the following components in percentage by mass: 1.0-1.6% of C, 0.1-0.6% of Si, less than 1.0% of Mn, less than 1.0% of P, less than 1.0% of S and the balance of Fe. The alloy comprises the following components in percentage by weight: 3.0%-8.0% of Cr, 0.5%-3.0% of Mo, 0.5%-2.0% of V and less than 1% of Zr; 1.0% to 4.0% of Nb; less than 5.0% of Co; ce / La: less than 0.1%; according to the tool steel material, the size of main carbides in the tool steel material is finally smaller than 2 micrometers through the injection molding technology, selection of appropriate alloy elements and content and the appropriate heat treatment technology, and therefore the material has better abrasion resistance and meanwhile has good toughness and high strength.

The invention belongs to the field of powder injection molding materials, and particularly relates to an injection molding additive for 5G optical communication and a preparation method and application thereof. The additive comprises the following raw material components in parts by weight: 80-100 parts of polystyrene; 0.1 to 3 parts of a surfactant; 0.1 to 5 parts of a lubricant; 2-6 parts of glass fiber; 4-8 parts of hollow glass beads; 1-3 parts of a flame retardant; and 0.5-2 parts of an antioxidant. According to the present invention, polystyrene is adopted as the base resin, a variety of functional assistants are added, and the formula is optimized, such that the obtained additive is used in the 5G optical communication injection molding process, such that the uniform powder dispersion can be promoted, the fluidity is good, the processing performance is excellent, and the material strength and the signal transmission efficiency and strength can be improved.

The invention relates to the technical field of injection molding, in particular to a steel alloy powder injection molding method with strength and a high polishing effect. The injection molding method comprises the following steps: preparing a green body from steel alloy powder and TiH2 powder, and sequentially degreasing and sintering the green body to obtain a steel alloy product; the sintering is carried out in a mixed atmosphere of hydrogen and argon, and the temperature is raised to 1250-1400 DEG C at a heating rate of 3-15 DEG C / min during sintering. According to the injection molding method, TiH2 powder is added into high-strength steel powder, the overall compactness of the material is improved, a small amount of Ti element is introduced, and the strength of the material is improved; and meanwhile, by increasing the heating rate of the sintering section and introducing the hydrogen atmosphere in the sintering process, surface layer pores are rapidly closed, and the high-strength steel with the strength and the polishing property is obtained.

The invention relates to powder for magnesium-aluminum alloy MIM and a preparation method of a magnesium-aluminum alloy MIM piece. The powder comprises, by weight, 94%-99.7% of magnesium-aluminum alloy spherical powder, 0.1%-2% of metal manganese powder, 0.1%-2% of metal zirconium powder and 0.1%-2% of metal zinc powder. Wherein the particle size range of the magnesium-aluminum alloy spherical powder is 1-20 [mu] m, and the particle sizes of the metal manganese powder, the metal zirconium powder and the metal zinc powder are 1-5 [mu] m. According to the preparation method of the MIM part, the powder is adopted for preparing a feed, and then the feed is prepared into the MIM part through a powder injection molding process. By optimizing the powder, the strength and toughness of the aluminum-magnesium alloy and the aluminum-magnesium alloy part are enhanced, the corrosion resistance is greatly improved, and the application space of the aluminum-magnesium alloy is expanded.

The invention discloses an automatic material taking and discharging device of a metal powder injection molding machine, and relates to the technical field of metal injection molding, the automatic material taking and discharging device comprises a motor base, an output shaft of the motor base is connected with a vertical rod, the upper end of the vertical rod is connected with a cross beam, and a hydraulic cylinder is installed on the upper portion of one side of the cross beam; a manipulator is connected to the position, located below the cross beam, of an output shaft of the hydraulic cylinder, the manipulator comprises a shell base, a servo motor is installed on the upper portion of the shell base, the output shaft of the hydraulic cylinder is connected to the upper portion of the servo motor, and a screw is connected to the position, located in the shell base, of the output shaft of the servo motor. According to the automatic material taking and discharging device of the metal powder injection molding machine, the servo motor drives the screw rod and the threaded sleeve to be linked, so that a workpiece is accurately adsorbed by the suction cup, meanwhile, the supporting plate gradually moves towards the bottom of the workpiece in the upward moving process of the threaded sleeve, and finally the bottom of the workpiece is supported; by means of the design, the workpieces are effectively prevented from falling off in the sucking and hoisting processes.

The invention discloses a laser automatic sprue removing device and method in a powder injection molding process, a laser cutter is installed on a sliding block of a vertical module, a conveying module and two conveying rails symmetrically distributed about the conveying module are installed above a machine table, a conveying plate is installed on the conveying rails in a front-back sliding mode, and a laser cutter is installed on a sliding block of the vertical module. A conveying plate is fixed to a sliding block of the conveying module, a blank fixing mold is fixed to the conveying plate, a protection structure used for protection during cutting is installed on the left side of the upper portion of the conveying plate, and a supporting and clamping structure used for supporting and fixing a blank sprue and an air suction piece used for dust collection and cooling are installed in the protection structure; the supporting and clamping structure is arranged in the protection structure, the pouring gate can be clamped and fixed before cutting, the situation that the pouring gate droops due to the weight of the pouring gate in the cutting process is avoided, notch dislocation caused by gravity is effectively prevented, and the cutting quality is improved.