The invention belongs to the technical field of
metal and glass sealing-in, in particular to a sealing-in method of metallic
titanium and
titanium alloy as well as a glass terminal post, comprising the following steps: firstly, adding the terminal post, a
glass ball and a metallic
titanium shell into a die and locking the die; secondly, placing the locked die into a
vacuum furnace and cleaning the furnace by high-purity
argon; thirdly, vacuumizing the inner part of the furnace, wherein the vacuum degree is 6.0*10<-3> Pa; fourthly, inflating the high-purity
argon to lead the pressure in the furnace to be 0.85-0.9 normal
atmosphere; fifthly, raising the temperature; sixthly, reducing the temperature to the
room temperature, and obtaining a metallic titanium and
titanium alloy sealing-in
assembly. The
leak rate of the titanium glass sealing-in
assembly can reach the value less than 1*10<-9>Pa.m<3> / s, and the
insulation resistance is improved by 1 time compared with the
battery terminal post of the prior art. Through the test, the titanium glass sealing-in
assembly has stable property and reliable quality, and can fully meet the working requirements of a
thermal battery.