The New 140m Laying Head And Increasing Gearbox Of Hot Rolling Mills To Iran Customer

The New 140m Laying Head And Increasing Gearbox Of Hot Rolling Mills To Iran Customer

Our company, Xi’an Hani Tech Co., Ltd, an enterprise with decades of experience in the business, has become one of the most advanced hot rolling mill equipment manufacturers and exporters in China.

We provide steel rolling mill project solutions for our customers in Dubai, Nepal, Abu Dhabi, Senegal, Indonesia, Sri Lanka and Pakistan, Arab, India, Egypt, Turkey, Bangladesh, Iran, and Iraq.

We provide complete technical details of our hot rolling mill products to our customers. 

Our rolling mills have received compliments from our clients worldwide due to their corrosion & rust-proof surface and sturdy structure.

The recent new products of laying head and increasing gearbox for Iran customers are as follows:

1. 140m laying head Core Parts.

2. 140m Laying Head Parts.

3. The New Increasing Gearbox for Hot Wire Rod Mill Production Line.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The New Method Of Combining Emulsion And Neat Oil Lubrication In Cold Rolling Lubrication

The New Method Of Combining Emulsion And Neat Oil Lubrication In Cold Rolling Lubrication

One of the key processes in cold rolling is known as the cooling and lubrication process(cold rolling lubrication), it is not only determined the surface quality and strip shape but also reduced the rolling power consumption, and extends the life of the roll even during high-speed operation. 

As we discussed, a new method combining emulsion lubrication and neat oil lubrication was applied to solve the problems related to individual passes. Plenty of tests on stainless steel strips came to the conclusion that this new lubrication method can improve the surface quality of the strip, and control the rolling friction in the deformation zone, and it has the great potential of making lubrication systems simpler, easier to operate, all those while reducing the negative environmental impact from the processing. 

In direct supply lubrication, oil and water are mixed and then sprayed on the strip surface in the inlet zone directly, and there is a separate cooling system, therefore is most of them used for high-quality, tinned thin strips. 

Recirculated supply lubrication, as we knew, is mainly used for relatively thick strips and an emulsion sprayed on the roll and the strip acts as both a coolant and a lubricant.

However, in combined supply lubrication, the high-concentration emulsion is sprayed on the strip, and the low-concentration is sprayed on the rolling process. As generally known, high-concentration emulsions are better at cooling. Both of them are circularly used for relatively thick strips.

Although the above two methods have their merits, with the growing consumer demand for different types of high-quality products and the need for increased production, improvements in cooling and lubrication method are necessary and inevitable. So, the new method of lubrication that combines neat oil and emulsion lubrication takes advantage of its merits.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The Rolling Mill Laser Cladding Technology

The Rolling Mill Laser Cladding Technology

The rolling mill laser cladding technology is a brand new surface strengthening technique that heats the powdered alloy or ceramic and the surface of the substrate to fuse them and cover the substrate with a less-dilution metallurgically bonded coating after the removal of the laser. This new type of treatment can improve the surface properties of the material like wear resistance, corrosion resistance, heat resistance, and oxidation resistance, along with its electrical characteristics. The ordinary 60# steel can reach a hardness high as 2200HV after being laser clad with tungsten carbide and perform 20 times better in wear resistance. The wear resistance of the Q235 steel laser clad with CoCrSiB alloy is also better than the flame-spraying ones.

As an advanced economically beneficial technology, laser cladding can cover low-cost metal substrates with high-performance alloy coatings without changing their original properties and reduce the cost of rare metals. Every industrially advanced country in the world is paying great attention to related research.   

The superiority of rolling mill laser cladding technology can be reflected in the following aspects:

 1. High cooling velocity (106K/s). Fine-grained micro-structures and rare phases like unstable phases and amorphous phases that could not be formed under common conditions can be easily gained with this fast solidification process.

2. Low dilution rate (less than 5%). The metallurgical bond between the coating and the substrate, and the Interface diffusion bond can be controlled with the technical parameters of the laser to obtain an excellent low-dilution coating with adjustable compositions.

3. Less thermal input and distortions. The distortions can be controlled within the range of tolerance, especially when it’s been laser clad with high power density.

4. Unrestricted coating powders, especially when cladding the fusible metal substrates with refractory alloys.

5. Large coating ranges. The thickness of the coating can vary from 0.2 to 2.0mm with one single powder feed.

6. Regional cladding with superior cost efficiency.

7. Flexible beam-aiming cladding to the inaccessible areas.

8. Easily automated and totally fit for the repair of common abrasions. 

The rolling mill laser cladding technology can also be used in the wear resistance and corrosion resistance fields for its large range of applicability which covers almost every aspect in the machinery manufacturing industries, such as coal, petroleum, electricity, railway, automobile, and aviation. Take the petroleum industry as an example, a large number of equipment like valves, centrifugal pumps, oil pumps, plunger pumps, screw pumps, and compressors breaks down every year. These units are expensive and various in type, which makes them hard to repair. But it won’t be a problem anymore with the help of laser cladding technology.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The Solution For Slower Start-Up Speed Of Rolling Mill Machine

The Solution For Slower Start-Up Speed Of Rolling Mill Machine

The speed at which the rolling mill machine is started during operation has an important effect on the efficient operation of the rolling mill. If the rolling mill machine is slow to start when it is ready for operation, it indicates that the rolling mill has obvious defects in performance, which will seriously affect the working efficiency of the rolling mill. The force between the blank or the rolled stock and the roll also does not reach a good condition.

The rolling stock cannot be fully rolled in the rolling mill. In this case, the power consumption of the rolling mill is several times higher than usual. If this happens frequently, the speed of the rolling mill is not effective when it is turned on. Increasing the efficiency of the billet or the rolled piece will lower and lower. For the rolling mill machine, if the rolling mill is not capable of rapid overload start, the billet rolling speed will be too slow, and Hani Tech will analyze it. The reason why the rolling mill machine startup speed is slow. 

Before starting the rolling mill machine, first check the motor power, rolling speed, product specifications, hole type process, etc., to ensure that the blank load capacity does not exceed the bearing capacity of the rolling equipment, otherwise the equipment start speed will be slower. There is also a need to check the bearing of the rolling mill to see if the lubrication of the bearing is sufficient. If the lubrication is not enough, the start of the rolling mill machine will be slower or even malfunction.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The Structure Of Flying Shear

The Structure Of Flying Shear

With rolling continuous, high-speed, highly developed degree of automation, flying shear has become a continuous rolling lone indispensable equipment, mainly for hot-rolled and cold-rolled unit length, cutting head, cut tail, cut the sample as well as incident handling, including cold-rolled strip steel drum flying shear, generally arranged before the winding machine, cutting the strip, for sub-volume …. 

As key equipment Rolling Integral continuous production line, support roller bear products at the online clipboard with curly taken to task. Acid rolling mill output of up to 500,000 yuan / h, whether the normal operation of the shears, directly determine whether the normal capacity of the entire line of play. 

A steel rolling mill in 420 acid production early l 998 in the first half, frequently appeared on the shears can not cut the strip normal phenomenon, causing huge economic losses.

With a flying shear structure, the drum-type mill bearing, generally composed of three parts flying shear body gear and equipment lubrication piping, whose chassis and rotating hub into one, as a whole, not only set up to replace the pair often transfer hub, simple structure rigidity, high cutting precision. 

Flying shear machine body is shown in Figure l, including the transmission mechanism, and cutting mechanism. Flying shear drive mechanism, mainly by the electric motor, gearbox, and synchronous transmission gear mounted on the upper and lower rollers on the drive side of the composition.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The Structure Of Rolling Mill

The Structure Of Rolling Mill 

A rolling mill has a common construction independent of the specific type of rolling being performed:

· Work rolls

· Backup rolls - are intended to provide rigid support required by the working rolls to prevent bending under the rolling load

· Rolling balance system - to ensure that the upper work and backup rolls are maintained in proper position relative to lower rolls

· Roll changing devices - use of an overhead crane and a unit designed to attach to the neck of the roll to be removed from or inserted into the mill.

· Mill protection devices - to ensure that forces applied to the backup roll chocks are not of such a magnitude to fracture the roll necks or damage the mill housing

· Roll cooling and lubrication systems

· Pinions - gears to divide power between the two spindles, rotating them at the same speed but in different directions

· Gearing - to establish desired rolling speed     

· Drive motors - rolling narrow foil product to thousands of horsepower

· Electrical controls - constant and variable voltages applied to the motors

· Coilers and uncoilers - to unroll and roll up coils of metal

Slabs are the feed material for hot strip mills or plate mills and blooms are rolled to billets in a billet mill or large sections in a structural mill. The output from a strip mill is coiled and, subsequently, used as the feed for a cold rolling mill or used directly by fabricators. Billets, for re-rolling, are subsequently rolled in either a merchant, bar, or rod mill. Merchant or bar mills produce a variety of shaped products such as angles, channels, beams, rounds (long or coiled), and hexagons.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925

The Usage And Features Of Ladle Refining Furnace

The Usage And Features Of Ladle Refining Furnace

LF refining furnace was successfully developed in 1971 by Japanese technical staff. And the furnace hasn’t had vacuum equipment, so the heating arc processing occurs on the steel surface of the slag in which LF refining furnaces the so-called submerged arc refining.

When adding the synthetic slag, stirring the molten steel with argon is necessary, and the refining occurs under a non-vacuum-reducing atmosphere. Afterward, the LF Furnace was improved, it can refining in the vacuum and heated under the non-vacuum circumstance when the vacuum extraction equipment is installed.

The main use of an LF refining furnace is for primary melting furnace (electric arc furnace, Converter, intermediate frequency furnace) refining of molten steel. It’s crucial metallurgical equipment for producing high-quality carbon steel, alloy structural steel, bearing steel, tool steel, stainless steel, etc, and meets the needs of Continuous Casting and Continuous Ligation.

This kind of LF refining Furnace has functions electric are heating, argon stirring, wire feeding, measuring temperature and sampling, alloying, etc. And in the terms of purchasing the LF refining furnace, the users can make choice by the steel grade and smelting technology.

Please contact stella@hanrm.com for a quotation.

And free send inquiries to us.

Email: stella@hanrm.com   stellarollingmill@gmail.com

Whatsapp/Wechat:+8615877652925