32results about How to "Guaranteed full filling" patented technology

The invention provides a method for forging a roller for a crawler excavator. The method comprises the following steps of: firstly heating a blank bar; secondly forging the upper half part of the roller through an initial forging die; thirdly, forming the lower half part of the roller through a final forging die, namely forging the two parts of the roller respectively by means of two sleeved dies, wherein the forged rollers have the same central axis and do not need to be welded. Besides, the method is capable of ensuring full filling of a forge piece and also capable of effectively avoiding the deformation failure of the die.

The invention discloses a room-temperature curing epoxy resin vacuum pouring device which comprises an environment temperature adjusting component, a sealant assembly, and a vacuum pressure adjustingcomponent; the environment temperature adjusting component is composed of a semi-closed operation box and an air conditioner; the sealant component consists of a resin defoaming tank, a pouring workpiece, and a resin collection tank disposed in the semi-closed operation box, a shell of the pouring workpiece is provided with a resin in-and-out port, and a mold groove is arranged outside the pouringworkpiece; the vacuum pressure adjusting component comprises a pump preceding stage buffer tank, a vacuum gauge, and a vacuum pump, wherein the pump preceding stage buffer tank is separately connected with an air extraction port and the resin collection tank; and the invention also discloses a debubbling method, the pouring device and the debubbling method can meet the demand for high-amount room-temperature curing epoxy resin vacuum pouring, the pouring rate is high, the resin temperature can be effectively controlled, the curing time can be prolonged, the debubbling efficiency can be increased within a limited time, and full mold filling of resin can be guaranteed.

The invention relates to a method for reinforcing the structure of a track bed and a drainage ditch of a subway tunnel, which specifically includes: judging the disease degree of the track bed and the drainage ditch, the disease degree includes serious disease and general disease, and if the disease degree is a general disease, chisel out loose structures, Arrange grouting holes in the track bed and drainage ditch according to the plum-blossom pile shape, and grouting into the grouting holes on the track bed and drainage ditch. If the disease degree is serious, the loose structure shall be chiseled, and the space cleared on the track bed shall be filled with dilute and quick filling. Hard castable, the space cleared on the drainage ditch is shaped with PVC half-pipe and double-speed cement, several pouring holes are opened at the center of the track bed, grouting holes are arranged in the drainage interval, and the pouring holes are poured into the pouring holes successively. Hard castable and thick fast hard castable, and then pour epoxy resin slurry into the grouting hole. Compared with the prior art, the present invention has the advantages of saving manpower and material resources, high construction efficiency, and no influence on operation.

A fluid dispenser device comprising: a reservoir ( 1 ) containing the fluid and a propellant; a metering valve ( 2 ) mounted on said reservoir and comprising a metering chamber, and a valve member ( 3 ) that is movable between a rest position and a dispensing position; and an automatic trigger system, preferably actuated by the user inhaling in order to actuate said valve, said trigger system including an actuator element ( 10 ) adapted to displace one of the valve member ( 3 ) and the reservoir ( 1 ) relative to the other so as to bring the valve member ( 3 ) of the valve ( 2 ) into its dispensing position, the device being characterized in that it includes, in combination, a brake system ( 60, 70 ) which co-operates with the reservoir ( 1 ) or with the valve member ( 3 ) in order to slow down displacement of the valve member ( 3 ) towards its dispensing position while the device is being actuated, and a valve-member release system that is actuated automatically when the valve member ( 3 ) reaches its dispensing position, and which returns said valve member ( 3 ) to its rest position independently of the position of said actuator element ( 10 ).

The invention belongs to the field of micro-aperture multi-channel pipe material preparation, and provides a pressurized multi-channel pipe material splitting mold combined mold core, including a mold core, a lower mold and a lower mold support plate; the center of the lower mold is provided with a lower mold through hole The outer contour of the lower mold support plate is the same as the shape and size of the lower mold through hole, the thickness is smaller than the thickness of the lower mold, and it is located inside the lower mold through hole; the bottom of the mold core is equipped with a plurality of upper mold core needles, and the lower mold support plate The top is equipped with a plurality of lower mold core needles that cooperate with the upper mold core needle; the inner wall of the lower mold is symmetrically opened with two horizontal sliding grooves; the spring and the boss slider connected with the spring are fixed horizontally in the sliding groove; the boss The slider includes a boss and a base; a supporting groove matching the front end of the boss is opened on the supporting plate of the lower mold, and the supporting plate of the lower mold is supported inside the through hole of the lower mold through the boss; the front end of the boss shrinks into the sliding groove Can be fixed in the sliding groove. The invention improves extrusion force, mold filling efficiency and mold filling ability during extrusion molding, and further improves product molding quality.

The invention relates to jewelry preparation technology, in particular to a method for preparing amorphous alloy jewelry and nozzle equipment specially used for the method for preparing amorphous alloy jewelry. First put the master alloy into the nozzle, heat until the alloy is melted and keep warm, fit the nozzle and the injection port of the jewelry plaster mold tightly, blow inert gas into the nozzle, and inject the molten alloy into the jewelry plaster mold; The nozzle used, the barrel-shaped body of the nozzle body is a barrel type, the nozzle at the end of the nozzle is a conical cone, the nozzle taper is 5-75°, and the difference between the taper of the injection port of the jewelry plaster mold is not more than 2°. The outer surface of the nozzle is frosted. The invention adopts cheap gypsum molds to prepare amorphous jewelry, has low price, simple process, high yield and high product surface quality, and is suitable for batch industrial production.

The invention provides a method for manufacturing a cross ring of a scroll compressor, and belongs to the technical field of compressors. The method solves the problems that in the case of an existingcross ring manufacturing method, the yield is low, the production efficiency is low and the manufacturing cost is high. The method for manufacturing the cross ring of the scroll compressor is performed according to the following sequential steps of firstly, cutting a round tube into a circular ring-shaped blank according to the required height; secondly, heating the blank, moreover, putting the blank into a pre-forming die for extrusion molding, then obtaining a rough blank, and forming four pre-forming portions corresponding to protruding keys in the cross ring in position on the outer sidesurface of the rough blank; and thirdly, heating the rough blank, moreover, putting the rough blank into a fine forming die for extrusion forming, and then obtaining a fine blank. According to the method for manufacturing the cross ring of the scroll compressor, the cross ring blank is formed by adopting hot extrusion, so that the wear resistance and strength of the cross ring are improved, the cross ring blank formed by hot extrusion does not generate air holes, and then the percent of pass of the cross ring blank is improved.

The invention relates to a lamination manufacturing method for an imbedded inductance magnet ring and aims to solve the problems of frequent holes and uncompleted glue filling because the conventional circuit board manufacturing process is complicated and inaccurate. The method comprises the following steps of: finishing hole position, hole number, hole diameter, hole shape and layout designs by using circuit auxiliary software CAM350; referring according to the size and the thickness of the inductance magnet ring; designing and determining the thickness sorting standard and the hole diametersize of a substrate; estimating the theoretical glue filling amount of a filling hole during lamination through the accounting of the size and the number of holes according to different substrate thickness requirements; determining the number of used half-fixed sheets 1080 during lamination; and imbedding the inductance magnet ring with the outer diameter of 3.55mm manually and laminating according to process requirements. By the manufacturing method, the inductance magnet ring is imbedded at a fixed position on a printed circuit board (PCB), the aim of manufacturing an inductance magnet ringplate can be fulfilled only by the design of wiring on the PCB and the like subsequently and the problems of holes and uncompleted glue filling are solved. The manufactured inductance magnet ring hashigh quality, low cost and high accuracy and is beneficial to popularization.

The invention discloses a technical method for forming a semi-axle housing tube for a large-diameter flange. The technical method comprises the following steps of: sawing hot-rolled round steel serving as a blank, heating, and upsetting by using an extruding machine; performing rotary forging for forming by using a rotary forging press; and performing forward extrusion once and backward extrusion to form a forged piece of the semi-axle housing tube. According to technical method, in the maximum process step of forming force required by the semi-axle housing tube, the flange is formed by the rotary forging press; and only an outer step axle and an inner step hole are formed when the head flange is formed by the rotary forging and is extruded. The technical method has the advantages that: the full filling of flange corners is ensured effectively, the investment cost of equipment is reduced effectively, the process difficulty of the subsequent extrusion process step is reduced, the coaxiality of finished products is easy to ensure, and the production cost of the forged piece is reduced while the yield of the products is improved.