Welded pipe roll (YB/T128-1997)

Rolling Mills for Welded Tube (YB/T128-1997)

The rolling mill for welded tube is a common machine used in the manufacture of steel tubes. It uses a number of rollers to compress a steel tube into the desired shape and size. Rolling mills for welded tube typically feature a driven upper roll, driven lower roll, press side rolls and sliding side rolls. The rolling process is controlled by a computer system that controls the force and speed of each individual roller.

Rolling mills for welded tube are used in a variety of different industries, including automotive, marine, aircraft and construction. The vertical stand type mill is the most commonly used mill for welded tube work. It consists of an upper beam equipped with two loose upper rollers, two loose lower rollers and two lower rollers held together by an upper slide bar. The upper beam is mounted to the rig and held in place by two vertical support posts, while the lower rolls are mounted on the bottom of the upper beam. The upper beam then moves vertically, allowing the rollers to move against the tube.

The upper slide bar is adjustable, allowing the rollers to be moved from side to side, thereby affecting the finished shape of the tube. The upper and lower rollers are driven by a drive motor, while the sliding side rolls are actuated by hydraulic systems. The position of the sliding side rolls can also be adjusted to influence the shape of the tube.

The weld quality of the tube is crucial to its strength and performance, and modern rolling mills have a number of features to ensure this. Common welding techniques used in tube manufacture are electric fusion welding, a form of resistance welding, and high frequency welding. Electric fusion welding creates an electrical arc between a pair of electrodes, while high frequency welding uses an alternating current to heat the edges of the tube.

The rolling mills used for welded tube also often feature a cutting head to break the tubes apart from the rollers, allowing them to be cut to the desired length. Other features, including mandrels and oil pumps, may also be incorporated, allowing for faster and more accurate production.

Rolling mills for welded tube have a wide range of industrial applications, ranging from the production of pipes, tubes and profiles to consumer goods such as light fittings and heating elements. With modern rolling mills, manufacturers can produce higher quality goods with higher efficiency, leading to greater profit and a more reliable source of goods. Although some manufacturers will still rely on manual tube forming and welding processes, those that invest in sophisticated rolling mills for welded tube are able to get better and more consistent results.

Welded Pipe Rolling Rolls (YB/T128-1997)

Welded pipe roll rolling roll is a kind of staple machine of rolling bearing industry. Its performance directly affects the quality of welded pipe products. It is necessary to strictly control the quality of its rolling roll when manufacturing welded pipe products.The welded pipe rolling roll is a kind of staple machine of rolling bearing industry. Its performance directly affects the quality of welded pipe products. Therefore, it is necessary to strictly control the quality of its rolling roll when manufacturing welded pipe products.

YB/T128-1997 welded pipe rolling roll standard is applicable to the national mandatory standard for the manufacture of cold or hot rolled rolling roll for welded pipe. The standard stipulates the technical requirements of the product, test methods, inspection rules, marking and packaging of the welding pipe rolling roll.

The welded pipe rolling roll is composed of two, four or six parts and is heated to a good plastic state, and then cooled and finalize the design by product superplastic forming and third-stage heat treatment. According to customer requirements, it can be made into single, double and zero series steel. The welded pipe rolling roll generally adopts the double-row 50 type bearing, and there are other types of bearing and combination rolling bearing, which can meet the requirements of different customer products. The work standards and product dimensional accuracy are in accordance with the relevant standards of the Ministry of Metallurgical Industry.

The welded pipe rolling roll products shall be inspected in accordance with the requirements of YB/T128-1997. The three major indicators of performance test are the roll body geometric size accuracy and roughness. Its surface roughness Ra should not exceed 1.6, the geometrical size tolerance should meet the requirements of relevant industry standards.

The welding pipe rolling roll products manufactured by us all pass the quality inspection of YB/T128-1997 and meet the requirements of national standards and customer requirements for product production.