The results show that commercial tooth plate casting sample quenching temperature tempering sample hardness decreased to 200 ℃ tempering the impact of the first peak value of more than 200 ℃ tempering the impact of a downward trend, 400 ℃ tempering a martensitic temper brittleness, more than 400 tem

Test results show that business lug casting sampling different temperature hardened tempered with a sample of the hardness of the trend, reduce 200 °C tempered shock value with the first peak, more than 200 °C tempered shock value there is a downward trend, 400° C tempered martensite is brittle, and

正在翻譯，請等待...

Test results indicates that, commercial tooth plate castings sampling quenching different temperature tempered specimen of hardness has reduced of trend, 200 ℃ tempered shock value appears first a peak, over 200 ℃ tempered shock value has declined of trend, 400 ℃ tempered appears horse's body temper

The test result indicated that, commercial toothed rack casting sample quenching different temperature tempering test specimen degree of hardness has the tendency which reduces, 200℃ the tempering impact value appears the first peak value, surpasses 200℃ the tempering impact value to have the drop t