Causes and solutions of missing plating caused by hot-dip galvanizing of seamless steel pipes:1. The surface of the plated parts is not clean⑴The surface of the plated parts contains paint, grease, and solder; it can be polished or scrubbed with related solvents.⑵ iron oxide; under pickling; continu

In pipeline manufacturing, Steel flanges are mainly used for the link of pipelines. In the pipelines that need to link, Various devices include a flange. deficient-Pressure pipelines can use wire flanges and welding flanges with pressures greater than 4 kg. Add sealing points within the two flanges,

Austenitic stainless steel is softened by solid solution treatment. Generally, the stainless steel tube is heated to about 950-1150°C and kept for some time, so that carbides and various alloying elements are fully and evenly dissolved in austenite, and then quickly quenched and cooled. , carbon and

The seamless steel elbow has the following advantages: hygienic and non-toxic, light in weight, good heat resistance, good corrosion resistance, good heat preservation, good impact resistance and long service life1. Hygienic and non-toxic: the material is completely composed of carbon and hydrogen,

Thick-walled welded pipe is a hard-to-deform precipitation-strengthened nickel-based superalloy, which is similar in composition to the ЭИ929 alloy of the former Soviet Union, and has a high level of solid solution strengthening of alloying elements and precipitation strengthening of γ' phase. It ha

The specification of the connection method of galvanized steel pipe depends on the type of connection method. Generally, there are several types, such as flange connection, clamp groove connection, and welding. In the actual connection of galvanized steel pipes, welding is the most commonly used con

Line steel pipe is a type of steel pipe that is used for transporting materials through pipelines across the country. Line steel pipes can be used to transport petroleum, natural gas, oil, and water. It is a durable steel pipe that must meet certain specifications and regulations.Product name: seaml

The cast steel flange has an accurate blank shape and size, a small processing amount, and low cost, but has casting defects (pores, cracks, inclusions); the internal structure of the casting is poorly streamlined (if it is a cutting part, the streamlined form is even worse);Forged steel flanges gen

The importance of coated composite steel pipes for fire protection in industrial applications is becoming more and more obvious, but do you know the details about coated composite steel pipes? Let's take a look next.1. Hygienic, non-toxic, no fouling, no breeding of microorganisms, ensuring fluid qu

The steel concentric reducer is its connection form, which is directly butt-welded with the reducer and the steel pipe, and the steel is hot-pressed or forged. Classification: pushing, pressing, forging, casting. Corresponding to the steel concentric reducer, there are also eccentric reducers, and t