Vacuum valve design considerations and structural calculation method

Vacuum valve is an important component of the vacuum system. The size of the conductance of a valve forming part of a pipeline is an important performance parameter. For valves that operate primarily as a gas switch, the seal performance of the valve plate closure is also one of the key performance parameters. The sealing performance is measured by its leak rate. For the main valve used to regulate the size of the air flow, to adjust the accuracy and scope of gas flow, it is an important performance parameters. For the all-metal ultra-high vacuum valve, each shutdown is stable performance? Whether the service life is long? Is its main performance indicators.

EDM Graphite

EDM graphite, also known as graphite block for EDM, is a new type of material, which is now more and more widely used in the precision mold processing industry. At present, in mold processing plants in developed European countries, more than 90% of mold processing electrode materials are graphite. Copper, the once dominant electrode material, has almost lost its advantages compared with graphite electrodes.
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Our isostatic graphite and Molded Graphite were tested at the National Electrical Carbon Products Quality Supervision and Inspection Center. The main physical and chemical performance index as follows: the compressive strength--125 mpa, shore hardness -- 65 degrees, resistivity --12 mu Ω m. At the same time, the 10
μm,8μm,6μm,4μm products have already began Large-scale production,.and unanimously acknowledged by customers. The 2μm,1μm graphite products are under trial. Our company high quality of isostatic pressing special graphite yield above 90%, far ahead of industry the yield of 70%, the first in the country.

Company main products:

1.Isostatic Graphite Block

2.Molded graphite block

3.Graphite rod

4.Graphite tube

5.Graphite plate

6.Graphite Parts

7.Graphite crucible

Customized High Pure and density graphite products/graphite block for EDM

Edm Graphite,Graphite Block For Edm,Edm Graphite Electrodes,Isostatic Graphite Column

CARBONS TECH&CREATION(HENAN) INDUSTRY CO.,LTD , https://www.kycarbon.com