The production process of silicone products, what are the production processes of silicone products,

Just returned the question, agreed with the upstairs, simple and straightforward. So it depends on your needs, what kind of rubber you want, liquid or solid (rubber compound), how much tension, how many degrees Celsius. Betley's standard production process can be consulted and viewed.

There are two main categories of silicone products. One is solid glue products, and the other is liquid glue products.

For solid rubber products, the raw materials are solid, which are mixed by a kneader and then put into a mold, and molded at a certain temperature under the pressure molding machine. When demolding, it is similar to plastic products, and it is also necessary to clean the mold.

The raw material of liquid glue products is a viscous liquid, which is generally divided into two components: AB. The two components are mixed with a special injection machine and injected into a vacuum mold under a certain pressure, and formed by pressure at a certain temperature. There is also a process of demoulding.

First of all, the raw materials, the raw materials need to be mixed, colored, added vulcanizing agents, and finally sliced, silica gel products are very important to make raw materials, so they are specially listed. In the production of silicone products, the raw materials are in the mold, under the conditions of high temperature (120-185) degrees and high pressure (50-250kgf cm), after a certain vulcanization time, the product is formed. If you have any other questions, please hi me.

What are the processes required for silicone molding?

Liquid silicone is added to the molding and condensation type, no matter which method of operation it is, the difference is that the ratio of silica gel to curing agent is different, and the ratio here refers to the weight ratio and non-volume ratio, which is what we should pay attention to.

The ratio of silica gel to curing agent is 1 1, and the ratio of coagulation silica gel to curing agent is 10 0 2.

The operation process of silica gel can be divided into three types: pouring mold, brush mold and slicing mold. Here, the use of silicone is explained with agglomerated silicone.

1.Silica gel and curing agent are mixed and stirred in a ratio of 100 2, and attention must be paid to uniform stirring to prevent the non-curing phenomenon of silica gel.

2.The stirred silica gel is placed in a vacuum defoaming processor to completely eliminate air bubbles and make the product smoother and bubble-free. If there is no vacuum machine, the curing time of the silicone can be extended, and air bubbles can be discharged, but the effect is not very ideal.

3.The mold has been made, the mold frame is coated with a release agent, and the mold is fixed in the middle of the mold base, leaving a certain distance. Slowly and smoothly pour the bubble-free silicone into the mold frame until the silicone completely covers the mold, then wait quietly for it to solidify.

If the addition molding silicone can also be put into the oven to heat and cure, it can be completely cured in about 10 minutes).

4.After the silicone is completely cured, the mold is demolded, and the edge of the silicone mold is treated after taking out the silicone mold to complete the manufacture of the silicone mold. In order to achieve the best use effect of the silicone gel mold, it is recommended to leave the silicone mold for 24 hours before use!

5.Liquid silicone is finished.

What are the production processes, steps, and whole processes of silicone products?

First: the artwork design of the product As the saying goes: a high-rise building rises from the ground, and the house must have a drawing, and it cannot be built without a drawing, and the silicone products are the same, The product shape and structure design is generally based on the model provided by the customer for drawing the file, generally using plane or three-dimensional drawing software, such as CAD or Pro E software production, if the customer can not provide the model, we can cooperate with the customer to complete the design and production of the product drawing file free of charge according to the customer's requirements and description.

Second: open the mold is the mold designer according to the design of the drawings to compile the CNC mold program, and then use the computer gong CNC rough, and finally use the spark machine, carving machine for finishing, and then the mold master according to the product surface requirements for mold surface treatment, there are mold saving, polishing, electroplating, etching and other treatments. The production technology of the mold of some silicone products is relatively high, and the mold opening time is relatively long; Generally, the mold opening period is calculated according to eight days.

When the mold comes out, it will be produced quickly. Third: Mixing and discoloring according to the customer's product performance requirements for the production of materials used in the production of the mill for mixing, processing materials commonly used are:

Silicone, nitrile rubber, ethylene propylene rubber, fluoroelastomer, etc., for those with color requirements, according to the color number on the specified international Pantone color card, our company's color mixing ratio is aligned, and the color difference is very small. Fourth: After the rubber material is mixed, it is parked for 24 hours according to the regulations, and then the rubber is cut and prepared according to the requirements of the production and molding operation instructions, and the cut rubber material is weighed and placed on the shelf for later use.

Fifth: the upper mold molding production will be done according to the production order to do the mold installation online production. After the mold is installed, the process parameters of the machine are set and heated according to the molding instruction, and the production can only start after the mold temperature reaches the set parameters.

Sixth: IPQC inspection silicone products after the production of on-site quality inspectors, mainly to see whether it meets the quality requirements of the product, such as appearance, size, function and other requirements, unqualified products will be all scrapped IPQC quality inspection seventh: trimming silicone products will be produced with raw edge water materials, etc., after the IPQC quality inspection is qualified, the product will be sent to the post-process department for trimming.

Eighth: After the finished product is overhauled, it is the finished product. It is also necessary to send the finished product back to the quality inspection department to check the quality of trimming, whether there are unqualified products, and if there are any, they will be scrapped according to the working procedures.

Ninth: After the product inspection of the repaired side of the packaging department is qualified, it will be packaged according to customer requirements. The packaging is divided into two types: PP bag, individual packaging and naked.

Generally, it is packed according to customer requirements. Tenth: inspection before sealing the packaging is completed by the quality inspection department to check the quantity, if there is no problem, the sealing will be carried out and sent to the warehouse for delivery.

Please hi me, I tell you in detail!

Silica gel is a porous spongy elastomer made by foaming and vulcanizing at room temperature with condensed hydroxyl terminated silica raw rubber as the base material, hydroxyl hydrogenated silicone oil as the foaming agent, vinyl platinum complex as the catalyst (the heating catalyst is dibutyltin dilaurate). In order to improve the quality of the foam, some other components, such as silicone oil, are added, so that the vulcanization process produces more gas.

Silicone is an ideal lightweight packaging material due to its high thermal stability, good thermal insulation, insulation, moisture resistance, shock resistance, especially good shock resistance at high frequencies.

Silica gel is a desiccant, a small package desiccant with fine-porous silica gel as raw material, and it is also the most commonly used desiccant. The desiccant we generally use is silica gel desiccant. Fine-porous silica gel is a colorless or yellowish transparent or translucent particle with many micropores inside and a surface area of 700 square grams.

When it absorbs water and reaches a saturated state, there will be no changes in surface and morphology. It has the characteristics of fast moisture absorption and no deformation. It is non-toxic, odorless, has a large internal surface area, and has a high adsorption capacity for water vapor and other condensable vapors.

Generally speaking, silica gel can be divided into two categories: organic silica gel and inorganic silica gel according to its properties and components. Inorganic silica gel is a highly active adsorption material, which is usually prepared by reacting sodium silicate and sulfuric acid, and through a series of post-treatment processes such as aging and acid foaming. Silica gel is an amorphous substance with the chemical formula MSI2 NH2O.

Insoluble in water and any solvent, non-toxic and tasteless, chemically stable, does not react with any substance except strong alkali and hydrofluoric acid.

1. Use a plastic bowl to hold 500g of glue, reinforce the chemical agent at room temperature, and stir well for later use.

2. Lubricate the master mold blank with release agent.

3. The lubricated mother billet is surrounded by wooden strips, and the wooden strips should also be treated with release agent, and the gap in the middle should be 2-4cm.

4. Pour the prepared glue slowly along a fixed perfusion point, and from time to time to remove the air inside.

After the minute glue is fully cured, it is surrounded by wooden strips, leaving a 4cm gap, and the log strips are dismantled.

6. Inject 1000g of gypsum powder into the wooden strip frame after mixing it with water, and fill it until it is full (the wooden strip frame should be divided into two parts with plastic sheets to facilitate mold removal).

After a few minutes, the wooden strips are removed and the mold is completed. Note:

1) The amount of curing agent should be determined according to the temperature, and the high temperature will be reduced. If the curing agent is used excessively, the mold will become hard and brittle; If the hardener is used too little, the operation time will be extended.

2) In order to prevent the change of the physical properties of the mold silicone, it is recommended not to add silicone oil.

3) In order to achieve the best use effect of your mold, please store the mold for at least 24 hours before use.

4) Hard molds can also be made of resin.

I often hear them say that the chemical composition of silica gel is n silicon with n water, but in fact, silica gel in a broad sense often contains silicone rubber, and LED silica gel also includes methyl and phenyl groups. The characteristics are different, so the use is also different, if you need a detailed answer, you can consult the silicone supplier.

Silica gel (silica gel; Silica) alias: silicate gel is a highly active adsorption material, which is an amorphous substance, and its chemical formula is MSIO2·NH2O; It does not react with any substance except strong alkali and hydrofluoric acid, is insoluble in water and any solvent, is non-toxic and tasteless, and has stable chemical properties. Various types of silica gel form different microporous structures due to their different manufacturing methods.

The chemical composition and physical structure of silica gel determine that it has the characteristics that many other similar materials are difficult to replace: high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength, etc. Silica gel is divided into the following according to the size of its pore size:

Macroporous silicone, coarse-pore silicone, B-type silicone, fine-porous silicone, etc.

The principle is silicone oil cracking, and the specific situation depends on the application.

Wondering about bai

How do we often see and use du silicone products to produce dao? Let's take a look at the introduction of the next section, genus.

Let you know it better.

It is understood that there are two methods for the production of silicone products, one is the product molded with mixed rubber in the solid state, and the other is the product of liquid silicone rubber injection molding. What are the differences between these two methods?

The silica gel products made by the first process are vulcanized with peroxide, which requires a variety of processes such as rubber mixing, refining, trimming, weighing, molding, and tearing flash. This process is used to produce silicone products, which are mainly used in low-end silicone product applications.

Silicone products made by the second process are directly bought back two-component sealed barrel silicone and directly produced with a liquid silicone rubber injection molding machine, after loading the machinery, the flow of the entire material is carried out in a sealed state, without manual intervention, so it will not be polluted. The materials used in this process are all made of platinum as vulcanizers, which are very environmentally friendly. It is widely used in high-end industries such as medical treatment and infant products.

The equipment required for silicone production is as follows:

1. One rubber mixer, one electronic scale, and one cutting machine are required for material preparation.

The rubber mixer is used to add vulcanizing agents, color pastes and other additives to the raw materials, which is a process that cannot be omitted.

Cutting machine, used to cut the rubber material into the size and weight required for molding, if only do some silicone rubber miscellaneous parts, you can use the manual way to draw out the rubber material, and then use the balance to weigh the weight can also meet the molding needs, but to do silicone buttons, especially the silica gel buttons with higher load requirements or more colors, it is recommended to buy a cutting machine to cut the rubber material, not only cutting accurately, but also extremely high efficiency.

Second, the molding needs a sandblasting machine, a plate vulcanizing machine (hydraulic press), an air compressor, if you want to produce conductive rubber buttons, you must also buy a vacuum pump.

Sandblasting machine, forming mold after a period of production, the surface will accumulate some dirt, affecting the production, then the mold needs to be cleaned, and the sandblasting machine is a necessary machine for cleaning the mold.

Plate vulcanizer (hydraulic press), which is a necessary equipment for the molding of silicone products, and the pressure, mold temperature, vulcanization time and other conditions required for molding are provided by this equipment.

The function of the air compressor is to compress air and store high-pressure gas, and its function is to assist in demoulding.

Vacuum pump, if it is the production of conductive adhesive buttons, then it may be necessary to place conductive carbon particles on the mold, at this time, you need to use the carbon particle fixture, first use the suction provided by the vacuum pump to adsorb hundreds of carbon particles on the carbon particle fixture, and then put it into the molding mold at one time. The operation is convenient and simple, and the efficiency is high.

As for silk screen printing, spraying, laser carving and other processes can be outsourced in the early days of the establishment of the factory, the capital calculation:

The 6-inch rubber mixer is about 30,000, the CNC cutting machine is about 30,000, the plate vulcanizing machine is about 100,000, the sandblasting machine is about 10,000, the air compressor is about 10,000, the vacuum pump is about 10,000, and it needs about 170,000, and then it is equipped with some hardness testers, calipers, load meters and other testing equipment, which needs about 180,000.

There is a lot of silicone production equipment here, you can take a look at what you need.

What a thing. I hope I can help you.

Silica gel process: mixing, cutting, vulcanization.

Equipment required: mixer, cutting machine, vulcanizing agent.