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The reason for the dark mark of silica gel is to judge whether it is of high quality.

Release time:

2021-01-12 17:00

Source:

Dongguan Mingzhen

The dark marks of silicone products belong to a kind of poor appearance, which is manifested as two colors or messy ripples on the surface after molding, and the ripple distribution is disorderly, which will affect the overall appearance. Generally speaking, silicone products are related to production, but there are some small reasons worthy of attention.

The temperature resistance of the color masterbatch is too poor, resulting in water ripples on the surface of silicone rubber products. The silicone raw materials of silicone products can be divided into ordinary silicone and meteorological silicone according to the performance of silicone keys. The cold resistance of O-ring: ordinary rubber is delayed by -20-30, that is, silicone rubber still has good elasticity at -60-70, and silicone rubber with some special formulations of sealing ring can also withstand extremely low temperatures.

Widely used in occasions requiring heat resistance, hot water bottle sealing ring, pressure pot ring heat-resistant handle, rubber material prone to dark marks during molding, liquid silica gel is made of more than two kinds of color masterbatch. If the temperature resistance of several color masterbatches is too far apart, this will lead to some color masterbatches not changing color during high temperature molding, while some color masterbatches change color because the temperature resistance of the silica gel product factory is too poor, the phenomenon of water ripples on the surface of silicone rubber products after molding.

What kind of silicone products are of high quality, and what standards or factors are there to judge whether a molded silicone key manufacturer is good.

1. Whether the burr of the self-unthreading of the product feels rough or not, the size of the clamping line determines the mold workmanship of the product, and the mold workmanship determines the overall effect of the product. The self-unthreading is very heavy.

2. The vulcanization effect of the product, the uneven hardness and softness of the product, the poor tensile rebound strength and the poor rebound effect are related to the problem of vulcanization time and raw materials of the manufacturer.

3. The color and smell of Yan rubber products and the uniformity of the color blending of silica gel products depend on the uniformity of the mixing process. The longer the time, the better the color saturation.

4. The silicone raw material is non-toxic and tasteless rubber keys. However, the raw material will have a little glue smell when adding vulcanizing agent and passing through the high-temperature oil pressure molding process of the silicone manufacturer. However, it will gradually disappear after secondary sulfur addition and long-term placement, so it is normal that there is no smell.

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More information

What is the difference between silicone plug and rubber plug

Silicone plug and rubber plug which one effect is good? Then today we will popularize their difference to where the end point is. First of all, rubber plug products, as a common type of industrial products and accessories, or have strong advantages, such as dust and water resistance, wear resistance, tear resistance, aging resistance, oil seal resistance and ozone radiation resistance, etc., while rubber materials are divided into various types, and the side materials over there can be made of dozens of compound materials, so different attribute functions can be deployed for different needs, as for some industries such as mechanical tight closure, electronic tight closure, vehicle construction and even aerospace and military industry, rubber blocking is the most suitable. Silicone rubber plug and rubber plug have one thing in common. They can be molded in the molding vulcanizer of silicone product manufacturers. The difference is that they are more environmentally friendly, have good high and low temperature resistance, feel better when touching by color hands, and can be in contact with human body skin for a long time. Therefore, silicone plugs for earphones and medical grade silicone plugs are widely used even in food silicone appliances, mainly or because of the material in particular the nature of the achievements of its scope of application. Silicone plug is different. Its material is mainly based on environmental protection advantages, material texture and comfortable application. Therefore, it is used in some electronic products, survival products and small-scale waterproof and dustproof household appliances. Its raw materials are mixed by precipitation method silica gel, high-fine molecular silicone gum and white carbon black. The molecular chain of the product is called heart, soft and comfortable to use! Compared with the materials of silica gel and rubber, they can be compared as follows: new technologies are used in traditional industries. Rubber materials have been heard for a long time in early years, so the comparison of rubber materials accounts for the majority. Up to now, more and more silicone rubber products have been reused because they can replace larger usage compared with rubber, namely environmental protection performance and various technologies, such as shape, pattern and color, etc. www.mingzhen2006.com

What are the fields of application of silicone keys for equipment

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The convenience of the use of industrial silicone buttons

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What are the molding techniques of rubber products?

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How to print the pattern on the transparent key

Some laser marking machines have played opaque keys. While using laser typing to knock out the paint, they will also burn the plastic parts that can transmit light, but cannot transmit light! Changzhou laser marking machine has a special device, which can adjust the machine to the function of laser processing light-transmitting key. The laser can clean the paint sprayed on the surface very clean without burning light-transmitting plastic, thus realizing light-transmitting key laser processing! YAG laser marking machine, the general laser marking machine can not do through the key! Light transmission keys, also called light transmission buttons, are widely used in electronic products. In dark environments, they can accurately and accurately find each button. The light transmission keys include a light transmission key body, an electronic switch located below the key body, and a luminous body. The luminous body is arranged on the lower side of the key body. A light guide body is arranged below the key body, and the light guide body has a body, the upper side of the body extends an extension to the position where the electronic switch is located, the outer surface of the extension is a first reflective slope, the lower surface of the body is a second reflective slope and doubles as a light touch surface that can be contacted with the electronic switch, and a light input part connected with the extension part and arranged corresponding to the light emitting body, the light emitting body emits light, the light is emitted to the first reflective slope through the introduction portion, and is reflected by the first reflective slope into the body, and the light entering the body is reflected by the second reflective slope out of the key body. The structure makes the light emitted from the light emitting surface of the key body more uniform, the key is more beautiful, and the user can accurately find the corresponding function key. The pattern and text on the keys are processed by laser typing! In our life, there are many keys and buttons that use laser typing and can transmit light, such as mobile phone keys, car audio keys, computer keys, and various electronic and electrical keys! www.mingzhen2006.com