Classification of metal hoses
Corrugated metal hose from the structure point of view, metal bellows with two pieces of tape and pipe, they can be molded out of ring bellows and spiral bellows. Just because the corrugated pipe buckle strip forming there is always a certain length of brazing or welding and joints, these places often have accumulated working medium residue, and precipitated a mechanical impurities pollution cavity cleaning test and working medium. As a result, its trustworthiness is relatively poor. Bellows ring is the number of rings and several concave diaphragm outer concentric semi circle tangent, and several inner concave semicircular ring connected with the vest tangent to the special geometry of the pipe. Its billet is mainly made of tubes, and this kind of bellows has the characteristics of large flexibility, good elasticity, simple manufacture and small rigidity. Suitable for making general pressure, flexible requirements of high, medium diameter of the metal hose. Spiral corrugated pipe is a certain length of the spring winding shaped diaphragm spring shape around the outer edge and concave concentric semicircular ring tangent, and inner spring winding shaped concave semicircular ring connected with the vest tangent to the special geometry of the pipe. The corrugated tube has the characteristics of high strength, large rigidity and simple manufacture, and is suitable for making metal hose with high and medium pressure requirements, high and medium pressure, medium and small diameter.
Bellows in the United States known as "" (Corrugated Tube) or bellows (Corrugated Box), in Europe, commonly known as "metal bag" (German Metallbulgen, British Metal Bellows). This name comes from the old manual hand operated air sac, which is commonly known as "tiger skin" in our country".
Corrugated metal hose (abbreviated bellow) is a kind of high quality flexible pipe in modern industrial pipeline. The utility model is mainly composed of a corrugated pipe, a net sleeve and a joint. The inner pipe of the utility model is a thin wall stainless steel corrugated pipe with a spiral shape or an annular waveform, and the mesh cover of the outer layer of the corrugated pipe is made of stainless steel wires or steel strips according to certain parameters. The joint or flange at the ends of the hose is matched to the connector or flange of the customer's pipe.
The metal hose is an important connecting component in engineering technology. It is made up of corrugated flexible pipe, net sleeve and joint. In all kinds of gas and liquid pipeline system, length, temperature, position and angle compensation system as the compensation element, a sealing element and connecting element and damping element, used in various fields of aerospace, petrochemical, electronics, shipbuilding, mining machinery, textile, medical electronic energy construction etc.. The latest national standard for metal hose is the general specification for corrugated metal hose (GB/T14525-2010), which was implemented in October 1, 2011.
