How to differentiate what well of nodular cast iron builds is light-duty and heavy-duty

author： Time：2025-03-19 Browse：

What well of nodular cast iron builds is heavy-duty it is to point to to allow in routine inspection test bear press 360kN or exceed steam - 20 class advocate car; Light-duty it is to point to allow bear press 210kN or steam - 10 class advocate car.

This examines there should be data in the report. Will distinguish with this weight, diameter of and rather than. This is well of nodular cast iron the top is light-duty, heavy differentiating standard and basis.

Well of nodular cast iron is built

Patulous data:

Nodular cast iron is changed through the ball and processing of be pregnant with gets bulbiform black lead, improved cast-iron mechanical performance effectively, raised plasticity and tenacity especially, get steel returns high intensity comparing carbon thereby. Nodular cast iron is 20 centuries develop a kind of high strength that rise the fifties cast-iron material, its integral performance is close to Yu Gang.

Be based on its superior performance, build successfully with Yu Zhu a few get power complex, the spare parts with higher demand of intensity, tenacity, wearability. Nodular cast iron develops quickly already to be next to casting pig, the cast-iron data with very extensive application. Alleged " with Tie Daigang " , basically point to nodular cast iron.

Well of nodular cast iron builds general component to be circle and square, the road that is in the urban district politics respect, use a circle commonly, because of circular well the lid tilts not easily, can the better security that protects good pedestrian and car.