Marine Valve Parts,Steel Marine Valve Parts,Marine Valves,Marine Ball Valves,Marine Spare Parts ZhouShan HeCheng Machinery Co., LTD. , https://www.hcmarineparts.com
With the conclusion of the Investment and Trade Fair, the first International Forum on the Development of China's Auto and Parts Industry 2004 and the China-Foreign Investment and Trade Fair for Auto and Component Enterprises have come to a close. More than 100 foreign companies from Germany, the United States, Europe, Japan, and South Korea 550 domestic companies participated in the fair and more than 30 cooperation intentions were reached on site.
It is understood that the investment fair will take the form of foreign investors' positioning and the flow of internal businesses, and has set up more than 100 negotiation desks. In order to enable the participating companies at home and abroad to find a suitable target for negotiation, a dispatching center was set up at the venue to timely schedule the planned objects for negotiations and projects proposed by domestic and foreign companies, which increased the opportunities for enterprises to communicate with each other. Entrepreneurial enthusiasm for participating companies rose, and the conference site was full throughout the day. On average, each participating domestic company had discussions and exchanges with more than 10 foreign companies.
04 Closing of China-Foreign Automobile and Parts Enterprises Trade Fair
The valve stem is an important part of the valve.
It is used to drive, connect the actuating mechanism or handle, and directly
drive the spool to move or rotate, so as to realize the function of valve switch
or regulation.Valve stem in the valve opening and closing process is not only
moving parts, stress components, but also seals. At the same time, it is
subjected to the impact and corrosion of the medium, and it also causes friction
with the packing. Therefore, in selecting the stem material, it must be
guaranteed that it has sufficient strength at the prescribed temperature, good
impact toughness, scratch resistance, corrosion resistance. The valve stem is a
vulnerable part, and the mechanical performance and heat treatment performance
of the material should be paid attention to when selecting.The valve stem in the
valve opening and closing process, under tension, compression and torsion force,
and direct contact with the media, as well as the relative motion between the
friction and filler, so in the choice of stem material, must ensure that it
provides adequate temperature strength, good impact toughness, abrasion
resistance and corrosion resistance of.