The orientation of China's forging equipment upgrading is to improve the adaptability of products according to market demand, and the key to the transformation of forging equipment enterprises is to choose their own development path in the face of market changes.

Present Situation of Domestic and Foreign Hydraulic Press Manufacturing Industry

Status of hydraulic press manufacturing in China. Forging equipment is a forming machine tool, hydraulic press is one of the important members. According to the industry statistics released by China's Machine Tool Industry Association in recent years, the market capacity of China's forging equipment is close to 70 billion yuan, while the hydraulic press, which accounts for about 30% of the forging equipment, has a market capacity of about 20 billion yuan. As for the number of hydraulic press manufacturers, although there is no exact statistics, it is estimated that there are nearly 1,000. Mainly state-owned enterprises and private enterprises.

At present, China's hydraulic press products are still continuing the two classification methods of small and medium-sized hydraulic presses. First, according to the use of the product is divided into general and special two categories. Second, according to the weight of the product itself is divided into general, large and heavy. Its own weight in the following 10 tons is called the general hydraulic press, the weight of 10~30 tons is called the large hydraulic press, the weight of more than 30 tons is called the heavy hydraulic press.

General-purpose, small and medium-sized four-column hydraulic press products are mainly manufactured by small and medium-sized private enterprises with less than 100 people, which has obvious product price advantages in the low-end market. In Baipu Town, Rugao City, Nantong City, Jiangsu Province, there are nearly 50 general-purpose hydraulic press manufacturers, with annual sales of nearly 1.5 billion yuan.

The manufacture of special-purpose, large and heavy hydraulic press products is mostly concentrated in enterprises with strong strength. The area forming hydraulic press used in the automobile industry is mainly the hydraulic press manufacturing enterprise belonging to the former Ministry of Machinery Industry; the volume forming hydraulic press used for forging is mainly the backbone enterprise and the heavy machine enterprise.

The product variety, performance and appearance of hydraulic press manufacturing enterprises in China are similar. The backbone enterprises can produce almost all series of stand-alone products for the main process processing in the multi-process forming process, but they lack specialized, refined, special products and complete sets of line products. Before the delivery of hydraulic press products, due to the lack of process verification stage, enterprises often fall into the embarrassing situation of "products do not leave the factory at ease and worry after delivery.

Present situation of hydraulic press manufacturing industry in industrially developed countries. Germany, Japan, France and other industrial developed countries to manufacture hydraulic products, representing the contemporary international advanced technology level of hydraulic press. Most of the hydraulic press manufacturers in these industrialized countries have the following three distinctive features:

One is to lock the target market and serve the professional forming process field. German hydraulic press manufacturers target modern mass manufacturing markets such as automobiles, general mechanical parts and household appliances. For example, Germany DORST Technology Co., Ltd. specializes in the development of hydraulic presses for powder metallurgy products, Germany Diefenbach (Dieffenbacher) Co., Ltd. specializes in hydraulic presses for glass fiber reinforced plastic products, and Germany Schuler Group SMG Co., Ltd. mainly produces hydraulic presses for sheet area forming and metal volume forming required by the automobile manufacturing industry. In the early 1990 s, Tianjin Nande Press Co., Ltd., a joint venture established by Tianforging, Zhongxin and German SMG in Tianjin Development Zone, produced this kind of products.

Japanese hydraulic press manufacturers also target markets for mass manufacturing such as automobiles, serving various forming process fields. Such as Japan's Amino (Amino) Co., Ltd., in the production of automotive cover parts mold manufacturing with hydraulic press and automotive hydraulic forming parts of the hydraulic press. In the mid-1990s, Tianforging cooperated with Amino Co., Ltd. to produce four research and distribution hydraulic presses and one mold test hydraulic press for the mold center project of Tianjin Automobile Factory.

The second is to provide complete process forming process equipment. Industrial developed countries hydraulic press manufacturing enterprises focus on the forming process market, providing multi-pass process equipment, and through the automatic connection between the various processes, to provide complete services for the multi-process forming process. For example, the refrigerator compressor shell production line successfully developed by German SMG Company in the 1980 s covers all processes such as uncoiling, leveling, conveying, blanking, stretching, drilling and stacking, and manufactures 13 shells or 15 covers per minute.

The third is to focus on product forming process research and process verification. German hydraulic press manufacturers attach great importance to product use process research, with the right to speak forming process. For example, Germany's Diefenbach company is not only a manufacturer of glass fiber reinforced plastic products hydraulic press, but also a manufacturer of glass fiber reinforced plastic products produced by glass fiber reinforced plastic products hydraulic press, so as to have sufficient use process verification, and thus can greatly meet the user's use process requirements.