10results about How to "Reduce scorching" patented technology

The invention relates to a cross-linked polyethylene insulation material and a preparation method and application thereof, and the cross-linked polyethylene insulation material comprises the following raw materials: low density polyethylene, an antioxidant, a cross-linking agent, a first scorch retarder and a second scorch retarder, the first anti-scorching agent comprises one or more of an olefin anti-scorching agent, an allyl substituted phenol anti-scorching agent and a thiocarbonate anti-scorching agent, the second anti-scorching agent comprises a free radical terminator, low-density polyethylene, an antioxidant and a cross-linking agent, and the first anti-scorching agent and the second anti-scorching agent are matched for use. The scorching phenomenon of the cross-linked polyethylene insulation material in the processing process and the using process can be reduced, the scorching resistance of the cross-linked polyethylene insulation material is improved, and the service life of the cable is prolonged.

The invention discloses a double transition metal / chitosan-based carbon aerogel composite material and a preparation method and application thereof.The method comprises the steps that a nitrogen source and transition metal salt are added into a hydrochloric acid solution of chitosan, stirred, dissolved and evenly dispersed to prepare a mixed solution, the mixed solution is subjected to freeze drying, and the double transition metal / chitosan-based carbon aerogel composite material is obtained. Chitosan aerogel containing transition metal and a nitrogen source is prepared; the transition metal salt is any two of ferric salt, cobalt salt and nickel salt; the chitosan aerogel containing the transition metal and the nitrogen source is placed in a methanol solution of 2-methylimidazole, after vibration treatment and drying, the chitosan aerogel is placed in a nitrogen atmosphere to be subjected to heat treatment, and the double-transition-metal / chitosan-based carbon aerogel composite material is prepared. The preparation method is simple and reasonable in design, the prepared material has good specific surface area and porosity, the formed metal-nitrogen double active center effectively improves the adsorption performance of the material, and the material has good catalytic performance.

This invention relates to the field of tobacco processing technology, and particularly to a sweet-scented granular tobacco stem and its processing technology. The processing technology includes the following steps: S1, Preparation of coarse granular tobacco stem: The tobacco stem raw materials are screened by size, washed, stored, pressed, cut once, and cut twice to obtain coarse granular tobacco stem; S2, Popping the stem in a popcorn machine: The coarse granular tobacco stem is fed into a popcorn machine for roasting, kept warm and pressurized, and then quickly depressurized to normal pressure to obtain granular tobacco stem with a uniform microporous structure; sieving; S3, Flavoring the tobacco stem: The sieved granular tobacco stem is fed into a roasting equipment, a natural sweetener is added, and roasting is performed, controlling the moisture content between 12-14%, to obtain the finished sweet-scented granular tobacco stem. The sweet-scented granular tobacco stem obtained by this invention has a regular and uniform shape, rich flavor layers, and a long aroma retention time. The overall quality of the tobacco stem is significantly improved, and it can be effectively applied to cigarette production to enhance the competitiveness of cigarette products.

The invention provides a manufacturing method of a Mini-LED packaging BT substrate, and the method comprises the following steps: S1, carrying out the processing of the surface of a BT carrier plate, and enabling the surface to form a compact light absorption film layer; s2, performing laser grooving on the BT carrier plate subjected to surface treatment; s3, electroplating and copper deposition are carried out on the BT carrier plate after slotting; s4, a circuit pattern is manufactured on the BT carrier plate after copper deposition is completed; s5, performing resistance welding processing on the BT carrier plate on which the circuit pattern is manufactured; and S6, carrying out nickel-palladium-gold treatment on the BT carrier plate subjected to resistance welding treatment, and then carrying out cleaning, cutting, fragmentation and inspection to obtain the Mini-LED packaging BT substrate. According to the manufacturing method of the Mini-LED packaging BT substrate provided by the invention, the surface of a BT carrier plate is treated, so that a compact light absorption film layer is formed on the surface of the BT carrier plate; according to the method, the undemanded area is removed through the laser, grooving of the LED packaging BT substrate is achieved, the width of the groove can be not larger than 0.1 mm, the cutting quality is improved, the grooving precision is improved, the manufacturing cost is reduced, and therefore high-precision and low-cost grooving manufacturing is achieved.

The utility model relates to the technical field of aromatherapy, in particular to a heating aroma raising cup which comprises a cup body, an open end is arranged at the top of the cup body, an inner support of an annular structure is arranged on the inner side wall of the cup body, a circuit board is arranged on the inner support, and the circuit board is connected with a button extending to the outer side of the cup body and an interface used for being connected with a power line. The circuit board is further connected with a heating piece located on the inner side of the cup body, the heating piece is of an annular structure, a built-in cup is attached to the inner side of the heating piece, a containing cavity used for containing natural perfume is formed in the built-in cup, the heating piece can heat the natural perfume in the containing cavity at intervals, and the side, close to the open end of the cup body, of the built-in cup is of an open structure. A separable cover body is arranged at the opening structure, an air hole is formed in the cover body, and a containing cavity in the built-in cup is communicated with the space outside the cup body through the air hole. The aromatherapy cup is beneficial for solving the problem that a common aromatherapy cup structure in the current market cannot be matched with natural perfume to efficiently release fragrance.

This application relates to a method for preparing a toughened, low-shrinkage unsaturated polyester resin bulk molding compound. The bulk molding compound is extruded using a screw extruder. The screw extruder includes a frame, an extrusion module, and an extruder head. The extruder head is equipped with a filter structure, which includes a filter screen with a plurality of filter holes and a drive component. The filter screen is installed inside the extruder head and is rotatable. The drive component includes a toothed ring fixed to the filter screen and a drive gear driven by a motor installed outside the extruder head. One side of the toothed ring is exposed outside the extruder head, and the drive gear meshes with the toothed ring. This application uses a drive gear to drive the rotation of the toothed ring, thereby causing the filter screen to rotate inside the extruder head. This solves the problem of a fluid dynamic "dead zone" easily forming in the contact area between the filter screen edge and the inner wall of the extruder when using a fixed filter screen structure, reducing the possibility of scorching caused by the retention of high-viscosity thermosetting materials.

This invention discloses a high-strength, lightweight automotive electronic controller housing molding device, relating to the field of automotive parts manufacturing technology. Specifically, it includes a mold base, a lower mold, and an upper mold. The upper and lower molds are connected by a lifting structure. A mold core is provided on the upper mold, and a melt injection channel is provided on the mold core. A linkage valve control mechanism is provided within the melt injection channel. The mold core and the linkage valve control mechanism are connected to the upper mold via a moving structure. When the mold core is in the closed position, the mold core, upper mold, and lower mold together form a molding cavity adapted to the automotive electronic controller housing, and the linkage valve control mechanism blocks the melt injection channel. This application utilizes a moving structure to control the movement, positioning, locking, and opening / closing of the melt injection channel, reducing device complexity and potential failure points, improving operational reliability and long-term stability. Furthermore, continuous driving from the same power source improves work efficiency.

The invention discloses an environment-friendly polypropylene electric wire for home decoration. According to the insulation material of the polypropylene wire, the polypropylene / elastomer composite material is modified by adopting two means of crystal form regulation and control and chemical grafting, and the composite material not only keeps good mechanical properties, but also has excellent high-temperature mechanical and electrical properties. Meanwhile, the novel nano flame retardant is adopted, and the product can still have good flame retardant property under the condition of high temperature resistance due to excellent char forming effect and gas barrier effect. And cable use, processing performance, installation and laying requirements are satisfied.

The invention discloses a laser cutting machine for furniture production, and belongs to the technical field of furniture processing.The laser cutting machine for furniture production comprises a bottom plate, a feeding mechanism is fixedly mounted on one side of the front end of the top of the bottom plate, and a conveying mechanism is fixedly mounted in the center of the front end of the top of the bottom plate; and a feeding mechanism is fixedly installed at the position, close to the other side of the material conveying mechanism, of the top of the bottom plate, a machine box is fixedly installed on the other side of the rear end of the top of the bottom plate, and a material rotating mechanism is installed at the top end in the machine box. By designing the feeding mechanism, the material conveying mechanism, the material pushing mechanism and the material transferring mechanism, the whole process does not need to be intervened by workers, specified work is efficiently completed at all stations, in the material transferring mechanism, feeding and material pushing are automatically completed through two positioning frames correspondingly, follow-up laser cutting is assisted, all the stations do not need to wait, and the working efficiency is greatly improved. The processing efficiency is high.

This invention relates to the C10L9 / 10 field of IPC classification, and particularly to a coal-saving catalyst for thermal power plants and its preparation method. The coal-saving catalyst, by mass percentage, comprises the following raw materials: 5-20% gluconate, 10-20% diol, 5-13% citrate, 3-10% oxygen-containing free radical organic matter, 1-3% molasses, 0.1-1% dispersant, and deionized water to make up the balance. The coal-saving catalyst prepared in this application has excellent effects in promoting coal combustion, reducing burnout, improving combustion efficiency, and reducing pollutant emissions. It also effectively enhances the mutual wetting effect of the coal system and strengthens the penetration of the coal-saving catalyst within the coal system. It is suitable for promotion in the thermal power field and has broad development prospects.