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Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

18 yearsFocus on R & D and production of silicone rubber products

Become a respected supplier of silicone rubber products

Service Hotline:

+86-136 6988 8704

Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.
18 years focus on silicone rubber products research and development and production
Professional customization

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

Production of silicone keys how to control the hardness of the problem

Production of silicone keys how to control the hardness of the problem

2021-12-31 11:03:35

What is the hardness of silicone keys? I don't know much about it! The following day eucalyptus silicone for you to talk about in detail, silicone keys common hardness. If we want to mix 55 degrees 10KG weight of silica gel, with 50 degrees and 70 degrees of silica gel to adjust, according to the formula can be calculated, the weight distribution of 2.5KG of 70 degrees of silica gel plus 7.5KG of 50 degrees of silica gel can be prepared 55 degrees of silica gel, other degrees of silica gel is the same. Although it is said that 30 silica gel and 70 silica gel can also be 55 silica gel, it is still not recommended to mix 30 and 70 silica gel, because the mixing of these two kinds of rubber together not only sticks to the roller when mixing rubber, but also sticks to the mold during hydraulic molding, which will cause certain difficulty to demoulding, especially the silica gel keys with complicated structure in silica gel products. The hardness of silicone keys is determined by silicone raw materials. The common silicone hardness is 30,50,70 degrees. As the hardness of silicone keys is higher, its hand feeling will be better. However, if the hardness is too high, it will also affect the service life of the product. If the hardness is lower, the Keypad corresponding to silicone keys will be softer, the hand feeling will be worse, and the friction force between Key and plastic holes will increase, easy to cause card key. Therefore, do silicone keys generally require silicone hardness of 50 ° or 60 °. When the hardness of the customized silicone key is not on the value of the commonly used silicone hardness, the hardness needs to be adjusted according to the customer's requirements. Specific allocation formula: (target hardness degree-low hardness degree) ÷ (high hardness degree-low hardness degree) x required weight = high hardness compound weight Required weight-high hardness compound weight = low hardness compound weight www.mingzhen2006.com

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Which year the industry silicone sealing strip utilization rate is highest

Which year the industry silicone sealing strip utilization rate is highest

2021-12-28 17:35:04

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What are the good methods for silicone products that are not well demoulded?

What are the good methods for silicone products that are not well demoulded?

2021-12-25 16:46:46

If the silicone product is difficult to demold, for convenience, do not use a release agent with better release performance instead, or increase the amount and frequency of use of the release agent. Spraying too much release agent can easily cause the surface of the mold to become dirty, but it may have a certain impact on the appearance of the product. The use of excessive release agent will also affect the adhesion of subsequent screen printing and oiling. If the effect of the above method is not very good, you can consider adding an appropriate amount of internal mold release agent to the compound during preparation, but this will increase the additional cost of the product. In the production process of silicone products, demoulding is the Z key step in the molding of silicone products. No matter who, more or less, will encounter the problem of demoulding difficulties. In view of the production efficiency of silicone products, how to solve the problem of difficult demoulding? The following describes several difficult demoulding methods for reference. Spray mold release agent treatment, silicone products in the molding, silicone products do not stick to which side of the mold mold to spray mold release agent, but sometimes it is not easy to stick. Solution: use a spray bottle or other clean water to spray the product wherever it is desired to stick, and then form it after spraying, and the product will obediently stick to the place you want to stick. The product likes to stick to the lower half of the mold temperature. When the upper mold temperature is 175°C and the lower mold temperature is 165°C, the product is usually stuck to the lower mold when the mold is lifted. Surface Treatment of Mold The molding mold of silicone products should be cleaned before the hydraulic molding machine, especially the new mold that has just been unloaded must be sandblasted. Manufacturers of silicone products choose different washing sand for male and female molds. The mold just after sandblasting must be heated to a sufficient temperature before discharge and molding, and a mold release agent must be sprayed before molding. www.mingzhen2006.com

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What are the characteristics of silicone pad need to pay attention

What are the characteristics of silicone pad need to pay attention

2021-12-23 18:13:36

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How to solve the problem of defective products in making silicone keys

How to solve the problem of defective products in making silicone keys

2021-12-20 17:04:52

Causes and Countermeasures of Silicone Keys Bad The color of the silicone key is reversed. 1, put color KEY plate has been reversed color KEY should be checked, correct in time if there is any error. 2. When typing the color KEY, the color KEY shall be checked after the color KEY is reversed, and any errors shall be corrected in time. 3. Drop when coloring KEY, check when teaching complementary color KEY. Glue Overflow of Silicone Keys 1. Improper position of two kinds of raw materials: mutual position of two kinds of raw materials should be adjusted 2, a certain amount of raw material is too heavy: appropriately reduce the weight of this raw material 3. The mold has some miscellaneous materials before discharging. Appropriately reduce the exhaust distance, times and clamping speed (such as low exhaust) to solve, but also can be out of thin material molding. 1. Leakage of conductive particles: check whether the conductive particles are properly placed before discharging. 2. The KEY of the product is relatively high: the conductive size is too small to properly reduce the exhaust distance, exhaust with low pressure and spray less water. 3. The conductive cavity is shallow, and the conductive material is discharged with Teflon auxiliary when the mold is closed. Causes and Countermeasures of Silicone Keys Bad Bean-off of Silicone Keys 1, the mold temperature is not appropriate to adjust (increase) the mold temperature. 2. If the time of adding sulfur is insufficient, the time of adding sulfur shall be appropriately prolonged. 3. If the exhaust is not good, properly adjust the exhaust distance and times, refer to (unfamiliar item 2). 4. Thin conductive particles are used instead of shallow conductive holes. 5. If the conductivity is too long, the appearance has been ground out and changed to the new conductivity. The old conductivity is washed and dried before use. Causes and Countermeasures of Silicone Keys Bad Conductive Overflow of Silicone Keys 1. Use larger conductive particles instead of smaller conductive particles or use Teflon to assist discharging. 2. Repair the conductive hole if the conductive hole does not match with the conductive hole, or if there is a gap. 3. The conductive particles are not hit to the end. 4. Before putting the conductive particles, there is raw rubber in the conductive hole to clean up the mold and then make the conductive particles. 5, conductive particles dirty cleaning conductive particles. Silicone Key Bad Phenomenon Double Beans 1. The conductivity of the upper mold is not taken away by the product. After each product is separated from the mold, check whether the conductivity of the upper mold remains in the conductive cavity before putting the conductivity, and pick up the residual conductivity. 2. When absorbing the conductive particles, they have already overlapped. After absorbing the conductive particles, check whether there is overlapping phenomenon and remove the conduction. 3. Check before replaying the conductive production, and the stamper will take the conductive away. 4, lack of material, immature in the lack of material and immature place, should pay attention to the existence of conductive holes. 5, conductive particles wet conductive baking after use. Cracking of Silicone Key Deficiency 1, the mold temperature is too high to reduce the mold temperature. 2, the product is not enough to add sulfur, appropriate to increase the sulfur time. 3. Rough sand blasting and electroplating on the surface of the mold. 4. When the product is separated from the mold, the upper and lower molds are not good. Only one side of the mold is sprayed with demoulding water to make the product all attached to one side of the mold. Or add KP-10 to the material. 5. When the product is torn off manually, use an air gun to blow air to assist the product to leave the mold. www.mingzhen2006.com

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