Quenching test bar for measuring through hardening depth of aluminum alloy material

A quenching test bar for measuring the through hardening depth of an aluminum alloy material adopts a test rod with a circular or square section; and a step inner concave surface with 2 to 15mm depthis formed on one end surface of the test bar, and a positioning screw hole is formed on the other end surface thereof. The utility model has the advantages of simple and reasonable structure, easy processing and manufacture, and low cost, can provide real-time temperature of a specified point on the measuring test rod during the cooling process, and can obtain quenching sensitivity data of the aluminum alloy material as well as conduct quenching depth research, thereby being suitable for reinforcing the hardenability and the quenching sensitivity of the aluminum alloy material through thermaltreatment, and researching and developing test specimen used in the experiment of the quenching cooling process of novel high-hardenability aluminum alloy, larger-size aluminum alloy material, and larger-size aluminum alloy el