According to the actual load cases of heavy load locomotive, the material compressing tests of the high polymer parts used in the locomotive are researched.The relationship between stress and strain during the material compressing are acquired by means of comparing the many Stove Element Socket Pins results of the material compressing tests under different test condition.The relationship between stress and strain during the material compressing is nonlinear in large range of strain, but the relationship is approximately linear in small range of strain.
The material of the high polymer made in China and the material of the high polymer imported are compared through the tests.The results show that the compressing property of the material of the high polymer made in China and the material of the high polymer imported are almost same.The research offers the foundation to study the structure elasticity Hospital Beds of the draft gear.