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平形小砂轮及各种磨头(以下称为磨头),磨具制造厂的出厂产品都不带杆。用户在使用之前都必须粘杆才能使用。各种磨头及其粘杆后的形状如下图: 粘杆的工艺方法多种多样,但都必须牢固、可靠、安全,特别是磨头在磨削时产生一定温度的条件下,粘杆还应保持牢固。以液体酚醛树脂为材料的粘杆法,可以满足上述要求。其工艺方法介绍如下: 一、原材料的技术要求及处理方法 1.液体酚醛树脂。技术要求是: 固体含量;>78％游离酚:<15％粘度:涂料-4法(BZ-4
Flat grinding wheel and a variety of grinding head (hereinafter referred to as grinding head), abrasive factory products manufactured without the rod. The user must stick before using it. A variety of grinding head and the shape of the stick after the stick as shown below: Stick the process of a variety of ways, but they must be solid, reliable and safe, especially when the grinding head in a certain temperature conditions, the stick also Should stay strong. The phenolic resin as a liquid material sticky rod method to meet the above requirements. The process is described below: First, the technical requirements of raw materials and processing methods 1. Liquid phenolic resin. Technical requirements are: Solid content;> 78% Free phenol: <15% Viscosity: Paint-4 method (BZ-4