胶管成型工艺
Rubber tube forming process
胶管生产的基本工序为混炼胶加工、帘布及帆布加工、胶管成型、硫化等。不同结构及不同骨架的胶管，其骨架层的加工方法及胶管成型设备各异。
The basic process of rubber hose production is mixing rubber processing, cord and canvas processing, rubber tube forming, vulcanization and so on. Different structure and different skeleton of the hose, its skeleton layer processing methods and hose molding equipment are different.
全胶胶管因不含骨架层，只需使用压出机压出胶管即可；夹布胶管需要使用将胶布包在内胶层上的成型机；抽吸胶管在成型时需先缠金属螺旋线后包内胶；编织及缠绕胶管需要使用专用的织物编织机或缠绕机；针织胶管需要使用针织机等。
The rubber hose will only use the extruder to press out the rubber pipe because it does not contain the skeleton layer; the rubber hose should be used to wrap the rubber coating on the rubber layer. Use the knitting machine, etc.
胶管成型方法主要以是否采用管芯，分为无芯法、和有芯法（又包括软芯法和硬芯法）。
The forming method of rubber hose mainly depends on whether or not the tube core is adopted, which is divided into coreless method and core method (including soft core method and hard core method).
胶管无芯成型，设备是挤压成型机（常用螺杆挤出机），将骨架层及外胶层直接在压出的内胶管上成型。
The core of the rubber tube is formed by extrusion molding machine (commonly used screw extruder), and the skeleton layer and outer rubber layer are directly molded on the inner rubber tube extruded.
胶料借助挤出螺杆的放置作用在机筒内搅拌、混合、塑化和压紧，然后向机头方向移动，最后从口型挤出的一定形状的产品，螺杆挤出机分热喂料和冷喂料两种，前者喂入经过开放式炼胶机预热的条料，后者喂入不经过热炼的胶料。
The adhesive is stirred, mixed, plasticized and pressed in the barrel with the aid of the placement of the extruding screw, and then moving to the head of the machine. Finally, two kinds of hot feed and cold feed are fed into the extruder of a certain shape from the mouth type. The former is fed into the preheated strip through the open refiner and the latter is fed without heat. Glue.