What Are The Forming Methods Of Rubber Products?

Views:9     Author:Site Editor     Publish Time: 2020-09-21      Origin:Site


Rubber Compression Molding


We often use rubber products in our lives, and rubber products are everywhere. So how are rubber products made? GoodTech will explain to you the molding method of rubber products.


1. Rubber Compression Molding

Commonly used molding methods are used to manufacture some complex rubber products such as cups and sealing rings, and the rubber material is placed in the mold for heating with the help of the formed female and male molds.


2. Extrusion Molding

Extrusion molding is also called extrusion molding. The commonly used equipment for extrusion molding is a rubber extruder, whose working principle is similar to that of a plastic extruder. The material enters the barrel through the hopper of the extruder, and through the action between the barrel and the rotating screw, the rubber is plasticized by heat, and pushed forward by the screw, continuously passing through the head and making various products with the help of a die. Products or semi-products with complex cross-sectional shapes, such as tire tread rubber, inner tube tube, pure rubber tube, inner and outer layer rubber of rubber tube, and outer skin of wires and cables.


3. Rubber Injection Molding

Rubber injection molding process is a production method in which the mixed slurry is injected directly from the barrel through a feeding device into the mold to vulcanize, similar to plastic injection molding. Using injection molding, the molding cycle is short, the production efficiency is high, the labor intensity is small, and the product quality is high. Mainly used in the production of sealing rings, damping pads and footwear.


4. Calendering

Calendering: Calendering is a process in which materials are stretched. The main equipment for calendering is a three-roll or four-roll calender. The three-roll calender is realized by the pressure of two rotating rolls. When the rubber material passes through the roller gap, it stretches into a strip of a certain cross-sectional shape under pressure, or realizes the process of hanging glue on the fabric. It is generally used for the pressing and molding of rubber materials, the pasting and wiping of textiles and steel cords, as well as the lamination of film and film, and film and rubberized fabric.


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