提高四切分轧制负公差Φ12mm螺纹钢合格率的生产实践

Production Practice of Increasing Qualified Rate of Φ12 Rebar with Negative Tolerance by Four Splitting Rolling

为了提高四切分轧制Φ12 mm螺纹钢负差率,天钢通过完善孔型设计,优化轧制工艺等措施,将负差合格率提高了4.75%,显著提高了负公差率,节约了成本,取得了较好的经济效益。

In order to increase the qualified rate of Ф12 mm rebar with negative tolerance rolling, Tiangang improved rolling pass and optimized rolling process, greatly increasing the rebar with negative tolerance by 4.75%. Production cost was saved and good economic benefit in four splitting qualified rate of achieved.