9results about How to "Reduce subsequent processing steps" patented technology

This invention discloses a high-density, high-thermal-conductivity hot-pressed aluminum nitride substrate and its preparation method, belonging to the field of ceramic thermally conductive materials technology. The aluminum nitride substrate is composed of aluminum nitride powder and a composite sintering aid, the composite sintering aid being a fluoride, with a total addition amount of 2%-8% of the aluminum nitride powder mass. The aluminum nitride substrate has a multi-layer composite structure, including an upper dense layer, a middle stress buffer layer, and a lower dense layer. The porosity of the upper and lower dense layers is ≤0.3%, and the porosity of the middle stress buffer layer is 1%-5%. The preparation method includes steps such as raw material mixing, multi-layer molding, hot-pressing sintering, and diamond wire saw cutting. This invention achieves grain boundary purification through a pure fluoride composite aid system, combined with a multi-layer structure design to absorb cutting stress and thermal stress, resulting in a substrate density ≥99.5%, thermal conductivity ≥240W / (mK), and an ultra-thin substrate edge chipping rate ≤3%, while simultaneously reducing the sintering temperature and shortening the production cycle.

This utility model relates to the field of mining solid waste treatment technology, and more particularly to a mining solid waste recycling device, including a crushing box. The top and side walls of the crushing box are open, and grooves are provided on both sides of the interior of the crushing box. This utility model, by setting up a receiving box, utilizes a driving mechanism to vibrate it, which, in conjunction with the crushing mechanism, crushes the gravel inside the receiving box until the volume of the crushed waste reaches or is smaller than the size of the circular hole, allowing it to pass through. This process is repeated until all solid waste successfully passes through the receiving box and falls down, thus achieving the goal of recycling solid waste with approximately the same volume, reducing subsequent processing steps, and facilitating direct use. Solid waste may clog the circular hole when passing through; in this case, a cleaning mechanism can be used to clean the circular hole, reducing the phenomenon of low work efficiency caused by blockage.

The utility model belongs to the technical field of molds, and relates to an injection mold for a storage box body with imitation sewing leather patterns. The storage box body forming mold comprises a storage box body forming lower mold and a storage box body forming upper mold, and an injection molding piece is arranged above the storage box body forming upper mold. In the using process, the pattern forming grooves and the stitch-imitating leather pattern forming protrusions are correspondingly arranged on the upper mold and the lower mold, stitch-imitating leather patterns can be accurately formed on the surface of the storage box body, and then due to the optimized design of the rotating shaft forming structure, the pattern forming efficiency is improved. The rotating shaft positioning convex block is matched with the rotating shaft positioning groove, and the rotating shaft forming middle cavity is matched with the rotating shaft forming middle bulge, so that the main body, the rotating shaft and the surface with unique textures of the storage box body can be integrally formed, the production efficiency is improved, the subsequent processing procedures are reduced, the production cost is reduced, and meanwhile, the product quality is improved. And the size precision and the forming quality of the product are guaranteed through precise matching of all the parts.

The utility model discloses a special-shaped piston forming die which comprises a first die body, a linkage assembly and a second die body capable of being close to or away from the first die body in the first direction. A third die body capable of moving along a second direction is arranged between the first die body and the second die body; a cavity matched with the special-shaped piston is formed among the first mold body, the second mold body and the third mold body, and a liquid inlet communicated with the cavity is formed in the second mold body; and the linkage assembly is connected with the second die body and the third die body. The third mold body is arranged between the first mold body and the second mold body, and the cavity matched with the special-shaped piston is formed among the first mold body, the second mold body and the third mold body; after the special-shaped piston is formed, when the second die body is opened, the third die body can be opened in two directions along with the second die body, so that the special-shaped die body can be taken out smoothly, the special-shaped piston can be formed at a time, the cost is reduced, meanwhile, the subsequent machining steps can be reduced, and the production efficiency is improved.

The utility model discloses a kind of metal frame arc straight edge welding connection structure, including straight edge metal frame and arc metal frame, the straight edge metal frame and arc metal frame are welded after using splicing mode, the arc metal frame end is provided with first insert plate and second insert plate, the first insert plate and second insert plate can be moved to straight edge metal frame inside, the beneficial effect of the utility model, by moving insertion rod adjustment support position, rotating support screw can accurately adjust support frame height, can stabilize and lift arc metal frame, the fixed plate of arc metal frame can slide into the support plate of straight edge metal frame, realize the preliminary positioning of arc metal frame and straight edge metal frame, without manual support of operator, before welding, support frame can be pushed by support screw and extruded arc metal frame, further strengthen fixed effect, completely solve the drawbacks of manual support, substantially reduce the labor intensity of operator, while guaranteeing that the position of both is stable during welding process, improve welding precision.

The application relates to the technical field of surfactants, in particular to a low-foaming composite surfactant and application thereof in metal cutting, characterized in that the low-foaming composite surfactant is composed of 55-65% of nonionic surfactant, 4-12% of anionic surfactant, 10-20% of co-surfactant, 3-12% of functional additive and the balance of deionized water; the nonionic surfactant at least contains fatty alcohol polyoxyethylene ether and isomeric tridecanol polyoxyethylene ether; the anionic surfactant is selected from one or more of sodium alkyl benzene sulfonate, sodium fatty alcohol ether sulfate and alpha-olefin sulfonate; the co-surfactant at least contains alkyl glycoside; and the functional additive contains defoaming agent and antirust agent. The foam elimination efficiency is greatly improved through optimization of the nonionic surfactant combination and adoption of a special defoaming agent compounding scheme, and the generation and accumulation of foam in the cutting process are effectively inhibited.

The invention relates to the technical field of metal surface treatment, in particular to a continuous selective nickel-tin electroplating method and system for a precise electronic element, and the method is used for realizing high-precision selective tin plating of a specific area and ensuring that a plating layer (especially a local plating area) has excellent binding force, uniformity and compactness; and through optimized process design and pollution control, the overall performance and the product yield of the plating layer are improved.

The utility model relates to the technical field of drawing cold tandem mills, in particular to a stainless steel wire drawing cold tandem mill which comprises a drawing box, a drawing component, a polishing and grinding component and an impurity collecting box, a filter plate is arranged at the lower end of the interior of the drawing box, an exhaust fan is installed on the lower side of the drawing box, and an air outlet is formed in the lower side of the drawing box. And a slag outlet is formed in the position, located on the upper side of the filter plate, of the other side of the drawing box, and a slag removing plate is arranged at the lower end of the front side of the impurity collecting box. The extrusion block is disassembled and assembled through the mounting ring, the assembly and disassembly speed of the extrusion block is increased, the convenience of maintenance is facilitated, the size of the extrusion block can be changed according to the outer diameter of a produced stainless steel wire, the flexibility of use is facilitated, and a drawn stainless steel wire main body is cleaned through the polishing and grinding component; and the surface of the stainless steel wire body is polished, so that the cleanliness of the stainless steel wire body is improved, and the smoothness of the stainless steel wire body is improved.

The utility model discloses a drying -machine suitable for false tooth model production, including the casing, the casing is connected with drying piece, and the drying piece includes: two groups of pull -out board, is connected in the casing right side respectively and slides, support piece, install in the casing inside for providing support for false tooth model and guiding to hot gas, support piece includes the drying board fixedly connected in the inside of casing, the casing is close to drying board lower end and is equipped with the dredging spare for the dredging of drying board, the utility model relates to false tooth model production technical field. This drying -machine suitable for false tooth model production makes drying board, air cylinder, slide, dredging rod, air -jet board, bifurcated pipe, air pump, three -way valve, heating jar, breather, guide tube, condenser, filter jar, filter screen cooperate with each other, and it is convenient for providing support, hot -wind blowing, waste gas cooling and adsorption treatment for the false tooth to be dried, avoids the direct discharge of waste gas, prevents the activated carbon desorption impurity through the pre -cooling of waste gas.