Silicone hoses have a wide range of applications. It can be seen in industrial, medical, food, aerospace and other industries. It has the characteristics of high temperature resistance, UV resistance and aging resistance. The most important thing is that it is colorless, odorless, and a green and environmentally friendly product. So do you know the Silicone hose manufacturing process? Today OrientFlex silicone hose manufacturer to share with you.
The silicone hose manufacturing process:
1.Selection of raw materials
There are two main types of silica gel raw materials: natural silica gel and synthetic silica gel.
2.Rubber mixing
The raw materials for mixing rubber are mixed with double-24 or platinum vulcanizing agent or silica gel masterbatch in a double-stick rubber mixing machine, and pressed into a layer of uniform thickness of silica gel extruded material.
Mixing generally adopts the method of mechanical mixing, and the silica gel raw material is put into a mixer for stirring. The mixing time is generally 30-60 minutes.
3.Extrusion molding
Install the mold on the head of the silicone extruder. The compounded rubber is divided into shapes of the same size and length, which is convenient for feeding from the inlet of the extruder. Then feed through a silicone extruder, extrude a very soft silicone hose, put the silicone hose into an 8-meter long drying tunnel, and vulcanize it at high temperature. The silicone hose coming out of the drying tunnel can be semi-finished and then wrapped.
4.High temperature vulcanization
Put the wound silicone hose into the oven, the ordinary silicone is 180 degrees, the gas-phase silicone hose is 200 degrees, and the high temperature is 2 hours, and the secondary vulcanization is carried out to remove the odor on the silicone hose, prevent frosting and change yellow.
5.Follow-up processing
The rest is to carry out subsequent processing such as cutting or bonding according to the length required by the customer. Then pack and ship to customers as required.
The key aspects of the silicone tube manufacturing process
Selection of raw materials
The quality of silicone raw materials has a great impact on the performance of silicone hose, so choosing the right raw materials is the key to manufacturing high quality silicone hose.For example, for silicone hoses that need high temperature resistance, you can choose natural silicone; for silicone hoses that need corrosion resistance, you can choose synthetic silicone.
Dosing
Batching should be carried out according to the specific application requirements of the silicone hose, the type and amount of additives will affect the performance of the silicone hose.
Mixing
The purpose of mixing is to make the raw materials evenly mixed to ensure that the performance of the silicone hose is uniform.Mixing generally adopts the method of mechanical mixing, and the silica gel raw material is put into a mixer for stirring. The mixing time is generally 30-60 minutes.
Vulcanization
Vulcanization is a key part of the silicone hose manufacturing process, vulcanization time and temperature will affect the performance of the silicone hose.The vulcanization time is generally 1-2 hours, and the vulcanization temperature is generally 150-200 degrees Celsius.
Post-treatment
The purpose of post-processing is to cut, punch and print the silicone hose according to the requirements of different applications.
The above is the silicone hose manufacturing process shared for you. I hope this sharing will be helpful to you. If you find it useful, you can share it with your friends.