Shaped corrugated metal pipe culverts way we now, with the rapid development of industrialization of mutual penetration and various science and technology, corrugated metal pipe culverts It is not only widely used in the production machinery, petrochemical, instrumentation and various projects, but also Our nearly three decades, it has expanded used in the aerospace, aviation, nuclear energy, shipbuilding, electronics and new advanced construction and other industrial sectors, and has become a modern engineering technology not deficient parts, plays the more obvious effect. The most common way to forming bellows, what does? We simply introduce you to it. Hydroforming molding method is most commonly used in corrugated metal pipe culverts. Use it in the fluid pressure in the tube, flexible corrugated tube in detail, is the constraint tube bulging ring until it succumbed to a presence along the ring, and then compress the tube to the desired length. More use of small diameter bellows this approach. Roll forming process is mainly used for the processing of large bellows, relying provided in the roll forming tube forming wheel can roll into a single wave-shaped, and some equipment can also be a ripple into a number. Selection in the tube inside the tire tool dilatation, soft-corrugated tube 10 years of experience, individually pressed into corrugated expansion, after it began to take shape, and then list Kun coining customization. Why stainless steel metal bellows rust rusty metal bellows why it? We are confused, in fact, the main material of stainless steel metal bellows 304 is the US standard is called, also called SUS304, cr18ni9 is its chemical formula. Stainless steel is an alloy element molded-oxidation film, cut off contact with oxygen, in order to make rust. Of course, users will find the situation in the use of stainless steel metal bellows rusty, this is a normal phenomenon. For example, the presence of chloride ions in the environment of use, due to the widespread presence of chloride ions in the water, soil and other environments, flexible corrugated tube preferred brand, it will accelerate rust. Therefore, in these cases, we use words to pay special attention to dust, to keep clean. There are several cases without a solid financial and other treatment that can lead to very low alloy content, corrosion resistance decreases. Because the 304 stainless steel bellows no titanium, among its poor intergranular corrosion. Stainless steel is a good corrosion resistant alloys in the air, it does not have to be surface-treated, flexible corrugated tube, it can play its due performance, with a representative of the 316 316L stainless steel. From the other point of view, because the stainless steel contains chromium it will form a thin layer on the surface of the film, precisely because this layer of film containing, in order to use stainless steel bellows eternal luster. Stainless steel bellows must have more than 2% of chromium in order to make it does not rust, but some manufacturers cut corners to reduce costs. Because 304 is a versatile material, which is widely used in industrial and other good overall performance of the device. Flexible corrugated pipe, hose Hopen, professional supply flexible bellows type provided by Ning County Hopen stainless steel metal hose Limited. Flexible corrugated pipe, hose Hopen, professional supply flexible corrugated pipe is Ningjin Hopen stainless steel metal hose Limited (www.haopengguanye.com) (www.haopengguanye.com) this year introduced a new upgrade, more pictures for reference only, please call Tel picture on this page or to obtain the latest information, contact: Pan Jingli.