5results about How to "Won't crack" patented technology

The present application relates to a kind of thin-walled cylinder welding forming process and welded thin-walled cylinder, it is mainly used for metal thin-walled cylinder welding and post-welding treatment process to prevent welding deformation too large.Wherein, thin-walled cylinder diameter (50-1500) mm, cylinder wall thickness range is (0.5-20) mm.Rational welding process is used to solve the problem that product is scrapped due to serious welding deformation.Product processing verification shows that the welding forming control process meets the welding quality requirements of the thin-walled cylinder, and better solves the technical problem of large welding deformation during the welding process of thin-walled cylinder, so that the roundness requirement of the entire thin-walled cylinder assembly after welding is not more than 0.3mm.

The invention discloses a water-based heavy anti-corrosion coating for construction with rust and residual paint films. The coating comprises an ionic water-based modified alkyd emulsion, water-based fluorocarbon resin, deionized water, an anti-rust pigment, a filler, an anti-flash rust agent, a salt spray resistant auxiliary agent, a self-repairing auxiliary agent, a penetrant, a corrosion inhibitor, a thixotropic agent and an auxiliary agent. The coating contains the anti-rust pigment, the filler, the flash-rust inhibitor and the salt-spray-resistant additive, the four components interact with each other and can act on the steel surface and rust left on the surface to generate a stable chelate passivation layer and a complex, and the product is strongly attached to the steel surface in the form of physical bonds and chemical bonds to form a good insoluble protective film, so that the corrosion resistance of the coating is improved, and the service life of the coating is prolonged. The rust inhibitor can stabilize rust and prevent rust, inhibits the corrosion process, realizes construction with rust, and has the advantages of safety, environmental protection, construction with rust and residual paint film and the like.

This invention provides a power distribution unit and a charging device. The power distribution unit includes: a plurality of distribution components arranged sequentially along a first direction; each distribution component includes a circuit board and a plurality of onboard relays; the circuit board extends along a second direction, and each onboard relay is disposed on the circuit board; the second direction is perpendicular to the first direction; a bus assembly including a plurality of first busbars and a plurality of second busbars, the first busbars crossing at least one distribution component and connecting one end of each onboard relay located in different distribution components, the second busbars connecting the other end of each onboard relay located in the distribution component to connect or disconnect current loops through the onboard relays; an outer frame including at least two side frames arranged along the second direction; the two ends of the circuit board in the distribution component along the second direction are inserted and fixed to the corresponding side frames along a third direction. This power distribution unit has the advantages of small size, low cost, and convenient maintenance.

The invention provides glass powder, dielectric paste and a thick film heating body. The glass powder is prepared from the following raw materials in percentage by weight: 15 to 40 percent of B2O3, 15 to 40 percent of MgO, 20 to 50 percent of CaO, 7 to 20 percent of SiO2 and 0.1 to 8 percent of glass powder additive, wherein the total weight of the raw materials of the glass powder is 100 percent. Based on the total weight of the dielectric paste being 100%, the dielectric paste comprises 55-80% of the glass powder, 0-5% of cobalt blue, 8-35% of an organic carrier, 3-15% of a diluent, 0.5-3% of an inorganic additive and 0.2-1% of an auxiliary agent. The invention also provides a thick film heating body prepared from the dielectric paste. A dielectric layer formed by the dielectric paste is compact, free of cracking, high in binding force with stainless steel, good in breakdown voltage resistance and excellent in electrical property.

The present application relates to incinerator explosion-proof technical field, especially a kind of incinerator body explosion-proof device, the upper end of explosion-proof top cover is communicated with pipe, the bottom end of fixing mechanism is connected with explosion-proof clamp for furnace body explosion-proof;Explosion-proof clamp includes two parallelly arranged connecting strips, one end of each connecting strip is slidably connected to the bottom end of fixing mechanism, the other end of each connecting strip is slidably connected with recessed column, the bottom end of each recessed column is fixedly connected with clamping plate, two clamping plates are connected with fixing bolt for locking.This application is fixed by fixing bolt through two clamping plates, two clamping plates protect furnace body from explosion, when furnace body explodes, furnace body will not crack under the protection of clamping plate, explosion-proof top cover is always at the upper end of incinerator body under the fixation of explosion-proof clamp, waste gas and sundries produced by explosion enter explosion-proof top cover, avoid waste gas and sundries to scatter into air.