50results about How to "Stress resistance" patented technology

The gasket material that is manufactured from a joint seat which includes three layers, that is, a front surface layer (1a), a back surface layer (1b) and the middle layer (1c), and these layers have different composition of reinforced fiber and filler respectively, and this joint seat is made from an ingredient made by mixing and kneading rubber, reinforced fiber and filler, then pressurized laminating and vulcanizing the ingredient, this joint seat is characterized in that the reinforced fiber is as a sort of fibril which is composed from one or both of organic fiber and non-asbestos type inorganic fiber, and at least a part of the filler is spicular inorganic fiber and its composition is 10 wt %-45 wt %. According to this joint seat (1), a crack breakage of the gasket that the ingredient material is the joint seat (1) due to fretting is prevented.

The pouring tube (1) comprising a tubular section (3) with a pouring channel (6) and a top plate (2) with an aperture has flat thrust surfaces (5) beneath the plate that form an angle of 20 - 80 degrees, and preferably close to 45 degrees, with axis (7) of the pouring channel. The pouring tube is set in a tube feed and changer with springs applying a thrust force at 30 - 60 degrees, and preferably 45 degrees to the tube channel's axis.

The invention provides a home decoration toilet pipe-side floor drain treatment process. The treatment process comprises the steps of S1, digging out a groove in the concrete floor around the root of a pipeline, removing residue in the groove and cleaning the groove by use of water, S2, coating the groove with an interface waterproof agent once or twice under the condition of moist, S3, evenly mixing a multifunctional emulsion with quick-setting cement in the weight ratio of (0.3-0.5): 1 into a paste, applying the paste into the groove, and compacting and trowelling, S4, after the filler in the groove is solidified, coating the root and the four sides of the pipeline with a secondary pipe fixation waterproof glue. According to the home decoration toilet pipe-side floor drain treatment process, at least three waterproof layers, namely the interface waterproof agent layer, the mixed layer of the multifunctional emulsion and the quick-setting cement, and the waterproof layer of the pipe fixation waterproof glue are provided. Due to triple waterproofing operations, the waterproof effect is excellent and the service life is long.

The invention discloses a polymer composite adhesive, an application thereof, a lithium ion battery anode material prepared based on the polymer composite adhesive and a preparation method, and belongs to the technical field of electrochemistry and new energy materials. The adhesive is dissolved in a dispersion medium to form a solution with concentration of 0.5%-2.0%, wherein the dispersion medium is deionized water, and the mass ratio of a linear polymer to a lamellar polymer is (6-16): (1-4). The lithium ion battery anode slurry using the composite adhesive is prepared from an active material, a conductive agent and the adhesive in a mass ratio of (50-80): (10-30): (10-20). The adhesive is composited from the linear polymer and the lamellar polymer, the polymer composite adhesive can construct a cross-linked three-dimensional network structure around silicon particles, the silicon particles are effectively prevented from irreversible slippage, volume change is buffered, and electrical connection and integrity of electrodes are maintained. The composite adhesive adopts widely sourced raw materials and is green and environmentally friendly.

A railway vehicle, comprising a roof (2) which is formed with an opening (16) communicating with a passenger compartment (6) of the vehicle; a movable air conditioner (10) mounted over the roof (2). The air conditioner (10) comprises an air outlet (14) arranged oppositely to the opening (16). The vehicle also comprises a joining device (18) placed between the air outlet (14) and the opening (16).The joining device is arranged to allow air hermetically flow to the passenger compartment (6) through the opening (16) from the air outlet (14), and comprises a flexible body arranged to guarantee air to flow when roof (2) and the air outlet (14) of the air conditioner (10) are movable relative to each other.

The invention belongs to the technical field of highway engineering, and specifically relates to a polyurethane single-component road liquid joint glue and a preparation method thereof. The polyurethane single-component road liquid joint glue proposed by the invention includes diphenylmethane diisocyanate, poly Ether polyol, chlorinated paraffin, dioctyl phthalate, asphalt, catalyst, curing agent and other materials are prepared by reaction. Traditional solid joint glue needs to be heated before use, and heating will inevitably produce harmful gases to pollute the environment. , the most important traditional solid joint glue has the problems of environmental protection, aging resistance and poor wear resistance, and its aging cycle is about one year. If it exceeds this cycle, it will inevitably produce multiple repairs, and it will appear easy to flow at high temperature and easy to flow at low temperature. Brittle problem. The polyurethane one-component liquid joint glue of the present invention can solve all the above-mentioned problems and can completely replace the solid joint glue. It not only has strong adhesion but also has excellent physical properties, which cannot be replaced by other joint glue.

The invention discloses high-adhesion water-based waterproof primer as well as a preparation method thereof and application thereof. The high-adhesion water-based waterproof primer is prepared from the following components in parts by weight: 25-32 parts of composite emulsified polymer emulsion, 2.8-3.3 parts of coupling film-forming agent, 0.6-1 part of hydroxyethyl cellulose, 15-18 parts of titanium dioxide, 4-6 parts of barium sulfate, 4-6 parts of calcium carbonate, 4-6 parts of talcum powder, 1-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.2-0.4 part of de-foaming agent, 0.2-0.3 part of preservative, 1.8-2.2 parts of anti-freezing agent, 0.1-0.3 part of rheological agent, 0.1-0.3 part of pH regulator, 0.4-0.8 part of thickening agent and 24-31 parts of water. The high-adhesion water-based primer has excellent film-forming property, hardness, flexibility, water resistance, chemical resistance, sealing property, seepage force and adhesion, can be effectively dissolved and permeated into an organic silicon mould release agent on novel material plates such as an art ware, a cement product, a glass magnesium board and a special cast sectional material, is inseamless engagement with the board, and achieves the practical effect of improving coating quality and field construction environment. Moreover, the preparation method is easy, is low in cost, is simple in construction way, and reduces production and construction cost.

The invention discloses a multi-layer composite runner brick and a production method thereof. The multi-layer composite runner brick comprises a brick base body, wherein the brick base body is provided with a steel liquid flow passage; a combining layer and a working layer are sequentially compounded onto the surface of the steel liquid flow passage; the brick base body is prepared from main materials including flint clay, pyrophyllite, third-level alumina clinker and clay, and a small amount of added sillimanite, andalusite and potassium feldspar; the working layer is prepared from main materials including corundum, mullite and alpha-Al2O3 micropowder, and a small amount of added sillimanite, silicon micropowder, clay and andalusite; the raw materials of the working layer are compounded into slurry, the slurry is sprayed onto the surface of the steel liquid flow passage and is fired, and the working layer reacts with a base body layer to form a mullite-based combining layer, thereby forming a whole; in a steel casting process, the working layer, the combining layer and the base body layer are closely combined together, so as to avoid the separation of the working layer. The multi-layer composite runner brick has the advantages that the cost is low, the high-temperature property is good, the anti-scouring erosion capability is strong, the market competition advantage is obvious, the thickness of the working layer can be adjusted through design, and the multi-layer composite runner brick is suitable for smelting different types of special steel.

The present invention regards a metal composition suitable for originating a joint (22) by means of welding with a borosilicate glass for a solar collector (10). The composition, expressed in weight percentage, comprises the following alloy elements Table 1 and it is such that 45.5≰(Ni+Co)≰46.5, and that (Ti+Ta+Zr)≧4×C, the remaining part being made up of iron, apart from the inevitable impurities. The invention also regards: a metal ring (20) made of the metal composition described above and suitable for originating a metal-glass joint by means of welding; the metal-glass joint thus obtained; and the tubular solar collector (10) thus obtained.

The invention discloses a PAN pre-oxygen fiber felt / SiO 2 Aerogel composite material and preparation method thereof, the PAN pre-oxidized fiber felt / SiO 2 The aerogel composite material is composed of 100-120 parts by mass of PAN pre-oxygen fiber felt and 10-150 parts of SiO 2 The aerogel is prepared by a composite of two materials; among which SiO 2 Aerogel material is composed of silicon source, first auxiliary agent, sunscreen agent, chemical drying control additive, acid catalyst, basic catalyst, aging liquid, second auxiliary agent, surface hydrophobic modifier, and third auxiliary agent in parts by mass. The ratio is 25: (20‑80): (5‑30); (0.5‑10): (0.1‑10): (0.1‑10): (20‑80): (20‑80): (20‑ 80): (20-80) is obtained in preparation. PAN pre-oxygen fiber felt / SiO of the present invention 2 Aerogel felt has the advantages of excellent thermal insulation, stable chemical properties, superhydrophobicity, high toughness, high strength and long life. The invention can be widely used in the thermal insulation industry.

The technological process of painting polyurethane to inner and outer surface of nodular cast iron pipe includes the successive steps of: surface treatment comprising outer surface shot blast and inner surface polishing; surface repairing including filling the notches with putty; heating to temperature of 20-80 deg.c; spraying inner surface with high pressure air-free spraying machine, spraying bogie and spraying gun; spraying outer surface with high pressure air-free spraying machine, spraying bogie and spraying gun; coating detection comprising detecting coating thickness and electric spark detection; and product packing. The present invention has the advantages of simple construction, wide coating application temperature range, high coating mechanical strength, stable chemical performance and no environmental pollution.