pvc pipe repair treatment

pvc pipe repair treatment methods are as follows :
1 stick Interface slight leakage : leakage of the adhesive bonding of the processing method can be used to trap the adhesive patch . This method must first be drained within a pvc pipe water , and to form a negative pressure within the pvc pipe , and then the adhesive note  electrofusion coupling mould on the site of the leakage gap , due to the negative pressure within the pvc pipe , adhesives sucked gap , and reached only the purpose of the drain .
2 bonding flange leaks : the water drained , lifted gate . The pvc pipe spigot end connection flange joints wipe with adhesive brushing .
3.pvc small area of ​​the pipe due to external causes damage , cracks, and the physical properties of the surrounding unchanged bonding method can also be processed ( patch ) . Method: the memory of water drain pipe , the pipe will be damaged parts of the surface roughening ; cross section of the same pipe diameter , whichever half ( covering an area larger than the damaged area ) , the inside of the selected segment wipe fight hair , damaged parts in the pipeline painting the inner surface of the tube sheet  pipe reducing coupling mould and the selected patch adhesive sheet to cover the repair pipe pvc pipe damaged parts of the surface compression and fastening pipe card or wire ( two ) .
4 between the flange and valve gasket leaking valve at both ends of the pipe section shall be adjusted to the same level symmetrical with the gate and then tighten bolts.
.. 5 welding repair method : a welded parts should be made dried , and clear their dust, oil and other fats surface ; bonding interface when welding repair , the adhesive must be cleaned before welding.
b.pvc pipes and fittings slight leakage without affecting the structural safety under conditions , can be repaired by welding rod pvc-u , the ambient temperature is not lower than 5 degrees Celsius. When using the multilayer welding , after a period of time to cool , then the  chinese mould next layer welding. When welding , the need to maintain the proper temperature and pressure , hot air temperature should be 260 degrees -290 degrees Celsius. Overheating of the material easily deformed or carbonized high pressure may cause rupture of the weld after cooling .
c. bead should be beyond repair parts around the edge of each 9mm-13mm.

Auto Mould become the focus of China's market

At present, China's high profile car cover mold almost entirely dependent on imports, and medium-sized plastic mold and external accessories is also a great demand for the development of large-scale high-tech precision automobile, motorcycle cover mold and medium-sized interior Pipe Plug and exterior trim plastic mold is an important task in the future of the automotive, motorcycle mold. Auto mold is the top priority of China's mold market
Because automobile, motorcycle industry is one of the five pillar industries of the national economy, with the Shorter Pipe Clip  rapid growth of China's automobile, motorcycle exports, plastic molds and metal instead of wood, plastic mold will demand in the automotive and motorcycle industry greatly increased, especially in the development of new materials and new molding technology, making the demand for plastic products in the automotive and motorcycle industry is growing.
In a certain extent, automobile, motorcycle plastic products to reflect the amount of a country's level of car, motorcycle industrial development. The average use per vehicle has reached about 100 kg of plastic, but they are the instrument panel and other interior trim plastic coupler fittings mould  parts used in all plastic products. Currently, the automobile, motorcycle plastics applications have been developed by the ordinary decorative pieces to the structure, functional pieces. The use of plastic materials has also been extended to the ordinary plastic with high impact resistance even better composite or plastic alloys. With technological innovation and the development of mold market will be more gratifying news came.

Pay close attention to the development of plastic mold manufacturing high-end products

China's plastic mold industry has grown rapidly in recent years, mainly in the plastic mold products to optimize and upgrade the quality of the technical aspects. However, although the manufacturing cycle mold plastic products in shrinking, but still in the manufacturing and foreign advanced level there is still a long gap. At present, China's consumption of plastic has been ranked first in the world, but per capita consumption is only 1/7 industrial countries, 1/4 Industrial moderately developed countries, this aspect of our existence reflects the gap, on the other hand 2 inch pvc coupling mould  China's industrial and demonstrated the tremendous development of plastic mold industry empty plastic "Currently, our country needs strong mold industries including aerospace, defense industry, rail vehicles, construction machinery and other industries, especially in a total investment of 220 billion yuan Beijing-Shanghai high-speed rail project, more than 30 billion yuan investment in large-scale projects, such as aircraft, will give the plastic mold industry has brought new challenges and opportunities. "Secretary-General of the International Mould & Metal & Plastic Industry Suppliers Association Luo Baihui that the development of China's plastic mold industry must rely on national key construction projects, to develop precision plastic injection molds, mold coverage and large injection mold; simultaneously by accelerating corporate mergers and acquisitions and product upgrading, narrowing the distance between the countries, so that China's sustained and healthy development of the plastic mold industry. A high proportion of mold enterprise technical staff, the majority of companies in more than 25%, some 50% or more, many companies often interchangeable workers in technical and production jobs. Training of trainers and high-end CNC machine operation skills of domestic mold lack of high-tech enterprise employees processing technology, in a way that also affected the utilization  plastic pipe fitting mould of high-end equipment. Die low proportion of technical personnel of enterprises, most enterprises between 15% to 20%, and lower integrated development capability.
Mold factory often and materials manufacturers, product manufacturers to develop; injection molding factory with material manufacturers will jointly develop new models; brand plastic vendors and brand car companies jointly developed a new plastic and steel products. Such strong cooperation, so that enterprises have a strong R & D capability. Chinese enterprises in innovation, greater R & D capability gaps. "
China's plastic mold industry current and future development, to work closely with key project of the steel, automobile, petrochemical, shipbuilding, light industry, textile, nonferrous metals, electronic information, these nine national defense industries, to enhance 2 inch pvc coupling mould  large molds, precision injection molds, upscale standard mold manufacturing capacity; achieve localization tool steel and high quality, improving mold material supply system to provide a more comprehensive variety of sizes and grades of material, and greatly reduce mold manufacturing enterprises preparation cycle; improve mold new material , new plastic molding process and a new high-strength, high toughness, high temperature plastics research and development capabilities; improve the overall level of enterprise information management and integrated manufacturing mold.

China's mold industry technology needs further breakthroughs in local

 China is a big country, but also a big consumer of industrial products, mold development as one of the essential modern industrial equipment, wide range of applications. At present, China's mold industry market is very large, and each year was 15% to 20% trend growth, mainly due to the development of China's automobile, home appliances, IT industry, packaging, building materials, daily necessities, such as mold large user industry. Unfortunately, although the domestic market demand remains high demand for mold, but because of mold technology compared with the current PE Electrofusion Pipe Fitting  international level there are still some gaps, resulting in mold manufacturing technology behind many of the independent development of the industry has been greatly restricted, some of the high-tech mold is still dependent on imports, coupled with advanced technology companies in recent years, more emphasis on the protection of the mold which caused some enterprises to introduce technical difficulties. For this reason, and to improve the level of China's mold industry Manufacturing became imperative thing. With the continuous development of the total economy and industrial products End Cap mould  and technology, resulting in all walks of life for a growing demand for molds, technical requirements are also increasing focus on developing high-tech mold and constantly improve the level of standardization of the mold became the second five development priorities. Especially for tools need to rely on high-tech products as precision die mold industry, such as the computer's chassis, connectors, and many components in the manufacture of precision plastic mold and precision stamping dies, are electronic products can not be acquired equipment Today, the rise of the tech boom mold industry, to further accelerate the reform of China's mold industry update path, and follow the mold industry restructuring  Bridge Bend mould led the entire industry into a new round of production dynasty, combined with high-tech mold production technology, enabling enterprises to be more accurate, more efficient completion of product design and production process, close to the pace of international markets.