From the choice of materials, it can be divided into externally attached rubber waterstop, externally attached plastic waterstop, externally attached waterstop joint and medium buried water swelling waterstop. From the structural form, it can be divided into EB type waterstop and EP type waterstop. It is worth noting that since the external waterstop is set at the upstream of the concrete, it is often required to weld and seal with the waterproof board during construction. External rubber waterstop can be widely used in various types of concrete structures, such as water retaining dams, reservoirs, subways, culverts, tunnels and other underground projects. In some construction projects, deformation joints and construction joints are often left in the casting due to the failure of continuous casting, or the deformation of the foundation, or the thermal expansion and contraction of the concrete components caused by temperature changes. The leakage prevention problem of these joints must be solved by sticking rubber waterstops at the deformation joints, It can not only prevent groundwater or external water from leaking into the building structure, but also prevent water inside the building from leaking to the outside. The construction unit of waterstop must take reliable fixing measures when binding reinforcement and erecting formwork, so as to avoid displacement during concrete pouring and ensure the correct position of waterstop in concrete.
It can be divided into natural rubber waterstop, neoprene waterstop, nitrile rubber waterstop, EPDM waterstop, etc. according to the different materials selected for the products
Back stick rubber waterstop is mainly used for foundation works, underground facilities, tunnel culverts, water conveyance aqueducts, water retaining dams, etc., which are set in construction joints and deformation joints when concrete is poured in situ, and are integrated with concrete structures, to ensure the service life of engineering construction.
Back sticking rubber waterstop is also called external sticking rubber waterstop. It is a waterstop structure set outside the concrete deformation joint and settlement joint wallboard (upstream surface) of underground structures. It has the ability to adapt to concrete expansion and deformation with the material elasticity and structural form of waterstop.
Back stick waterstop is classified according to the setting position in concrete, also called external stick waterstop, which is used to prevent water in concrete expansion joints. The back stick waterstop can be processed into natural back stick waterstop and EPDM back stick waterstop according to the production of raw materials. According to the shape, it can be divided into EB type (back mounted perforated waterstop in the middle) and EP type (back mounted perforated waterstop in the middle).
Let's understand the material composition of PE coiled core pipe. The main body of PE coiled core pipe is made of polyethylene (PE) material. Because polyethylene is an environmentally friendly, non-toxic, tasteless material with excellent physical properties and chemical stability, it can be used safely. Moreover, PE material has good toughness and tensile strength. In addition, it also has wear resistance, impact resistance, oxidation resistance and other properties, so PE coiled core pipe can be used safely and reliably in various harsh environments.
Then, let's understand the process of making PE coiled core pipe. First, put the required PE material particles into the injection molding machine for heating and melting, push the molten plastic into the injection mold to form cylindrical parts of a certain shape, then cut these cylindrical parts through the cutting machine to form a PE coiled core pipe shell of a certain length, and then shape the shell by heating the end, etc, Finally, the formed PE core pipe is cut by a cutting machine to obtain PE core pipe products with consistent length and appropriate model. The whole process is simple and clear, time-consuming and high yield.
Let's summarize the manufacturing process and material advantages of PE coiled core pipe. The production process of PE coiled core pipe can be completed through simple injection molding, cutting, molding and cutting operations, and each step takes very short time, greatly improving the production efficiency. At the same time, the PE coiled core pipe is made of environment-friendly PE materials. Through processing, molding and other processes, the PE coiled core pipe not only has the characteristics of portability, environmental protection, corrosion resistance, strong toughness, but also can be used safely and reliably, which is favored and praised by the majority of users.
The manufacturing process and material advantages of PE coiled core pipe cannot be ignored, and the application of PE coiled core pipe products is more and more extensive, which shows that PE coiled core pipe has become an important product in the coiled core pipe industry.
1、 Basic characteristics of high temperature resistant dot adhesive stickers High temperature resistant dot adhesive stickers are made of special materials, which can maintain stable adhesion performance under high temperature environment.
It has the following basic characteristics: 1. High temperature stability: high temperature resistant dot adhesive can maintain the adhesion under the environment of hundreds of degrees Celsius, and is not easy to fall off or fail.
2. Good chemical resistance: this adhesive has good resistance to various chemicals and is not easy to be corroded or dissolved.
3. Good insulation performance: high temperature resistant dot adhesive has excellent insulation performance and is suitable for the bonding requirements of electronic and electrical equipment.
4. Easy to operate: This adhesive is dot type, easy to use, and easy to control the number and position of adhesive.
2、 High temperature resistant dot adhesive is widely used in the following fields due to its unique performance: 1. Automotive industry: High temperature resistant dot adhesive can be used for various bonding needs in the process of automobile manufacturing, such as fixing and sealing of engine parts, exhaust pipes, sensors, etc.
2. Electronics industry: In the manufacturing of electronic equipment, high-temperature resistant dot adhesive can be used for the fixation and connection of chips, capacitors, resistors and other components to ensure the stable operation of equipment in high-temperature environment.
3. Aerospace field: The high temperature and chemical resistance of the high-temperature resistant dot adhesive makes it an ideal choice in the aerospace field, which can be used for the manufacturing and maintenance of aircraft, rockets and other aircraft.
3、 Advantages of high temperature resistant dot adhesive tape Compared with traditional adhesives, high temperature resistant dot adhesive tape has the following advantages: 1. High temperature stability: high temperature resistant dot adhesive tape can maintain a stable adhesive force in high temperature environment to avoid falling off or failure caused by temperature rise.
2. Easy to operate: the dot design makes the use more convenient and fast, and it is easy to control the quantity and position of adhesive, so as to improve the production efficiency.
3. Wide applicability: high-temperature resistant dot adhesive is applicable to a variety of materials and surfaces, and can meet the bonding needs of different fields.
4. Good chemical resistance: this adhesive has good resistance to various chemicals, and can maintain stable adhesion in harsh environments.
4、 Precautions for using high temperature resistant dot stickers When using high temperature resistant dot stickers, the following precautions should be taken: 1. Ensure that the bonding surface is clean, dry, and free of oil and dust, so as to know the bonding force of high temperature resistant dot stickers.
2. Select the appropriate model and specification of high-temperature resistant dot adhesive according to the actual needs to ensure that it meets the use requirements.
3. Read the product manual carefully before use to understand the use method and precautions of adhesive tape.
4. During the bonding process, avoid overexerting or stretching the adhesive to avoid affecting the bonding effect.
5. Avoid direct sunlight and high temperature during storage, and keep dry and clean.
As an important industrial adhesive solution, high temperature resistant dot adhesive has attracted extensive attention due to its unique high temperature resistance and wide range of applications.
In the process of use, it is necessary to select appropriate models and specifications, and follow the instructions to ensure the bonding effect and safety.
