Demark Machinery, specialized in manufacturing @ 72 cavities PET Preform Moulds@(PET Preform Molds@) injection molding system, consists of technologists with rich experience, and senior engineers with master's degree and professional in 3D. We invite many technical committee members and senior professors in mould line are as the technical consultants for our company. Various kinds of processing equipment and detection measurement instrument are imported, as well as special drawing soft is applied in designing performs, samples and manufacturing testing mold. We supply special technology training and other good after-sales service.
A. Capacity of Research and Development @ 72 cavities PET Preform Moulds
Demars company has a powerful team for research and development, which is capable of manufacturing the perform molds with one cavity to ninety-six cavities including the injection system. At the same time we can manufacture perform molds especially according to customers' injection molding machines. We also design cold parts, hot runners and other main exchangeable components to fix on the imported perform molds.
B. Mould Features @ 72 cavities PET Preform Moulds
1. Features of the perform mold. No cutting of valve gate is employed to reduce the labor cost.
2. Advanced hot runner system assures lower level of AA value.
3. Reasonable- designed cold water channels increase cooling effect and shorten the cycle time.
C. Material @ 72 cavities PET Preform Moulds
1. The main components of perform molds are made of S136 material (Sweden ASSAB).
2. The mold base is made of imported P20. Plate method avoids corrosion efficaciously and assures long life service of the perform molds.
3. German Vacuum stove is imported for heat treatment of the components, which assures the hardness of components HRC45-HRC48.
D. Advanced Processing Equipment  @ 72 cavities PET Preform Moulds
Many machine tools are imported from America and Japan, such as Machine center, CNC lathers, EDM and so on. All of these increases processing precision, good interchangeability and low eccentricity ≤ 0.10mm (perform length≤ 100).
E. Electric Heating Components @ 72 cavities PET Preform Moulds
1. German Hotset heating components.
2. German intelligent temperature controller (PID continuous power controlling).
3. Offering temperature controller and voltage controller according to customers' requirement
F. Perfect Inspection Method @ 72 cavities PET Preform Moulds
Inspection tools include projector, hardness tester, stress tester, eccentric tester, electric balance and other inspection tools.
The screw neck is made and inspected strictly by the standard of Coca cola and the screw neck has been up to the standard of Coca cola.
G. After-Sales Service @ 72 cavities PET Preform Moulds
Technologists professional in after-sales line and excellent credit assures stable operation of the machines. Techinician is available for oversea technicial support.
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Ball valves are usually used for shutting off or connecting the medium flow.
The maximum permissible leakage of the valve with non-metal elastic seals is zero, and that of the Ball Valve with meal seals is 0.1xDNmm3/s.
Therefore, acceptable valves with metal seals possibly have slight leakage. Hence, in the applications where there must not be any leakage,especially at the pipeline ends, ball valves with soft seals should be used.
Nominal pressure of brass ball valve is 1.6MPa, 2.0MPa and 2.5MPa. When the ball valve is used for saturated steam, the pressure of the saturated steam should be ≤0.6MPa.used.
Ball Valve
Ball Valve,Brass Ball Valve,Brass Gas Ball Valve,Mini Brass Ball Valve
Ningbo Jiekelong Precision Manufacturing Co., Ltd. , http://www.jklvalve.com