Welcome to the official website of Dongguan Minz Rubber & Plastics Co., Ltd.

中文简体  | English

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 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

Professional knowledge of silicone rubber?

Release time:

2019-05-09 12:30

Source:

professional knowledge of silicone rubber?
Only this offer is also engaged in the silicone rubber industry friends-knowledge to absorb no end, only efforts to absorb, for my use! At the same time, let everyone know what is silicone rubber, what is silicone rubber, and other professional knowledge of silicone rubber. Silicone rubber (English name: Silicone rubber), divided into heat vulcanization type (high temperature vulcanization silicone HTV), room temperature vulcanization type (RTV), in which room temperature vulcanization type is divided into polycondensation reaction type and addition reaction type. High temperature silicone rubber is mainly used to manufacture various silicone rubber products, while room temperature silicone rubber is mainly used as adhesive, potting material or mold. The amount of heat vulcanization type is the largest, and the heat vulcanization type is divided into methyl silicone rubber (MQ), methyl vinyl silicone rubber (VMQ, the amount and product brand are the most), methyl vinyl phenyl silicone rubber PVMQ (low temperature resistance, radiation resistance), and other eye silicone rubber, fluorosilicone rubber, etc.
 
Silicone Rubber Expertise-Silicone Rubber Overview
Among the many synthetic rubbers,Silicone rubberIt is the best among them. It has the characteristics of tasteless and non-toxic, not afraid of high temperature and resisting severe cold. It is "calm" and "does not change color" at 300 degrees Celsius and minus 90 degrees Celsius, and still does not lose its original strength and elasticity. Silicone rubber also has good electrical insulation, oxygen resistance, aging resistance, light resistance, mildew resistance, chemical stability, etc. Because of these excellent properties, silicone rubber has played an important role in modern medicine. In recent years, a variety of silicone rubber medical supplies have been successfully trial-produced by hospitals, scientific research units and factories. Silicone rubber expertise Silicone rubber expertise-medical supplies silicone rubber anti-noise earplugs: comfortable to wear, can well block noise and protect the eardrum. Silicone rubber fetal head aspirator: easy to operate, safe to use, can be deformed according to the size of the fetal head, the fetal scalp will not be sucked up when attracted, can avoid scalp hematoma and intracranial injury and other ills, can greatly reduce the pain of dystocia pregnant women during childbirth. Silicone rubber artificial blood vessels: has a special physiological function, can be "intimate" with the human body, the human body does not reject it, after a certain period of time, it will be completely combined with human tissue stability is extremely good.
 
Silicone rubber tympanic membrane repair sheet: Its sheet is thin and soft, with good smoothness and toughness. Is the ideal material to repair the eardrum, and easy to operate, the effect is quite good. In addition, there are silicone rubber artificial trachea, artificial lung, artificial bone, silicone rubber duodenal tube, etc., the effect is very ideal. Silicone rubber expertise-silicone rubber introduction Silicone rubber has excellent heat resistance, cold resistance, dielectric properties, ozone resistance and resistance to atmospheric aging and other properties, silicone rubber outstanding performance is the use of wide temperature, can be in -60 ℃ (or lower temperature) to 250 ℃ (or higher temperature) under long-term use. However, the mechanical properties of silicone rubber such as tensile strength and tear strength are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature, and in addition to nitrile silicon and fluorosilicone rubber, the general silicone rubber oil resistance and solvent resistance are poor, so silicone rubber is not suitable for ordinary conditions, but it is very suitable for many specific occasions. It is worth mentioning that in biomedical engineering, polymer materials have a very important role, and silicone rubber is a particularly important class of medical polymer materials, it has excellent physiological inertness, non-toxic, tasteless, non-corrosive, anti-coagulation, good compatibility with the body, can withstand harsh disinfection conditions. It can be processed into pipes, sheets, films and special-shaped components according to needs, and can be used as medical equipment, artificial organs, etc. Nowadays, there are special medical grade silicone rubber at home and abroad. Silicone rubber is mainly divided into room temperature vulcanized silicone rubber, high temperature vulcanized silicone rubber.
 
 
Fluorine silica gel: When the product requires high and low temperature resistance and fuel and solvent resistance, the professional knowledge of fluorine silica gel silicone rubber is adopted-silicone cloth is made of high temperature resistant and high strength glass fiber cloth as the base material and is compounded by silicone rubber through a special process. It is a high-performance, multi-purpose composite material. Has been widely used in aerospace, chemical, petroleum, large power generation equipment, machinery, metallurgy, electrical insulation, construction and other fields.
 
Silicone rubber fiberglass cloth main performance, characteristics: 1, excellent high temperature resistance, low temperature performance, suitable for working environment temperature range of -70 ℃ ~ 280 ℃; good thermal insulation performance. 2, high strength; both soft and tough, can be cut processing. 3, good chemical corrosion resistance; anti-oil, waterproof [can be scrubbed]. 4. Heat aging resistance and weather aging resistance, as well as ozone, oxygen, light, etc. 5, with high insulation properties, dielectric constant 3~3.2, breakdown voltage 20 ~ 50kv/mm.
 
Silicone rubber professional knowledge-definition of silicone rubber miscellaneous parts silicone rubber miscellaneous parts actually refer to different types of different silicone rubber products collectively, which we call in the industrySilicone rubber miscellaneous partsIt includes silicone rubber earplugs, silicone rubber pads, silicone rubber tableware, silicone rubber seals, silicone rubber buttons, silicone rubber O-rings, silicone rubber watchbands, silicone rubber bracelets and other products, in our daily life, Industrial manufacturing, medicine are widely used.
 
Professional knowledge of silicone rubber-manufacturing requirements using chloroprene rubber, ethylene propylene rubber, silicone rubber, natural-chloroprene-styrene butadiene rubber, rubber and plastic rubber and other rubber materials with excellent aging resistance.
Silicone rubber expertise-the development of silicone rubber In recent years, the silicone rubber industry has made remarkable achievements. With the rapid growth of consumption, the silicone rubber industry has begun to change from high-performance special rubber to bulk synthetic rubber, becoming one of the largest rubber varieties. It is reported that from the rubber consumption of rubber, natural rubber accounts for 41.8, styrene butadiene rubber and butadiene rubber together account for 28.4, while silicone rubber is usually only used in a few non-tire areas such as building sealants and conductive keys, accounting for only 6.4 of the total rubber consumption. Therefore, as silicone rubber replaces other rubber species in some non-tire segments, its consumption will increase exponentially, and the market space will be further opened. In this regard, the industry also agree with the above point of view.

By 2020, the proportion of silicone rubber in total rubber consumption is expected to reach 20% ~ 33%, that is, silicone rubber consumption is expected to reach 3 million ~ 5 million tons. In other words, the development potential and long-term development of the silicone rubber industry are very attractive, and its rapid development will also have a profound impact on the upstream and downstream industries.

In fact, the upstream and downstream industry linkage effect of the silicone rubber industry has begun to gradually appear. Some experts pointed out that the biggest bright spot in the development of the silicone rubber industry is that it can greatly increase the domestic self-sufficiency rate of rubber. According to statistics, if the proportion of silicone rubber in China's rubber consumption is increased from 6.5 to 33% by 2020, the overall domestic self-sufficiency rate of rubber in China can be increased from about 50% to more than 80%, thus greatly easing the tight supply of rubber and reducing the production cost of rubber processing industry. It can be seen that the development of the silicone rubber industry is not only a single development of a single industry, but involves the common development of multiple industries, which has far-reaching significance for enhancing the profitability of the rubber processing industry and improving the quality level of rubber products.
     

Previous Page

Rubber sealing ring products of common sense and process problems encyclopedia?

What are the characteristics of the sealing material of the rubber seal?

Next Page

Previous Page

Rubber sealing ring products of common sense and process problems encyclopedia?

Next Page

What are the characteristics of the sealing material of the rubber seal?

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

Characteristics and uses of silica gel Silicone is a kind of rubber. The vulcanized silicone rubber has heat resistance, cold resistance, ozone resistance, atmospheric aging resistance and good electrical insulation properties. The disadvantage of silicone rubber is that the tensile strength and elongation at break are small, and the compression deformation is large. Suitable for making parts used in high temperature, low temperature, sunlight, atmosphere, ozone environment and electrical insulation parts. Dimensional accuracy and recommend marking tolerance Trajectory material is an elastomer, compared to the plastic material, the direct impact of the shrinkage rate of many and complex factors, precision than plastic parts more difficult to do accurate, in the specific design should be fully considered, there should be no high precision. If the basic size is too large to meet the dimensional accuracy required by the design, it can be solved by the method of deformation of the positioning column with the substrate. Where dimensional accuracy is required, there must be room for convenient mold repair in the design. Etched text and patterns Silicone substrate can be designed out of the trademark pattern and text, in the molding products at the same time molding out. The group and text on the products are convex and concave two types, considering the convenience of mold processing, are generally designed as convex. In order to facilitate the replacement of marks or models, the marked parts can be designed as inserts during mold design. When the product model changes, only the marked parts in the mold cavity can be replaced to meet the needs of mark replacement. As part of this type of article, it should be designed to allow the presence of flash debris at the contour of the insert tile at the marked location. For conductive rubber, the stroke is generally 0.8~1.5mm; the exhaust groove (I. e. gas pit) is designed to prevent adsorption between the PCB and the key action. For tact switches, the stroke depends on the stroke of the switch itself (and the stroke for preventing misoperation), as described later. If the substrate is not bonded to the PCB board, the structural element of the air slot can be omitted. The key design has a hand feeling problem. Different graphs correspond to different hand feelings. According to experience, when (FP-FC)/FP is 40%-60%, the hand feeling is better. Key Typical Structure and Application According to the specific occasions where the keys are used, as well as the specific requirements of the product for the service life, pressing force, and hand feeling of the keys, the structure and application of the keys are shown in the following figure. The life of the silicone key is directly related to the material and the inclined wall structure, and is determined according to the design requirements. Part of the product silicone key life reference: Remote controller: 500000 times; Telephone type: 1 million times; Laptop computers: 4 million to 5 million times; Computer keyboard: 500~10 million; The life of silicone keys for monitoring products is defined as more than 500000 times; The ordinary life of B super silicone keys is defined as more than 1 million times,

The convenience of the use of industrial silicone buttons

In order to solve the above problems and technical defects, after continuous updating and design, a multi-station silicone button trimming machine was invented, and a utility model patent was applied. The utility model relates to a multi-position silicone button trimming machine, which comprises a base, a gantry frame and four cutting cylinders, and the four cutting cylinders are arranged vertically on the top of the gantry frame in a horizontal straight line. The beneficial effect achieved by the utility model is that the structure design is reasonable. By adopting the combination design of four reinforcement tables and four cutting blades on the gantry, the device can simultaneously trim four silicone button products. Thereby greatly improving the efficiency of trimming processing of silicone products. With the continuous expansion of the silicone button market, how to improve the processing efficiency of the silicone button has made producers pay more and more attention. The trimming of the silicone button is an important step in the production process of the silicone button, and the trimming of the traditional silicone button The processing efficiency cannot be improved, which affects the overall production efficiency of the silicone button. Various types of silica gel have different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics that are difficult to replace other similar materials: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. Silica gel according to its pore size is divided into: macroporous silica gel, coarse pore silica gel, type B silica gel, fine pore silica gel. www.mingzhen2006.com

What are the molding techniques of rubber products?

Calendering: suitable for the manufacture of simple sheet, plate products. It is a method of pressing the mixture into a film through a calender called calendering. Some rubber products (such as tires, tape, hose, etc.) used in textile fiber materials, coated with a thin layer of glue, glue coating process is generally completed on the calender. The fiber material needs to be dried and dipped before calendering. The purpose of drying is to reduce the moisture content of the fiber material (so as to avoid water evaporation and foaming) and increase the temperature of the fiber material to ensure the quality of the calendering process. Dipper is the process before hanging glue, the purpose is to improve the binding performance of fiber materials and glue. Extrusion molding: Used for more complex rubber products, such as tire treads, rubber tubes, and metal wire surface coatings, which need to be manufactured by extrusion molding. The plastic mixture was placed into the hopper of the extruder. Under the extrusion of the screw, a method of continuous molding through a variety of mouth before pressing out, the rubber material is preheated to make the rubber material soft and easy to extrude, so as to obtain rubber products with smooth surface and accurate size. The rubber industry is one of the important basic industries of the national economy. It not only provides people with light industrial rubber products that are indispensable in daily life, but also provides various rubber production equipment or rubber parts for heavy and emerging industries (such as mining, transportation, construction, machinery and electronic products). It can be seen that there are many kinds of products in the rubber industry, and the backward industry is very extensive. Molding molding: can also be used to manufacture some complex shapes (such as cups, seals) of rubber products, with the help of the molding of the female and male molds, the rubber material is placed in the mold and heated. www.mingzhen2006.com

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