Reasons for stainless steel rust: The surface of the stainless steel contains dust or other metal particles attached to other metal elements. In humid air, the condensed water between the attached material and the stainless steel connects the two into a micro battery, triggering an electrochemic ...

The chemical polishing of stainless steel flanges is achieved by the regular dissolution of the flange surface to achieve a smooth and smooth finish. In the chemical polishing process, the passivation oxide film and the oxide film are continuously formed on the surface of the steel stainless ste ...

Marine flange gaskets are a kind of ring made of material which can produce plastic deformation and have certain strength. Most gaskets are cut from non-metallic sheets, or are manufactured by specialized factories according to specifications: size, the materials are asbestos rubber sheets, asbe ...

Flange rolling is also a flange manufacturing process. Plate flat welding flange in the majority, the connection mode for welding. There are cold rolls and hot rolls. Materials are carbon steel, stainless steel, alloy steel and so on. This kind of product uses theory weight to weigh mostly, do n ...

Marine socket weld flange refers to the flange which is welded at the end and outside of the pipe by inserting the end of the pipe into the step of the flange ring. The flange with neck has good rigidity, small welding deformation and good sealing property. It can be used in pressure range of 1. ...

Haihao Group manufacture & supply high quality marine butt welding flanges in different dimension,pressure,standard,material, specification. Butt welding flanges include many types and models.Butt welded flanges are used for connecting flanges and pipes.They are mainly used in welding techno ...

Casting is a common flange production technique.The shape and size of the billet are accurate, the processing quantity is small, the production efficiency is high, the cost is low, it can make the complicated shape and so on. But casting marine flange also has casting defects (pores, cracks, inc ...

Forging is one of the marine flange production process.Different from the common marine casting flange, the general raw material of the marine forging flange is the billet, the billet will be cut after continuous hammering, in order to eliminate the segregation in the ingot, loose. Forging flang ...

Flange is widely used, especially in the construction, maintenance, replacement, maintenance and operation of ships, Marine flange plays an important role in connecting pipelines. Marine flange is used on the ship flange, flange is the pipe and pipe interconnecting parts, connected to the pipe e ...

In the last article,we introduced of tube sheet.At the same time,we would like to introduce several factors that affect tube sheet corrosion.Some customers have consulted with me about tubesheet corrosion issue,so I will explain the reasons in detail today. 4.2 Diameters Tube Sheet In Haihao Gro ...

Recently we received an inquiry from a customer in Thailand,who specializes in the boiler industry.The product that the customers wanted is tube sheet(tubesheet),which is suitable for heater.This time,we will introduce the relevant knowledge of tube sheet accordingly. Tube sheets are under produ ...

Orifice flanges are widely used in orifice meters to measure the flow rate of liquids and gases in the respective pipeline.Two orifice flanges are called orifice flange union.Each flange has a pipe tap for measuring the pressure drop of the flow through the orifice plate.This makes the separate ...