跳至主要内容

Transformer tank wall making machine heat treatment

Heat treatment and machining is a very important in Transformer corrugated fin wall making machine manufacturing process.

transformer tank wall machine body be heat treated

What is Welding Stress and Welding Deformation?

Welding stress is the internal stress existing in the weldment during and after the welding process. Welding deformation is the change of weld size caused by welding.

Which reasons cause Welding Stress and Deformation?

1. Non-uniform Heating of Welds

(1) The stress and deformation of unconstrained rods during uniform heating belong to free deformation, so there will be no internal stress during heating and no residual stress and deformation after cooling.
(2) The stress and deformation of the restrained bar under uniform heating. If the heating temperature is higher and reaches or exceeds the material yield point temperature (T>TS=600), compressive plastic deformation will occur in the bar. The internal deformation consists of elastic deformation and plastic deformation.
(3) Stress and Deformation Induced by Central Heating of Long Slab (Similar to Surfacing)
(4) Stress and Deformation Caused by Heating on One Side of Long Slab (Equivalent to Surfacing on the Edge of Slab)

2.The shrinkage of weld metal.

When the weld metal is cooled and transformed from liquid to solid, its volume will shrink. As the weld metal is closely related to the base metal, the weld metal can not shrink freely. This will cause the deformation of the whole weldment and the residual stress in the weld.

3.Changes in Metal Microstructure

The metallographic structure of steel changes during heating and cooling. The specific volume of these structures is different, which will also cause welding stress and deformation.

4.Rigidity and restraint of Weldments

The greater the rigidity of the weldment itself and the degree of restraint around it, the smaller the welding deformation and the greater the welding stress; conversely, the smaller the rigidity of the weldment itself and the degree of restraint around it, the greater the welding deformation and the smaller the welding stress.
Rigidity –
– refers to the ability of weldments to resist deformation.
Constraint – The constraints on welding deformation imposed by objects around the weldment.

Why JTFY Transformer corrugated fin wall making machine need be heat treated?

All work is to insure whole machine running with high precision and stable, to guarantee produce high precision transformer corrugated tank wall.
More information about our Transformer Corrugated Fins Production Line, please feel free to contact with us : cnkylt@aliyun.com

RELATED PRODUCTS:


transformer oil tank corrugated fin production line is full automatically
transformer oil tank corrugated fin production line is full automatically

2.Corrugated Fins Wall Forming Machine

corrugated fins wall making machine

评论

此博客中的热门博文

DESICCANT CAP CLOSURE, SPIRAL DESICCANT CLOSURES MANUFACTURING SERVICE, FROM MOLD MAKING TO PLASTIC MOLDING

  Introduction Spiral Desiccant Closures (desiccant cap closure) manufacturing service , from  mold making  to  plastic molding , is a comprehensive solution that caters to the specific needs of companies in various industries. These closures play a crucial role in preserving the freshness and quality of products by effectively sealing containers and preventing moisture ingress. This article delves into the intricacies of the manufacturing process, highlighting the importance of  mold making  and  plastic molding  in  the production of Spiral Desiccant Closures . KYLT provides no-standard PE, PP material Spiral Desiccant Closures making service, from mold making to plastic injection molding. Service email: cnkylt@aliyun.com Vitamin capsule medicine tablet stopper with desiccant anti-theft packaging bottle lid The Significance of Spiral Desiccant Closures Spiral Desiccant Closures  have gained immense popularity due to their exceptional m...

The advantages of Casting Iron parts used in Corrugated fins forming machine

The advantages of Casting Iron parts used in Corrugated fins forming machine (JTFY 400-1300 TRANSFORMER OIL TANK CORRUGATED FINS FORMING MACHINE KEY MECHANICAL STRUCTURE ALL USE STANDARD GB QT500 CASTING PARTS) Main casting iron structures: ---①②③④⑤ are key casting iron parts Material:Standard GB QT500 --① right&left gantry posts --② slider box --③ slider bottom platen --④ back platen post --⑤ post of cutting structure --other casting iron parts: oil cylinder flange, roller seat, movable mould bearing support,front&back loose-tight structure foot parts etc. transformer oil tank corrugated fins forming machine Casting Iron is naturally weathered. The casting iron part is much heavier than the welding part. The corrugated fin forming machine is one kind of heavy machinery. The smaller vibration of the machine , the greater of cutting precision. The sensitivity of casting iron to vibration is very low, so that its cutting accuracy is improved. Castin...

CNC MACHINE TOOL CLASSIFIED AS PER THE CONTROL TRACK MOVEMENT

Classification according to the control track of CNC machine tool movement. (1) CNC machine tool controlled by point and position Point position control requires to control the moving parts to move from one point to another for accurate positioning. The requirements for the motion track between points are not strict. In the process of moving, there is no processing, and the motion between the coordinate axes is irrelevant. In order to achieve fast and accurate positioning, the movement of displacement between two points generally moves fast first. And then approaches the positioning point slowly to ensure the positioning accuracy. As shown below, which is the motion track controlled by the point position. point position control motion track The machine tools with point control function mainly include CNC drilling machine,  CNC milling  machine, CNC punch, etc. With the development of numerical control technology, there are few numerical control systems which are only us...