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在制造汽车用制动衬片的摩擦材料中是否必须填加钢丝,是制造厂与某些用户之间经常争论的问题。本文从对国产和进(?)石棉绒质摩擦材料配方组份份的分析和调查入手,通过对填加1～3%铜丝和不加铜丝对冲击强度影响的试验研究证明,加铜线不会明显地提高制品的冲击强度;能过时含1%铜丝的摩擦试件显微观察论断.铜丝的存在是国产石棉绒质摩擦片易于形成热裂纹的主要因素之一。取消铜丝.填加铜或铝粉屑和钢棉.对提高制品冲击强度,改善其摩擦磨损性能具有重要作用。
Whether steel wires must be filled in the friction material used to make automotive brake linings is a constant argument between the manufacturer and some users. Based on the analysis and investigation of the components of the imported and imported asbestos-based friction materials, the experimental study on the impact strength of 1 ~ 3% copper wire and no copper wire proves that adding copper The wire can not obviously improve the impact strength of the product; the microscopic observation of the friction test piece that can obsolete with 1% copper wire is one of the main factors that the domestic asbestos velvet friction plate is easy to form a hot crack. Cancel the copper wire, add copper or aluminum dust and steel wool, which has an important effect on improving the impact strength and improving the friction and wear properties of the product.