183results about How to "Small permanent deformation" patented technology

The invention relates to a rubber composition. The composition comprises a main body rubber, a vulcanizing agent, a vulcanization accelerator, an activator and a reinforcing agent. The composition also comprises liquid isoprene rubber. The main body rubber comprises natural rubber, butadiene rubber and solution polymerized styrene-butadiene rubber. The invention also discloses tyre tread rubber and a preparation method thereof. The tyre tread rubber provided by the invention is low in processing energy consumption, good in surface quality of extruding and calendaring rubber materials, good in physical and mechanical properties and ageing resistant property, and relatively small in compression set and heat generation, and can improve durability of the tyre and prolong the service life of the tyre. The tyre tread rubber provided by the invention has good wet skid resistance and low rolling resistance, can guarantee security of the tyre in a driving process and is benefit for energy conservation of the tyre.

An anisotropically conductive connector, inhibits permanent deformation by contact of target electrodes to be connected with pressure and deformation by abrasion from occurring even if the target electrodes to be connected are those projected, achieves stable conductivity over a long period of time even when it is pressed repeatedly, and prevents or inhibits an object of connection from adhering, a production process thereof, and an inspection apparatus for circuit devices equipped with the anisotropically conductive connector. The anisotropically having an anisotropically conductive film, in which a plurality of conductive path-forming parts each extending in a thickness-wise direction of the film are arranged in a state mutually insulated by insulating parts. The anisotropically conductive film is formed by an insulating elastic polymeric substance, conductive particles exhibiting magnetism are contained in the conductive path-forming parts, and a reinforcing material formed of insulating mesh or nonwoven fabric is contained in a surface layer portion on one surface side of the anisotropically conductive film.

The invention discloses a flame retardant cable sheath material. The flame retardant cable sheath material comprises the following raw materials by weight: 97 to 100 parts of chloroprene rubber SN23, 10 to 15 parts of chlorinated polyethylene, 15 to 20 parts of hydrotalcite, 8 to 10 parts of magnesium carbonate, 18 to 25 parts of a modification filling material, 4 to 5 parts of trioctyl trimellitate, 3 to 4 parts of methylpentachlorostearate, 1 to 2 parts of an anti-aging agent ODA, 1 to 2 parts of a promoter TMTM, 1 to 2 parts of 3-aminopropyltrimethoxysilane, 3 to 4 parts of ethylene bis stearamide, 2 to 4 parts of aluminum tripolyphosphate, 1 to 2 parts of ferrocene, 1 to 2 parts of an anti-oxidant 168 and 1 to 3 parts of benzotriazole. The cable sheath material produced in the invention has excellent physical properties, a stable dimension, low shrinking percentage, high tensile strength, great tearing strength, strong resilience and good resistance to oil, heat, burning, sunlight, ozone, acid and alkali and chemical reagents; and the modification filling material provided by the invention has good dispersibility and low surface tension, enables tensile strength and stress at definite elongation of the cable sheath material to be further improved, reduces heat generation and compression set, delays the ageing speed of the cable sheath material, is capable of resisting acid and alkali and allows production cost to be reduced.

The invention relates to a track resistant modifying agent used in asphalt concrete. The asphalt concrete track resistant modifying agent is characterized in that the asphalt concrete track resistant modifying agent consists of raw materials with the weight portion ration of 65 to 80 portions of low density polyethylene, 10 to 30 portions of anchoring agent, and 0 to 5 portions of activated rubber powder. The anchoring agent is petroleum resin or abietic resin. The invention has inexpensive price and excellent performance, and can improve the stability of the asphalt concrete at high temperature, enhance pavement bearing capacity and prolong service life of the pavement.

The invention provides a horizontally pushing type dumper, which can move loaded cargoes backward as a whole to realize unloading. The horizontally pushing type dumper comprises a flat bottom type carriage; the flat bottom type carriage comprises a front breast board, a left side breast board, a right side breast board, a bottom board, front stand columns and rear stand columns; the carriage is internally provided with a push board which is in parallel to the front breast board; the left side breast board, the right side breast board and the bottom board are provided with longitudinal slideways or slide rails; correspondingly, the push board is provided with slide blocks or slide grooves; the left side breast board, the right side breast board and the bottom board form a movable pair with the push board; the push board can move backward and forward along the carriage under the drive of a push board driving device; when the cargoes are unloaded, the push board moves backward; and after the cargoes are unloaded, the push board moves forward to reset. According to the invention, when the cargoes are unloaded, the horizontally pushing type dumper does not need to lift the carriage and can unload the cargoes in the carriage completely only by moving the push board backward; unloading through tipping the carriage is changed to the unloading through horizontal movement, thereby promoting the cargo capacity and the vehicle stability and meanwhile reducing the probabilities that a vehicle frame suffers permanent deformation, and snap of welded joints happens in the carriage and an auxiliary frame.

The invention discloses asphalt and in particular relates to SBS (styrene-butadiene-styrene) modified asphalt and a preparation method thereof. The SBS modified asphalt comprises 88.6-94.9% of matrix asphalt, 4-6% of SBS modifier, 0.1-0.4% of stabilizer and 1-5% of aromatic hydrocarbon oil, wherein the stabilizer is prepared from an accelerant TMTD and sulfur powder. The asphalt has good high and low temperature resistance in regions with larger temperature difference, better rut resistance and good elasticity and toughness, has the effect of improving the fatigue resistance of the pavement, has good strain capacity especially on severely overloaded high flow highways and can conduce to reducing permanent deformation of the pavement.

The invention discloses an efficient coating adhesive. The efficient coating adhesive comprises, by weight, 70-100 parts of a silicone acrylic emulsion, 50-90 parts of an elastic emulsion, 6-10 parts of nanometer calcium carbonate, 9-12 parts of PS, 11-32 parts of EVA, 20-21 parts of an adhesive, 10 parts of a foaming agent, 3-4 parts of a phosphite antioxidant, 10 parts of a carboxylic styrene butadiene emulsion, 10-14 parts of natural latex, 10-20 parts of a fire retardant, 5-20 parts of a film forming assistant, 20-30 parts of an acrylic emulsion, 1-2 parts of nanometer calcium carbonate and 1-3 parts of oxidized polypropylene ester. The efficient coating adhesive has the advantages of ageing resistance, wear resistance, corrosion resistance, high burning point, small permanent deformation, strong resilience, strong bonding force, low cost and the like.

The invention relates to the technical field of tires, and discloses a bicycle tire tread rubber which comprises the following raw materials in parts by weight: 80-90 parts of natural rubber, 10-20 parts of cis-1,4-polybutadiene rubber, 15-30 parts of plasticizer, 25-58 parts of silica white, 1-10 parts of vulcanizing agent, 1-20 parts of accelerator, 1-9 parts of zinc oxide, 0.1-2 parts of calcium carbonate, 1-10 parts of reinforcing agent cb, 0.1-2 parts of stearic acid, 2-5 parts of anti-aging agent aw, 2-5 parts of anti-aging agent 4010, 1-2 parts of paraffin and 1-10 parts of silane coupling agent. The bicycle tire tread rubber has the advantages of tear resistance, fatigue resistance, heat resistance, abrasion resistance, aging resistance, small deformability, light weight, favorable water absorptivity, long service life, low compressive heat generation and dynamic heat generation, small permanent deformation, favorable anti-slip property and small rolling resistance, and can well absorb shock load.