(2) compared with the rolled copper drilling cooling water jacket, the buried copper casting water jacket can meet the needs of different customers, can be cast into an arc surface, the iron mouth and other special shape area can also be designed into a notch shape. It is very difficult to manufacture by drilling holes. The cooling water channel and the hot side dovetail groove can achieve a single casting, greatly simplifying the production process, greatly reducing the manufacturing cost, significantly reducing the energy consumption and shortening the manufacturing cycle, which is conducive to mass production.