Buried suction hose is a large category of hose products. Generally, metal spiral wire is used as the support skeleton material of the pipe body, and it is bonded with the coated fabric (adhesive cloth). It is mainly composed of outer rubber, middle rubber, inner rubber and other parts. The middle layer of the buried suction hose mainly plays the role of filling and bonding the skeleton and the rubber layer, and is generally processed with natural rubber and styrene-butadiene rubber as the main raw materials; Proper mixing of recycled rubber and proper adjustment of formula can effectively reduce production costs on the premise of ensuring product quality.
1. Natural rubber/recycled rubber mixed production line suction hose middle layer rubber formula
100 parts of natural rubber, 250 parts of recycled rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of antioxidant D, 100 parts of calcium carbonate, 60 parts of carbon black, 30 parts of engine oil, 0.8 parts of accelerator M, 1 part of accelerator DM, 3.7 parts of sulfur; Total: 555 copies.
2. Natural rubber/reclaimed rubber mixed with the middle rubber formula of the production buried suction hose
100 parts of natural rubber, 100 parts of recycled rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 150 parts of calcium carbonate, 15 parts of clay, 20 parts of semi-reinforced carbon black, 5 parts of pine tar, 2 parts of rosin, 1.2 parts of accelerator M, 1.2 parts of accelerator DM, and 3 parts of sulfur; Total: 407.4 copies.
3. Natural rubber/styrene-butadiene rubber/reclaimed rubber mixed with the middle rubber formula of the production line suction hose
50 parts of natural rubber, 50 parts of oil-filled styrene-butadiene rubber, 75 parts of recycled rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of antioxidant D, 75 parts of clay, 45 parts of calcium carbonate, 50 parts of carbon black, 22 parts of heavy oil, 5 parts of asphalt, 0.3 parts of accelerator TT, 1.2 parts of accelerator DM, 2.5 parts of sulfur; Total: 385.5 copies.
In actual production, the inner rubber, middle rubber and outer rubber of the buried suction hose can be properly mixed with recycled rubber in the preparation of different rubber layers, such as tire tread recycled rubber 2SLYY316 and fine tire recycled rubber; Properly adjusting the formula of rubber products can further improve the mixing ratio of recycled rubber, and reduce more production costs while ensuring the service life of buried suction hose.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits