下载专业彩票分析器ants alliance, holding by shanghai gehang vacuum technology co.,ltd. which is an online sales platform. which is committed to helping gehang’s partners to expand overseas’ sales channels, increase the marketing share, increase brand awareness. ant alliance service object covers: all of the gehang’s upstream and downstream suppliers and customers, manufacturers, service providers, etc.
through the resource integration and combination, the ant supplier alliance can provide customers with: all vacuum products, including vacuum furnace, vacuum coating machine, vacuum pump, vacuum valve, vacuum measuring instruments, vacuum flange parts, vacuum packing, etc; vacuum heat treatment products and materials, powder metallurgy materials, new materials and 3 d printing powder materials. in ant alliance platform, all overseas buyers can quickly accurate find professional manufacturers, directly in the ant alliance platform for online communication and transaction.
combining all the high quality producers to come up with ants based on high quality products, high quality service to create professional overseas sales platform, which is committed to service global high-end customers, to promote china's high-end products exporting. ant alliance, because of professionalism, we are trustworthy.
the vacuum furnace appeared around 1930s. vacuum annealing furnace for electrical materials made in the united states in 1927.
vacuum consumable arc furnace has been used in smelting titanium sponge in 1953.
下载专业彩票分析器vacuum induction furnace has been widely used in industry before and after 50s. oil quenching vacuum furnace developed in the united states in 1960.
vacuum furnace is usually composed of furnace, electric heating device, sealed furnace shell, vacuum system, power supply system and temperature control system. the sealing furnace shell is welded with carbon steel or stainless steel, and the sealing surface of the removable part is sealed with vacuum sealing material. in order to prevent the deformation of the furnace shell after heating and the heating of the sealing material, the furnace shell is usually cooled by water or air cooling. the furnace is located in the sealed furnace shell. different types of heating elements, such as resistance, induction coil, electrode and electron gun, are installed in the furnace according to the furnace usage. there are crucibles in the vacuum furnace of melting metal, and some are equipped with automatic pouring device and manipulator for loading and unloading materials. vacuum system mainly consists of vacuum pump, vacuum valve and vacuum gauge.