38results about How to "Low compression heat" patented technology

The invention provides an all-steel radial tire shoulder pad rubber and a preparation method thereof. The all-steel radial tire shoulder pad rubber provided by the invention is prepared from raw materials comprising the following components by mass: 80-95 parts of natural rubber; 5-20 parts of trans-butadiene rubber; 35-55 parts of reinforcing agent; 0-3.0 parts of agent; 0-1.5 parts of silane coupling agent; 2.0-6.0 parts of zinc oxide; 1.5-3.5 parts of stearic acid; 1.0-4.0 parts of tackifying resin; parts; 1.8-2.7 parts of sulfur; 0.2-0.5 parts of anti-scorch agent. In the all-steel radial tire shoulder pad rubber provided by the present invention, on the basis of ensuring good vulcanization characteristics and basic physical and mechanical properties of the tire shoulder pad rubber, it can also improve its fatigue resistance, reduce rolling resistance and compression heat generation.

The invention provides an N330 carbon black production method. The process is simple and practical, and produced carbon black is better in performance. A hard carbon black reaction furnace is used for production, and the volume ratio of air to natural gas entering the reaction furnace is (18-19):1, so that more redundant air is generated to take participation in secondary combustion in a reaction chamber; raw oil enters the reaction chamber according to the spray amount of 440 kg / h; each kilogram of raw oil needs 2-3 m<3> of mixed gas composed of air and natural gas; the temperature of secondary combustion in the reaction chamber is controlled to be 1500-1600 DEG C; a plurality of gas inlets are evenly formed in a spray burner in the radial direction, and natural gas enters the gas inlets in a radial surrounding and axial mode so as to improve combustion efficiency; a first quenching section and a second quenching section are arranged at an outlet of the reaction furnace, the temperature of the first quenching section is controlled to be 900-950 DEG C, the temperature of the second quenching section is controlled to be 700-950 DEG C, and accordingly reaction time is prolonged; after carbon black is subjected to wet granulation, mixed gas composed of tail gas generated after carbon black production and air is introduced to dry the carbon black at the temperature of 300 DEG C; the tail gas and the air are mixed according to the volume ratio of (1.5-1.6):1.

The invention discloses a rubber composition with low calorification and low rolling resistance. The rubber composition is prepared by successively carrying out plastification, mixing and vulcanization on rubber based on natural rubber as a rubber raw material and carbon black or white carbon black as a reinforcing agent; in the mixing process of the rubber, silicon carbide micropowder is adopted to replace partial reinforcing agent, a silane coupling agent is added, and the added amounts of the rubber material, the reinforcing agent, the silicon carbide micropowder and the silane coupling agent in the mixing process of the rubber are as follows in parts by weight: 100 part of rubber material, 20-45 parts of carbon black or white carbon black, 5-50 parts of silicon carbide micropowder and 0.4-2.45 parts of silane coupling agent; the silicon carbide micropowder is in an alpha or beta crystal form, and the particle diameter of the silicon carbide micropowder is 0..001mu m-50mu m. According to the invention, the processing performance of the mixed rubber is improved, the compression calorification of vulcanized rubber is reduced, the rolling resistance is obviously reduced, and the slip-wet resistance is improved.

The invention discloses a maintenance-free tire compound, which is composed of the following components measured by weight: natural rubber: 30-70 parts, EPDM rubber: 70-30 parts, carbon black: 5-25 parts, white Carbon black: 45-35 parts, zinc oxide: 2-3 parts, stearic acid: 1-1.5 parts, anti-aging agent: 0.5-1.5 parts, accelerator: 0.1-0.6 parts, sulfur: 0.5-1.0 parts, foaming Agent: 2‑3.0 parts, foaming aid: 1.0‑1.5 parts, super silane: 5‑8% of white carbon black. The sum of the consumption of natural rubber and EPDM is 100 parts. The tire rubber compound of the present invention has the advantages of low compression heat generation, better resilience, and less wear; the present invention uses low heat generation, high grip, and low rolling resistance raw materials, coupled with a reasonable combination of component design, greatly The hidden dangers caused to processors and users in the process of production and use are reduced, and the safety, economy and adaptability of the product are wider.