PE mold and PPR mold. PVC mold is the three most commonly used molds in various plastic pipe fittings. Each of these three molds has its own characteristics. PE mold, as a pipe fitting mold, has relatively stable physical properties and a relatively wide range of applications. PE mold has the following characteristics. Pe Blow Mold,Injection Blow Molding Machine Mold,Preform Mould ,Blow Mold Ningbo Chenwei Machinery Technology Co.,Ltd , https://www.chenweimachine.com
With the shift of oil exploration to oil fields in the interior and offshore oil fields, and the development of thermal power and hydropower and nuclear power from 300,000 kilowatts to less than 300,000 kilowatts in the power industry, the performance and parameters should be changed accordingly in accordance with changes in the application fields of equipment. Urban construction systems generally use a large number of low-pressure valves, and are developing towards environmental protection and energy-saving, that is, the low-pressure iron gate valves used in the past have gradually shifted to environmental-friendly rubber sheet valves, balancing valves, metal sealing butterfly valves and midline sealing butterfly valves. Oil and gas transmission projects are developing in the direction of pipelines. From the perspective of energy conservation, steam traps have to be developed and developed to subcritical and supercritical high parameters.
The construction of the power station has grown to a large scale, so the sum of large diameter and high pressure is needed, and at the same time, valves need to be opened and closed quickly. The needs of a complete set of projects evolved from a single species to multiple varieties and multiple specifications. The need for a valve for an engineering project is increasingly provided by a valve manufacturer.
1: The consumption of pressure is small, and the output of PE mold is relatively high.
2: PE extrusion die can be used as inner and middle layer pipes, and can also be used as outer layer pipes for production. Pipes with different pressure requirements can also be used.
3: When a certain pipe melt temperature is reached, the PE extrusion die makes the melt flow speed reach the expected mechanical uniformity, which can achieve thermal uniformity.
4. The pipes directly used by PE extrusion fittings are various water supply pipes and gas pipes. The pipes produced by PE moulds have strong advantages in connection and connection performance. Due to their high efficiency of moulds, the price of relevant pipes is lower and the quality of products is more reliable.
5: It can realize the size control of multiple diameters in one model, which can save the production cost.
6: PE mold can also use heating thermostatic device in the design of caliber above 200. This thermostatic device mainly includes mold temperature machine and internal heating device, which can produce the best appearance.
PE pipes have developed well in various pipelines, and the sales of relevant PE moulds have also improved significantly.
China's hardware valve market how to solve the two major contradictions
In general, China's hardware valve prices are relatively stable, although each year, slightly ups and downs, but the magnitude is very small. In the North China valve market, many companies were found to be profitable and shoddy, seriously disrupting the valve market. The main problems in the valve market are as follows: First, some operators purchase brand names and certifications from well-known manufacturers without purchasing plant names, causing serious damage to the reputation of qualified valve companies. Second, refurbishment of the valve, some operators re-painted the second time after the waste valve re-painted, giving the project quality a serious security risk.