Production method for asymmetrically rolled composite steel plate

The invention relates to the field of production processes, in particular to a production method of an asymmetrically rolled composite steel plate, which comprises the following steps of: 1, preparing a composite blank; step 2, welding; step 3, heating; and 4, rolling. The method has the beneficial effects that (1) the problem of welding cracks of different steel types of T4003 + Q450NQR1 is solved; and (2) the rolling of the T4003 + Q450NQR1 composite plate is realized, and the plate shape quality and the performance quality of the steel plate meet the standard requirements, so that the product successfully enters the market for use. 本发明涉及生产工艺领域，一种非对称轧制复合钢板生产方法，包括以下步骤：步骤一：复合坯制坯；步骤二：焊接；步骤三：加热；步骤四：轧制。本发明的有益效果是：（1）解决了T4003+Q450NQR1的异钢种焊接裂纹问题。（2）实现了T4003+Q450NQR1复合板轧制，钢板的板形质量、性能质量满足了标准要求，使该产品成功进入市场使用。