7results about How to "Less smoke" patented technology

The halogen-free precoating soft soldering flux for the nickel plating layer comprises the following components in percentage by weight: 10%-50% of modified rosin, 1.0%-10% of an active agent, 0.5%-2.0% of a surfactant, 1.0%-3.0% of an antioxidant, 1.0%-3.0% of a corrosion inhibitor, 1.0%-3.0% of an additive and the balance of a solvent, the coating method comprises the steps that scaling powder is prepared according to the original component materials, the water bath temperature is constant, a soldering lug is flatly laid on a polytetrafluoroethylene plastic plate to be preheated for half a minute at the temperature of 90-100 DEG C, a proper scaling powder solution for constant-temperature pre-coating is dropwise added to the soldering lug, heating and drying are conducted after uniform brushing, cooling is conducted to the room temperature after drying, and then the formed soldering lug pre-coated with the scaling powder is obtained. The problems that when an existing scaling powder is used for pre-coating a soldering lug, halogen such as Cl and Br is contained, coating is difficult, and adhesion occurs due to mutual contact and pressing of scaling powder coatings are solved. The soldering flux is halogen-free, has proper activity, does not stick to hands after being coated and dried, and is short in welding time, good in wettability and easy to clean; and nickel and nickel alloy can be well welded.

The invention discloses high-frequency electrotome anti-adhesion gold and a preparation method thereof. The alloy comprises the following components in percentage by mass: 9.3-10.2% of Ni; 0.05 to 0.3 part of rare earth oxide; and the balance of Ag and inevitable impurities. The rare earth oxide comprises at least two of cerium oxide, yttrium oxide and lanthanum oxide. According to the high-frequency electrotome, due to the fact that the prepared alloy is doped with the rare earth oxide which is low in electron work function and high in melting point, the hot electron emission capacity of the high-frequency electrotome can be improved, the working temperature can be reduced, and the adhesion of tissues at the working tip can be effectively reduced. The silver-nickel alloy containing the rare earth oxide has the excellent mechanical property, the polishing property of the working tip of the high-frequency electrotome can be improved, the highly-polished needle tip can effectively reduce adhesion of tissue scorching substances in the cutting process, the adhered scorching substances can be wiped off more easily through clean gauze, and the operation is smoother and rapider.

The application is a kind of air supply structure of pellet stove, including combustion chamber and oil receiving tray, the peripheral wall of the air duct shell of the combustion chamber is spaced apart from the peripheral wall of the combustion cup, the top end of the air duct shell is provided with air duct cover, and the top end of the combustion cup is provided with combustion cover; the side wall of the combustion cup, the air duct cover and the combustion cover are all provided with air guide hole; the spiral airflow generated by the airflow sent into the air duct shell by the air supply fan and passing through the air guide hole evenly spreads the fire and heat wave in the combustion cup to the bottom of the oil receiving tray; the left and right ends of the bottom of the oil receiving tray are oppositely provided with fire outlet, the middle of the two fire outlets is provided with fire tray, the fire outlets at the left and right ends emit fire from the edge to the center of the oil receiving tray, and the fire tray emits fire from the lower end to the upper end of the oil receiving tray, which can better realize the uniform distribution of fire and heat wave to the surface of food, the structure of spiral airflow can spread the fire and heat wave, which can fully promote the full combustion of pellet fuel in the combustion chamber, better release heat, and reduce smoke.

The invention discloses an environment-friendly flame-retardant anti-interference cable, which comprises a plurality of mutually combined cable conductors, the cable conductors are made of high-purity copper or aluminum, the outer surfaces of the plurality of cable conductors are tightly wrapped with cable insulating layers, and the cable insulating layers are filled between two adjacent cable conductors to ensure the electrical insulation among the plurality of cable conductors. A metal shielding layer is woven on the outer surface of the cable insulating layer and used for shielding external electromagnetic interference, a non-metal shielding layer is wrapped on the outer surface of the metal shielding layer and used for further enhancing the shielding effect, an environment-friendly filling layer is filled between the cable insulating layer and the metal shielding layer, and a cable outer sheath layer is wrapped on the outer surface of the non-metal shielding layer and used for further enhancing the shielding effect. According to the invention, the cable conductor can be conveniently protected, the anti-electromagnetic interference capability of the cable main body is improved, the cable main body can rapidly play a flame-retardant role when encountering a fire source, and the pollution to the environment is effectively reduced.

The invention discloses a cross-linked polyethylene insulated non-magnetic metal armored flame-retardant power cable which comprises a cable core formed by twisting a plurality of cross-linked polyethylene insulated wire cores. Graphene fibers are filled in gaps of the cable core; an anti-aging rubber hose is arranged outside the cable core, and a plurality of V-shaped anti-extrusion heat dissipation grooves are formed in the outer surface of the anti-aging rubber hose; a crocheting mixed shielding layer is arranged outside the anti-aging rubber hose, a high-temperature fire-resistant synthetic crystal insulating tape is lapped outside the crocheting mixed shielding layer, a high-strength braided flame-retardant layer is lapped outside the high-temperature fire-resistant synthetic crystal insulating tape in an overlapping manner, a non-magnetic metal armor layer is arranged outside the high-strength braided flame-retardant layer, and a magnetic shielding layer is arranged outside the non-magnetic metal armor layer. And a ceramic silicone rubber oxygen insulation outer sheath is extruded outside the non-magnetic metal armor layer. The cable has excellent mechanical property, shielding property and flame retardance, and is economical and environment-friendly.

The utility model discloses an endless belt type dripping forming granulator, which belongs to the technical field of granulators and comprises a cooling water tank, two mounting racks are mounted on the top surface of the cooling water tank, and a conveyor belt is mounted between the outer walls of one sides of the two mounting racks; and the collecting assembly comprises two first connecting rods, two first auxiliary connecting rods, a mounting cover, a condensing plate, two second connecting rods and a falling opening, and the two first connecting rods are rotationally connected to the outer walls of the two sides of the cooling water tank correspondingly. According to the annular belt type dripping forming granulator, falling high-temperature materials are cooled through the cooling water tank, generated water vapor is condensed when encountering a condensation plate, falls from one end of the condensation plate and enters the cooling water tank again, consumption of water resources is reduced, meanwhile, smoke on a production site is reduced, an electric push rod drives a sliding block to move, and the cooling effect is improved. And the angles of the mounting cover and the condensation plate are adjusted, so that the production requirements are met, and use is facilitated.

This invention discloses a method for solving the problem of smoke interference during photography in blasting light testing. Specifically, it is a method for solving the problem of smoke interference during blasting caustic lines, moving light projectiles, and DIC experiments. The device includes a smoke-controlling explosive TATP, a clamp with three functions: blocking, smoke control, and smoke guiding, a smoke-blocking and smoke-venting pipe, an elastic loading block, a freely height-adjustable frame, and bolt posts. The smoke-controlling explosive TATP is loaded into the borehole. A sealing ring is placed on the grooved side of the clamp. A certain width of the outer sealing ring is cut off, and a guide groove of the same width is opened above the clamp, which then contacts the surface of the specimen. The center of the clamp is on the same horizontal line as the center of the borehole. A smoke-blocking and smoke-venting pipe with a diameter slightly larger than the clamp's diameter is placed outside the clamp, with a rubber pad attached to the side that contacts the specimen. A smoke-venting slit of a certain width is opened on the side wall, and the guide groove is aligned with the smoke-venting slit to form a smoke guiding channel. An elastic loading block with a central opening abuts one side against the end face of the smoke-blocking and smoke-venting pipe without the rubber pad, and the other side is penetrated by a bolt post on the frame, abutting against the frame. Finally, the bolt post passes through the elastic loading block, the clamp, and the smoke-blocking and smoke-venting pipe. Adjusting the bolt post makes the clamp fit tightly against the specimen, and the elastic loading block abuts against the smoke-blocking and smoke-venting pipe, fitting the surface of the specimen. The method of this invention can effectively control smoke from firing, improve experimental shooting, and enhance experimental accuracy.