The austenitizing temperature was raised by addition of RE and lowmelting-pointalloy which were the elements of strongly promoting and stabilizing the pearlite.
同时稀土与低熔点合金元素的加入，是强烈促进珠光体的元素，具有稳定珠光体的作用，提高了奥氏体化温度；
2
Though the analyzing of the upper part of oil box and the designing of the structure of the die, the article discusses the characters and advantage of the lowmeltingpointalloy die.
The results indicate that the classical heat transfer mechanism is suitable for the medium wall load and the potential heat of the low-melting-pointalloy is useful for high wall load.