47results about How to "Has no rust" patented technology

The invention discloses an integrally formed composite door leaf and a manufacturing method of the composite door leaf. The composite door leaf comprises a composite door plate, a front press strip, a back press strip, a front sealing rubber strip, a back sealing rubber strip, a door carrying frame, a lower slide block assembly and tempered glass, wherein the tempered glass is arranged on the upper half part of the composite door plate and forms an observation region; the door carrying frame is fixed above the composite door plate through screw bolts; the lower slide block assembly is fixed under the composite door plate through screw bolts; the front press strip and the back press strip are arranged at the two side edges of the composite door plate; the front sealing rubber strip and the back sealing rubber strip are arranged on the press strips of the symmetrical sides; and the sealing of the composite door leaf is realized. The composite door plate comprises an upper fiber reinforced composite panel, a filling core material layer, a reinforcing sectional material, an embedding element and a lower fiber reinforced composite panel which are in sequential distribution from top to bottom. Compared with a conventional aluminum alloy door leaf, the composite door leaf achieves the goals of simplifying production flow processes, saving the energy and reducing the cost, improves the taking comfort of a rail vehicle, and has good application prospects.

A rust resistance semi-metallic brake pad comprises the following components according to parts by weight: 3 to 5 parts of tire powder, 3 to 5 parts of expansion graphite, 6 to 10 parts of superfine iron oxide powder, 9 to 13 parts of phenolic resin, 15 to 20 parts of stainless steel short fibre, 2 to 3 parts of cashew nut shell oil friction-type mix, 3 to 5 parts of foam ferrous powder, 3 to 5 parts of graphite particle, 10 to 15 parts of barites (600 meshes), 3 to 5 parts of chromite, 2 to 4 parts of magnetite, 3 to 5 parts of precipitated calcium carbonate, 2 to 3 parts of heavy magnesia, 9to 12 parts of acicular aedelforsite fibre, 1 to 2 parts of antimony sulphide, 0.5 to 1 part of copper sulphide. The invention is stainless, and has the characteristics of high friction coefficient,good and high capacity of temperature and decline resisting, long service life, and the like. The high temperature resistance thereof can reach 450 DEG C, friction coefficient is stable between 0.3 and 0.4, and the cost performance of the brake pad thereof is extremely high, and the brake pad can be especially applied to the front brake of light cars for long time and frequent use without damagingeither the brake drum or the brake disc.

The invention discloses a sponge city water treatment method. The method comprises the following steps that rainwater and sewage are introduced into a sediment separator of a sponge city integration system; sediment and water are separated by the sediment separator, clean water after separation is introduced into a first water treatment chamber and precipitated, the clean water acquired after being precipitated is introduced into a second water treatment chamber and a third water treatment chamber in sequence, and water purification treatment is conducted on the clean water in the third water treatment chamber through a water treatment machine; the clean water after water purification treatment is introduced into a water storage tank for storage and use in future; the sewage after separation by the sediment separator flows into a flood discharge drain pipe via a sewage pipe and is discharged through the flood discharge drain pipe; the water in the third water treatment chamber overflows to a shallow channel through an overflowing device, then flows into a deep channel through an infiltration well, and finally flows into the flood discharge drain pipe for flood discharging through the deep channel. According to the sponge city water treatment method, rainwater and sewage can be transformed into domestic water efficiently and in a environmentally friendly way, flood discharge can be conducted fast, and the method has a good flood discharge effect and universal applicability.