The water-cooled metal centrifuge with de lavo method is used. The mold of Dg100 mm or less is cooled by a closed water jacket, and the mold of Dg150rnm or more is cooled by rain. When pouring, silicon-calcium alloy should be added to the inlet end of the flow plant for inoculation treatment. After each pouring, a thin layer of dry silicon-silica powder is sprayed on the inner surface of the mold with compressed air. The centrifuge is a two-and-a-half The closed casing composed of the part is mounted on the bottom of the casing, and the front end of the mold is sleeved with a ring gear. The DC speed regulating motor mounted on the bottom of the casing is directly driven by the gear, and the ends of the shell are closed. The mold is equipped with a sealing ring at the front of the casing, and a semi-circular acoustic full rae centrifuge with a mountain cylinder flipped at the front end of the casing is equipped with wheels to reciprocate on the inclined rail, and the reciprocating movement of the centrifuge is adopted. The hydraulic unit has a pressure of 9.65 x 105Pa. The moving speed is adjusted by the overflow valve. The cable and cooling water inlet and outlet hose of the centrifuge are generally fixed on the column beside the machine, and the other end is connected to the housing and moved together at random. The production specifications of the centrifuge are generally fixed. If several types of pipes are to be produced on one centrifuge, the fan-shaped bag, the molten iron planting and the roller frame supporting the mold need to be replaced.

As a new type of pipe, ductile iron pipe has the characteristics of good mechanical properties, metal saving, simple construction, economical cost, high reliability, good corrosion resistance and long service life. Its elongation is much better than that of gray cast iron pipe. After anti-corrosion treatment, the service life can reach 3-5 times of the steel pipe. Our centrifugal ductile iron pipe is easy to install and suitable for construction in various terrains and climates. The simple installation can greatly speed up the project schedule and reduce the engineering cost. It is widely used in tap water and gas pipelines, and its usage accounts for more than 90% of the output of cast iron pipes.

Weifang Yasia Pipe Industry Co., Ltd., located in Weifang, China, relies on the national-level Weifang High-tech Industrial Development Zone, with the Jiqing Expressway in the north and the Weixian Road in Weifang City in the west. The transportation is convenient and the communication is fast.

The company was formerly a foundry company that has been supplying the world's major pipeline systems companies for more than a decade. After ten years of grinding a sword, more than ten years of production, development and management, the company has accumulated rich experience in the design, development, production and service of water supply and drainage pipelines, and registered with the State Administration for Industry and Commerce with independent intellectual property rights. "Asian" trademark, the formation of a series of various design standards from pipe, pipe fittings to other accessories, "Asian" products, all comply with the best, most advanced design standards, the most reasonable supporting structure, the lowest cost, the most The long service life, from the casting itself to the internal and external anti-corrosion treatment, applies the most advanced technology in the world. Creating a national brand is Asia's biggest goal. Asia Asia will give full play to the huge advantages of domestic resources and give full play to its rich experience in the industry to create an internationally renowned brand in the world's pipeline system industry.

Asia Asia (Group) Company, which consists of Weifang Yasia Pipe Industry Co., Ltd., Weifang Yasia New Building Materials Co., Ltd., Weifang Boyuan (International) Kindergarten Education Center, Weifang Liada Pipe Industry Co., Ltd., covering an area of nearly 40,000 square meters. Rice, including 15,000 square meters of standard factory buildings, more than 10,000 square meters of office and ancillary facilities, total investment of more than 60 million yuan, four advanced pipeline spraying production lines and various advanced processing equipment, with an annual production capacity of more than 40,000 tons of pipelines and ancillary products. Can fully meet the needs of domestic and international markets.

Guided by market demand and technological progress, the company has introduced a variety of domestic and foreign drainage pipe production technology and equipment, and combined with the advantages of similar products at home and abroad, developed YXY series of iron-plastic composite flexible seismic drainage pipeline system, RK The quick connection of flexible seismic pipeline system and GYWQ spray-lined drain pipe series products not only fills the domestic gap, but also the technical indicators have reached the advanced level of similar foreign products, and obtained a number of national patents. ISO9001-2000 quality management system certification and 140001 environmental protection system certification, was recognized as "high-tech enterprises."