South Asian pipe is made by using PVC resin as the main raw material and adding a small amount of additives through extrusion. Additives include: stabilizers, lubricants, colorants, fillers, and the like. If there are special physical properties, the modifier can be added in an appropriate amount. But never add plasticizers.
Founded in 1954, Formosa Plastics was founded by Wang Yongqing and Wang Yong in Kunzhong. More than half a century of development has become Taiwan's largest private enterprise. By the end of 2009, it has a total of more than 100 domestic and overseas related enterprises including Formosa Plastics, South Asia, Taiwan, and Formosa Petrochemical, and has a multi-angle business plan, spanning oil refining, petrochemical, plastic, textile, fiber and electronics. , energy, transportation, machinery, medical, biotechnology and other fields.
The total number of employees is more than 95,000, the capital is 592.4 billion yuan, and the total assets are 2.28 billion yuan. The production bases at home and abroad cover Taiwan, the United States, China, Vietnam, the Philippines and Indonesia.
First, the characteristics of South Asia PVC pipe:
1, light weight, convenient handling: PVC material is very soft and light, handling, loading and unloading, convenient construction, can save labor.
2, excellent chemical resistance: PVC pipe has acid resistance, alkali resistance, corrosion resistance, and is suitable for the chemical industry.
3, the fluid resistance is small: the wall of the PVC pipe is smooth, the resistance to the fluid is small, and its roughness coefficient is only 0.009.
4. High mechanical strength: PVC pipe has good water pressure resistance, external pressure resistance and impact strength, and is suitable for various conditions.
5, good electrical insulation: PVC wire tube superior electrical insulation, suitable for wire / cable conduit, and the construction of wire and tube.
6, does not affect the water quality: PVC pipe confirmed by the dissolution test does not affect the water quality, is the best pipe for the current tap water pipe.
7. Simple construction: The construction of PVC pipe joints is quick and easy, so the construction cost is low.
Second, the scope of application of South Asia PVC pipe:
Waterworks, electrical engineering, construction engineering, sewerage engineering, telecommunications engineering, sinking engineering, salt water engineering, natural gas engineering, chemical plants, papermaking plants, brewing fermentation plants, electroplating plants, agricultural fields, mines, aquaculture, highways Engineering, golf course engineering, plastic bottles for fisheries, sewage treatment projects, garden spray projects
Third, South Asia PVC pipe should pay attention to tensile strength in pipeline design
1. The tensile strength of the South Asian tube is obtained by measuring the maximum load at break of the test piece at a pulling speed of 10 mm/min, divided by the minimum cross-sectional area of ​​the test piece.
2. The tensile strength of the South Asian tube is closely related to the temperature change. When the temperature is increased, the tensile strength and the elastic modulus will decrease relatively. When the temperature is lowered, the tensile strength and the elastic modulus will increase, and the temperature will be lower. At 0 °C, there will be brittleness gradually, so the temperature design should be noted in the pipeline design.
3. When the temperature is 20 °C, the tensile strength can reach 530kg/cm2, and at 40 °C, it will drop to 400kg/cm2.
4. When the load time is prolonged, its strength gradually decreases with time, and the elongation rate increases. Therefore, the South Asian tube still needs to consider the strength change problem of long-term use in pipeline design.
5. When the rate of decrease is also getting smaller and smaller with time, it will hardly decrease after about 1000 hours. Its long-term tensile strength is about 1/2 of the instantaneous tensile strength, which is the long-term strength of the South Asian tube, or the durability strength, which is the basis of the general design.
6. The design life of the South Asian tube is set at 50 years, but if the South Asian tube is buried underground without exposing the piping, its life should be more than 50 years.
Semi-Automatic Powder Fastening Tool
Applications:
- Widely used for concrete, metal, brickwork and rocky structures
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Technical Parameters:
- Equipped with four power levels of (S1JL) Powder Loads
- Equipped with nails less than 62mm
Features:
- Automatic feeding
- Various of applications
- Adjustable powder-actuated fastening tool
Semi-Automatic Powder Fastening Tool
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