Sanitary pipe fittings are thin-walled, and the weight is only 1 / 3 of that of galvanized pipe, which saves a lot of materials and reduces the weight of products. It is especially suitable for high-rise buildings. Let's take you to know the connection mode and forming method of sanitary pipe fittings?
Sanitary pipe fittings are used in pharmaceutical, food and other industries. They are used in places with high requirements for sanitary level. Sanitary pipe fittings have good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Sanitary pipe fittings are resistant to corrosion in the atmosphere. If it is an industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion.
Sanitary pipe fittings are connected with other pipes to a certain part of the pipeline. There are three methods of connection: thread type, welding and clamp type. The pipe fittings mainly have seam and seamless style. The common seam is that the inner diameter and outer diameter are polished, which is completed by welding operation.
Sanitary pipe fittings have a high compressive strength, generally used and ceramic materials of a crystal, small radius and ion high price configuration. The determination of the number and properties, measured by the material and compressive strength mold, generally limits the brittleness of the ceramic itself, which reflects the variation in different ranges. Sanitary pipe fittings are in line with the development of ceramic technology of materials and science and technology. The progress has been made. The toughness of stainless steel sanitary pipe fittings has been greatly improved.
The forming method of sanitary pipe fittings is as follows:
1. Forging method: the end or part of the pipe is punched and stretched with a die forging machine to reduce the outer diameter. The commonly used forging machines are rotary type, connecting rod type and rolling wheel type.
2. Bending forming method: there are three commonly used methods, one method is called stretching method, the other is called stamping method, and the third is the familiar roller method. There are 3-4 rollers, two fixed rolls, one adjusting roll, and the fixed roll spacing is adjusted. The finished pipe fittings are bent.
3. Stamping method: on a punch press, the end of the tube is expanded to the required size and shape with a tapered core. Roller method: the core is placed in the pipe, and the outer circumference is pushed by the roller, which is used for the processing of circular edge.
4. Rolling method: generally without mandrel, it is suitable for the inner edge of thick wall pipe.
5. Bulging method: one is to place rubber in the pipe, and the upper part is compressed with a punch to make the pipe protrude into shape; the other method is to bulge the pipe into the required shape by filling the middle part of the pipe with liquid pressure.