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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

How to prevent scorching in common sense of silicone products

How to prevent scorching in common sense of silicone products

2021-02-24 11:50:34

Under normal circumstances, there are many matters needing attention in the production process of mixed silicone rubber. For example, it is common for materials to burn to death, mainly because the reinforcing agent and reinforcing filler mixed in the sealing material fail to control its proportion in the production process. If this material flows into the silicone product molding manufacturer, it is likely to cause the product to be uncured, the product to have poor tensile resilience, and the rubber product to be brittle. Mixing silicone rubber is based on methyl or linear high-polymer polyorganosiloxane (commonly known as raw rubber) containing vinyl groups, with reinforcing fillers, extender fillers and additives to give various properties. The design of the rubber compound should be appropriate and reasonable. For example, the accelerator should be used in various ways as much as possible to inhibit scorching. In order to adapt to high temperature, high pressure and high-speed rubber mixing process, in the formula can also be equipped with the right amount (0.3~0.5 parts) of scorch retarder. 1. The defective product cannot be recycled. If it is not a good product of silica gel, then the company will face scrapping. If we only have a slight adverse effect on the appearance, we can still do repair processing. 2. The screen printing on the silicone products made of silicone can be removed. The silicone products have just been screen printed. Before entering the oven, they can be dipped in a little dust-free cloth screen to wipe some white electric oil. After baking, the screen will be more difficult to eliminate. At this time, sandpaper or electric grinding wheel silicone key press can be used to polish and remove the screen printing. The electric grinding wheel should pay attention to the technique and strength, improper operation method will lead to the use of silicone products processing surface quality wear marks. Production process 3. Silicone products, sealing ring customer samples/drawings → design → customer confirmation → sample opening, proofing → sample confirmation .. confirm purchase contract → open → custom production and manufacturing mold assembly → QA → delivery according to contract requirements. 4, silicone products company packaging production management process, preparation of active materials → mixing liquid silicone → molding → vulcanization → silk screen → spraying → trimming. 5, silicone product surface treatment, spray hand oil, as the name implies is to make the product feel a good feel .. oil spray plus laser carving, silicone package items spray silicone edge silicone products factory, and then the ink layer coloring laser out of the pattern after the surface, color epoxy resin, silicone has been repaired side drop liquid glue to make a pattern, color printing, any color pattern is printed on the silicone material products that can be repaired. The technical process of the silicone key manufacturer can make the silicone sleeve not only beautiful but also more stereoscopic.

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Production of silicone products grinding method is not important

Production of silicone products grinding method is not important

2021-02-23 09:26:18

It is very important whether the products can be ground by seals. Many products are not completely ground due to structural problems or worn out due to too serious grinding. This phenomenon is usually aimed at products with relatively small products and corners, such as facial cleanser brushes. If the brush is too fine, the brush head may be ground flat through grinding of grindstone rubber products, followed by right angles or dead corners, where the stone is too small to grind into the grindstone, local burrs and parting line problems arise. Grinding machine setting, the length of time and the speed of rotation, different silicone products use rubber keys with different rotation speeds and times. If the time is too long for a relatively small type of product, it is likely to lead to wear or sanding. If it is a large product, the time is too short to grind the core position. In addition, it also depends on the workmanship of the product. At present, there are many kinds of silicone products, which can basically meet the production of various types and styles of products. In order to let customers know which production mode their products are suitable. Molding: This is a very common production process of traditional silicone products. The main silicone products are completed by cooperating with the mold. The shape of the silicone product is determined by the mold. The molding process is usually to heat the temperature in the mold, and then place the silicone raw material into the vulcanizing agent for vulcanization. After vulcanization, pressure is applied to the table to form the raw material. Silicone key injection molding process: this process requires a higher quality, is a combination of silicone and plastic liquid, because the process is mainly for the higher requirements of silicone products, so it is usually only used for baby products, medical supplies production. Extrusion molding: refers to the way to extrusion molding sealing silicone products, usually extruded silicone shape is long, tubular, can be arbitrarily cut, can be used for strip, tubular silicone products. Calendering process: the film processed by calendering has obvious difference in the physical and mechanical properties of the vertical and horizontal liquid silica gel, which is called calendering effect. The pressure effect is caused by the macromolecules and needle-like and sheet-like complexes in the rubber compound under pressure and oriented along the pressure direction. Therefore, it is usually used for larger products, such as silicone sheets, silicone plates, etc. I don't know if you have noticed a problem in the silicone product factory. Many handicrafts have been made without any defects and can't find any defects. There are two main phenomena in this problem. The first is that the defects of the products have been avoided in the invisible position in the design process, while the other one of the silicone key manufacturers has achieved the complete effect through grinding or post-process treatment, in the silicone products industry also has this phenomenon, through the external process to solve the appearance of the problem, this process is often said "grinding processing".

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How to customize non-repeatable rubber O-rings

How to customize non-repeatable rubber O-rings

2021-02-22 17:10:00

What procedures do customers need to follow if they want to customize the production of silicone rubber products? The process flow of the silicone products factory is as follows. The production process is completed from strict production processes such as artwork design, mold opening and glue mixing. 1. The design of the artwork is generally based on the sample size provided by the customer. The silicone key manufacturer uses various three-dimensional drawing and three-dimensional drawing software to make it. If the customer cannot provide the sample, we can charge the customer to complete the drawing according to the customer's request. 2. Opening the mold and opening the seal mold is finished by the mold master on the CNC machine tool of the company according to the designed programming level. Some of the more difficult ones need to be manually discharged by spark machine to exit the mold. Therefore, the mold with higher content of rubber products in manufacturing technology has a relatively longer cycle, and the delivery period is usually 10 days. 3. Color mixing glue, color matching according to the Pantone color card specified by the user, the materials required for the rubber buttons are all environmentally friendly silicone, and the hardness is arbitrarily selected from 30 degrees to 70 degrees. 4. The upper mold is produced. After the mold is installed on the machine and heated to a suitable temperature, the output value of a machine is about 100000 pcs per day. Rubber O-rings are used in hydraulic and pneumatic systems and various mechanical equipment and components. Silicone products are used for sealing under static or moving conditions in specified pressure, temperature and different liquid and gas media. Silicone sealing rings are mainly used for waterproof sealing and preservation of daily necessities such as fresh-keeping boxes, electric rice cookers, drinking fountains, lunch boxes, heat preservation boxes, heat preservation boxes, water cups, ovens, magnetized cups, coffee pots, etc. Silicone key rubber O-ring use and storage attention. 1) Rubber O-rings are generally not reusable. 2) When the rubber O-ring is installed in the groove, be careful not to twist the rubber O-ring. 3) When installing the rubber O-ring, consider coating the sealing medium on the groove and O-ring. 4) The rubber O-ring should not open the original package of liquid silicone when it is not in use, so as to avoid dust or foreign matter on the rubber O-ring, which may cause damage to the rubber O-ring.

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What is the reason for the appearance of odor silicone products

What is the reason for the appearance of odor silicone products

2021-01-25 15:01:30

The peculiar smell of silica gel products is also related to sulfur (chemical symbol: S) agent. The composition and formula of vulcanizing agent may also lead to peculiar smell of products. Moreover, the proportion of this reason is relatively large. The factory element of sulfur silica gel products itself has taste. If the process is not handled properly, there may be odor, which is naturally unacceptable to ordinary users. Friends who know some silicone products should understand that it will feel soft. Some silicone key manufacturers will harden, because the hardness of silicone determines its physical properties. However, for friends who use silicone for the first time or friends who need to make silicone products for the first time, the hardness of silicone is not well understood, and there is uncertainty about what kind of hardness seals need. Method 1: the use of relatively high hardness of silica gel and relatively low hardness of silica gel according to a certain proportion of mixed deployment, generally more than 50 degrees of silica gel and more than 30 degrees of silica gel mixed deployment, in the harder silica gel, the hardness of silica gel rubber products is about 40 degrees. Method 2: We can usually use silicone oil to reduce the hardness of silica gel, but in practical application, if the ratio of silicone oil can destroy the molecular weight, tear resistance, tensile strength, etc. of silica gel, the corresponding deterioration of rubber keys will occur, affecting the life of silica gel molds. In addition, too much silicone oil will make silicone rubber molds easy to deform, so the ratio of silicone oil to silicone oil is generally not more than 5%, try to add silicone oil with higher viscosity. If the silicone oil content exceeds 5%, use a small amount to determine whether it is available. Now with the continuous improvement of the process, the application of silicone products in life is becoming more and more extensive, but it is worth mentioning that there are often some odors, many people feel puzzled, do not know what to do, in fact, this is related to production, make silicone products and so on, O-ring silicone because of its environmental protection performance and more and more popular, to understand the knowledge of silicone products, we must start with silicone raw materials. Silicone products odor reasons:. If it is the problem of silk screen printing raw materials, it is natural to consider how to make the taste of raw materials smaller or even disappear. Usually, the products can be scattered in the production process and blown with a large fan, which can effectively reduce the taste of silicone products. Secondly, the peculiar smell of silicone products is also related to hand-felt oil. Perhaps this problem will make people feel surprised. Some hand-felt oil originally does not have a very heavy smell, but after the oil injection operation is completed, it will produce a very heavy smell. If it is scattered or left for a period of time after blowing, it is necessary to consider changing the type of hand-felt oil in the case of liquid silicone.

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Why Silicone Gasket Dark Marks Silicone Gasket Quality

Why Silicone Gasket Dark Marks Silicone Gasket Quality

2021-01-25 14:46:47

Silicone products why there will be dark marks. 1, silica gel raw materials. The raw material properties and product ratios of silica gel products are different from those of silica gel key manufacturers. Therefore, for the understanding of external adverse phenomena, the surface factors are still different according to the distribution ratio of silica and silicone resin in the products. Because the raw materials belong to semi-permeable solid white glue, the mixing uniformity of the mixed rubber and vulcanizing agent depends on the quality of the rubber compound during the mixing process, while the positive rubber products are the above-mentioned reasons. 2, silicone mold. The mold is the core of the silicone product. The material selection on the mold steel occupies the main factor. Secondly, the surface defect in the processing process is probably due to the deformation of the mold caused by the excessive number of rubber keys pressing, which leads to the poor appearance of the silicone product. Secondly, in the finishing process of the mold, the precision of the mold determines the closing line of the product, the self-disassembling edge and the edge wheel angle, etc. How to correctly identify the quality of silicone gaskets. 1. Wear resistance. O-ring silica gel is becoming more and more popular because of its environmental protection performance. To understand the knowledge of silica gel products, one must start with the original silica gel product material. Wear resistance is the ability of the production and molding of silica gel products. The surface of silica gel gasket can suffer from loss. Generally, the surface of silica gel gasket seldom rubs off the silica gel keys on the surface of the product due to external factors, which does not affect the appearance, text and color, and inferior quality silicone products surface characters easy to fall off. 2, elasticity, silicone gasket has good elasticity, sealing ring because of high elasticity is mainly from the movement of silicone molecular chain segments, so in the purchase of silicone products to look at the elasticity of silicone products to judge the quality. 3. Fatigue resistance and heat resistance of O-ring: Silicone rubber has much better heat resistance than ordinary liquid silicone rubber. It can be used almost forever at 150 without performance change. It can be used continuously for 10000 hours at 200. It can also be used in silicone product factories for a period of time at 350. It is widely used in occasions requiring heat resistance, hot water bottle sealing ring and pressure pot ring heat-resistant handle.

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