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Anti-static measures in the production of vulcanization degree of rubber products

Release time:

2020-12-05 15:08

Source:

Dongguan Mingzhen

In order to control the vulcanization level of rubber O-rings, rubber sealing rings and other rubber products, and to improve the product quality, it is necessary to judge the suitable vulcanization premise of sealing products. Silica gel products have an open porous structure and can absorb many substances. It is a good desiccant, silica gel product adsorbent and catalyst carrier.

The adsorption of silica gel is mainly physical adsorption, which can be regenerated and used repeatedly. Acid is added to the alkali metal silicate (such as sodium silicate) solution to acidify it, and then a certain amount of electrolyte is added to stir, that is, silicic acid gel is generated, or acid or ammonium salt can be added to the concentrated sodium silicate solution to generate silicic acid gel.

On the premise of judging the vulcanization temperature, the vulcanization time varies with the thickness, shape and vulcanization rate of the product and the thermal conductivity of the filler. In addition, the sealing ring is closely related to the size of the heat transfer area and the height of the model during vulcanization, especially the appearance of the porous mold (I .e. one mold with multiple eyes). As the mold cavities become compact, the heat transfer area of the model is correspondingly reduced, resulting in a drop of heat transfer consequences, the vulcanization temperature of rubber sealing products is individually controlled at about 150 ℃. With the development of China's rubber industry, vulcanization equipment for rubber sealing products has been gradually improved. Some factories have adopted vulcanization production methods such as folding vulcanization molds, fixing templates on flat vulcanizing machines and other equipment, mold shifting methods and transfer injection silicone products factory methods.

The vulcanization premise of rubber sealing products is individually judged by the method of measuring rubber positive vulcanization, which can be judged by the methods of rubber tensile strength, effective elasticity, eternal deformation, hardness, constant load elongation, tear resistance, Mooney viscosity, etc. Silica gel products of silica gel key manufacturers have an open porous structure, can absorb many substances, and are a good desiccant, adsorbent and catalyst carrier. The adsorption effect of silica gel is mainly physical adsorption, can be regenerated and used repeatedly.

Anti-static seals in the production process of rubber products:.

1, equipment grounding.

2, adhere to the air moist.

3. Wear anti-static clothes, wear anti-static shoes, put an end to chemical fiber clothes, and prohibit wearing insulated shoes.

4, the action can not be too hasty, too rough.

5. Avoid direct contact between rubber products and rollers.

6. Equipment and device inductive static eliminator. Silica gel products have an open porous structure and can absorb many substances. It is a good desiccant, adsorbent and catalyst carrier. The adsorption effect of silica gel is mainly physical absorption of rubber keys. It can be regenerated and used repeatedly. Acid is added to alkali metal silicate (such as sodium silicate) solution to acidify it, and then a certain amount of electrolyte is added for stirring to generate silicic acid gel, alternatively, the addition of an acid or ammonium salt to a more concentrated sodium silicate solution can also produce a silicic acid gel.

 

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