Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
Fax: +86-796-8180 6477
Contact: Miss Li +86-136 6988 8704
Mailbox:lixiaoxia@dgminz.com.cn

What are the quality factors affecting silica gel products

2020-11-03 11:11:08

Silica gel is a granular, glass, porous form of silicon dioxide from the synthesis of sodium silicate, silica gel than ordinary household gel-like gelatin and agar hardness is higher, silica gel as the main raw material processing works, are called silica gel products, then silica gel products what quality factors affect. 1, the quality of silicone raw materials will lead to silicone products difficult to dismantle, poor quality of silicone raw materials its toughness is insufficient, tear strength is obviously insufficient, in the process of dismantling is certainly difficult to dismantle, silicone keys. 2. In the molding process, the product is relatively thick, so the burr is actually relatively thick, and the increase in thickness will definitely lead to the difficulty of edge removal. 3, vulcanization environmental factors, vulcanization temperature should be appropriate, too high or too low will lead to the sealing ring difficult to dismantle the edge, at the same time, vulcanization time also need to be well controlled, vulcanization time is too long will lead to brittle products, vulcanization time is too short will lead to vulcanization link no effect, so the vulcanization link must be well controlled. 4, liquid silicone molding mold problems, if the mold self-disassembly design is unreasonable, the molding mold is used for too long, the molding mold is seriously worn, the quality of the molding mold is not up to standard, etc. these situations will lead to difficult to dismantle after production molding. Silicone tube is the circulation and coating carrier of liquid and gas silicone products factories and other materials. Silicone rubber tubes in the industry can be divided into "extruded tubes" and "special-shaped tube strips". They are widely used in modern industry, national defense industry and daily necessities. If silicone tubes are used daily, silicone key manufacturers do not pay attention to them during use, which will lead to failure or aging of silicone tubes. Therefore, let's find out what causes lead to silicone tubes, the causes of aging are:. 1. Ozone has high chemical active oxygen and is more destructive. It also breaks the molecular chain of the seal. However, the effect of ozone on rubber varies with whether the rubber is deformed or not. When the rubber used for deformation is mainly unsaturated rubber), cracks in the direction of stress, I .e. so-called "ozone cracking", occur. When rubber products act on deformed rubber, only oxide films are generated on the surface without cracking. 2, the role of water has two aspects: rubber in the humid air rain or soaked in water, easy to damage, this is due to the water-soluble substances in the rubber and water rubber key group and other components are water extraction dissolved, hydrolysis or absorption and other reasons, especially in the water immersion and atmospheric exposure under the alternating action, will accelerate the destruction of rubber, however, in some cases, water does not damage the rubber, and even has the effect of delaying aging.

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Silicone products molding category how to prevent static electricity

2020-11-03 09:32:37

Silica gel as the main raw material processing works, known as silica gel products, silica gel is a silica gel properly dehydrated from the particle size of different porous material, with an open porous structure, can absorb many substances, is a very good silica gel products desiccant, adsorbent and catalyst carrier, it is refined and processed into any granular or beaded form of naturally occurring minerals, so what are the types of silicone products molding. 1. Molded silica gel. Molded silica gel products are usually molded by applying pressure through a vulcanizer after putting solid silica gel raw materials added with vulcanizing agent into a high-temperature mold with silica gel keys. The hardness of molded silica gel is usually between 30°C and 70°C. The color of raw materials mixed with color paste is adjusted according to the sealing ring of Pan Tong color card number. The shape of the mold determines the shape of molded silica gel products, molded silicone products are widely used in the silicone industry at present. They are mainly used to make silicone industrial accessories, keys, silicone gifts, silicone bracelets, silicone watches, liquid silicone, key bags, mobile phone sets, silicone kitchenware, silicone pads, ice squares, cake molds, etc. 2, extruded silicone, extruded silicone products are usually extruded through the extruder silicone molding, generally extruded silicone shape is long, tubular silicone products factory can be cut at will, but the shape of the extruded silicone has limitations, widely used in medical equipment, food machinery. 3, liquid silicone, liquid silicone products are injection molded by silicone injection molding, the product is soft, silicone button manufacturers hardness can reach 10 °-40 °, because of its soft characteristics, in the simulation of human organs, medical silicone chest pad, etc. widely used. Silicone tube is the circulation of liquid, gas and other materials and coated carrier, in daily life, we all know that friction seal can be powered, in the production of silicone tube, silicone tube and human body clothes direct friction can produce static electricity, static electricity will bring some security risks, then the use of silicone tube how to prevent electrostatic measures. 1. For processes with electrostatic hazards and rubber products and equipment places, corresponding electrostatic safety measures should be adopted, and the electrostatic potential of the insulator should be controlled below the allowable value. 2. In areas where explosive gas may appear, strengthen ventilation measures to control the concentration below the lower explosive limit. Rubber keys. 3, where there is an explosion, fire hazard and to prevent the human body charged places, the operator to wear anti-static overalls, anti-static shoes or conductive shoes, the operating area should be laid conductive ground, conductive ground to ground resistance should be less than 10Ω, and must always maintain its conductive properties.

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What are the benefits of transparent silicone keys

2020-10-30 16:37:54

Transparent silicone keys, like other silicone keys, can be used for many kinds of keys, such as transparent silicone lining keys, transparent silicone keys for instruments and equipment, etc. It is mainly used in electronic calculators, remote control systems, telephones, wireless telephones, computer keyboards, learning machine keys, cipher keys and digital product keys. Other industrial equipment are rarely used because transparent silicone keys are always clean, some transparent effect is better with crystal clear to describe it is not exaggerated, so it is more suitable for high-tech electronic products. As the name implies, transparent silicone keys are silicone keys with transparent effect. They are made of transparent silicone raw materials. Transparent silicone is a colorless or skin-colored oily liquid and becomes a soft elastic material after vulcanization. They can be used for a long time and maintain their soft and elastic properties in the temperature range of -65°C to 200°C. They have electrical properties and chemical stability, water resistance, ozone resistance, weather aging resistance, no corrosion resistance and physiological inertia, non-toxic and tasteless, low line shrinkage. Transparent silica gel can be divided into addition type transparent silica gel and condensation type silica gel. The advantages of using transparent silicone keys: first, it has a transparent effect and can be used for keys that need to transmit light; The second transparent silicone key does not need to add any pigment, which can reduce the artificial color matching process.

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What is the problem of poor elasticity of silicone products

2020-10-30 15:25:49

In the molding process of the silicone product factory, the debugging and coordination of the machine has a certain influence. Sometimes in the vulcanization process, in order to improve the output and increase the production efficiency, the product that reduces the vulcanization time will soften. In order to increase the output, the temperature must be increased to reach a certain balance rate under the premise of reducing the time, otherwise the product will have various undesirable phenomena, however, if the product is too brittle and stretched for too long, it will also tear. It is suggested that the time and vulcanization temperature of the product should be properly controlled during the production process. Silicone products in the molding process a little do not pay attention to there will be some undesirable phenomena. Such as silicone products poor elasticity. And some of the more frequently used silica gel pieces have certain requirements for tensile toughness, and the product mainly needs his tensile toughness to maintain. Therefore, in some manufacturing industries, the use of silicone materials in the machinery industry once the strength is insufficient, rebound shock absorption failure, the other performance of the product will be useless. For raw materials, ordinary silica gel will have some problems, such as service life is not up to standard, poor toughness, and insufficient rebound. Adding too much silicone oil and white carbon black to the silica gel raw material leads to disordered performance of the product. The silicon atoms in the silicone resin are destroyed, the softness decreases, stickiness occurs, and the softness fluidity is not good, resulting in a decrease in the tensile strength of the product after high-temperature molding. The product will not be reflected after the production is completed. However, after a period of use, the product will gradually deform and the rebound rate will decrease, product stickiness and other phenomena.

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