Salt bath rare earth chromium titanium co-penetration agent and application technology thereof

The invention relates to a salt bath rare earth chromium titanium co-penetration agent. The salt bath rare earth chromium titanium co-penetration agent is characterized by comprising the following components in percentage by weight: 43-49% of barium chloride, 20-26% of potassium chloride, 8-12% of titanium dioxide, 1-3% of chromium sesquioxide, 3-5% of aluminum powder, 6-8% of cerium-rich rare earth and 6-10% of sodium fluoride. The salt bath rare earth chromium titanium co-penetration agent has the beneficial effects that a coating obtained by using the salt bath rare earth chromium titanium co-penetration agent has extremely high hardness and extremely low friction coefficients, and meanwhile, the cross section of the coating changes gradually in a gradient manner; the stress concentration of the coating is reduced; the brittle fracture tendency of the coating is reduced; the shock resistance of the coating is improved; and the service life of cold-work die steel or mechanical parts is greatly prolonged. 本发