Titanium plate heating process

The first feature is that titanium is heated , as compared with copper, aluminum ,iron and nickel, Xinnuo titanium grade 2 sheet, low thermal conductivity , heat of the main difficulties are: the surface- heating method , the heating time is rather long. When large billet heating , the temperature difference between cross-section . Copper, iron , nickel-based alloy thermal conductivity increases with increasing temperature and decrease with different thermal conductivity of titanium is increased with increasing temperature . When heated in an oil furnace in a reducing atmosphere , particularly strong hydrogen absorption , diffusion of hydrogen in the alloy during heating to reduce the ductility of the alloy . When
heated in an oil furnace having an oxidizing atmosphere , the titanium gr 2 during hydrogen absorption slowed significantly ; when heated in a conventional box furnace , the hydrogen absorbing slower . Seen, titanium foil blanks should be heated in an electric furnace . When had to use flame heating , should make the atmosphere was slightly oxidizing furnace , in order to avoid hydrogen embrittlement . Regardless of what kind of furnace heating , should not be the role of titanium and refractory occurs, stainless steel plate placed on the hearth pad . Using the nickel content must not exceed 50 % of the heat resistant alloy plate to prevent the plate blank welding .