A new generation of enhanced oil is not used in process of ordinary triangle, triangle and the cutting type V belt production process. Main material is oil resistant, heat resistant properties of ji jia ran rubber composite material instead of the regular triangle using day, skeleton material produced by using hard polyester cord. Process is more complex. A new generation of enhanced oil resistant triangle has long service life, more than 3 times higher than ordinary triangle, oil resistant, high temperature resistant, resistant to flexible, fatigue resistance, etc. High quality wrapped V belt developed since 2001, cracked a lot of problem, products tested, physical and mechanical properties are significantly higher than ordinary v-belt, life of the original three times, through the use of domestic and foreign customers reflect the good, have reached or exceed the advanced level of developed countries abroad. Is a high quality of wrapped V belt formulation development, especially the company research and development of short fibers mixed gum, conquer the belt industry a big problem in the world, in the package cloth narrow v-belt shoujia the short fiber mix glue in China. The second is the main performance index, greatly increasing ( A) Physical properties. The tensile strength enterprise standard: type A 3. 5 KN, the national standard is 3 KN, increased by 14%; Type B 6 KN, the national standard is 5 KN, increased by 17%; Is 9 KN type C 10 KN, national standards, increased by 10%. ( 2) A and B type reference force stretching rate down to 4% or less, ordinary v-belt standards for 8% or less. The cord pull force has improved significantly. ( 3) The fatigue life of 2 x 107 times ( A torque method) And the ordinary v-belt standard 1 x 107 times ( No distance method) , the actual life reached three times. ( 4) Resistance to high and low temperature test is equivalent to auto v-belt standards, but not for ordinary v-belt this requirement. 3 it is effect analysis and innovation point ( A) Materials and ingredients. High quality wrapped V belt has changed the past traditional wrapped V belt material use and ingredients. One is the change from the traditional soft polyester cord for the anti-embrittlement low shrinkage hard polyester cord, cord strength can be enhanced greatly and reduce its shrinkage; 2 it is to use high-density canvas new materials, adopted in traditional wrapped V belt and rubber soles of rubber in anti-aging formula process; Three is to improve its product quality performance, change the traditional ingredients, developed canvas rubber formula, cord dipping glue formula and glue, stretching rubber formula, bottom rubber formula. （ 2) Structure. Mainly adopts high density, high modulus and low shrinkage polyester cord canvas hard line, reoccupy developed rubber formula, cord rubber formulation and glue, stretching rubber formula, bottom rubber formulation, and strict production process. In cloth narrow v-belt shoujia the short fiber mix glue in China, the world's first chuang belt industry, thus both innovative ingredients, and improve the service life of the products and improve the fatigue resistance of their products, the resistance performance. （ 3) Technical indicators and performance. The technology index, tensile strength higher than that of ordinary v-belt type A type B reference elongation is 4%, or less than ordinary v-belt for 8% or less is reduced greatly, have xiao to prevent the use of process elongation of the skid. Cord pull force increased significantly, the fatigue life of 2 x 107 times ( A torque method) The standard and common V belt. This article by polyurethane industrial synchronous belt arc-gear synchronous belt original, reproduced please indicate the copyright: http://www. lilainuo。 com