SMS No-twist Wire Rod Mill

SMS No-twist Wire Rod Mill

SMS designed a set of rocker arm type high-speed wire rod mill with adjustable roll gap. There are two types of rolling mills layout. One is similar to Morgan type wire rod mill. The adjacent frames are arranged at 90 degrees and 45 degrees alternately with the horizontal plane. The other is that the adjacent frames are still arranged at 90 degrees, but the other is that the adjacent frames are still arranged at 90 degrees with each other. They are at 15/75 degrees above and below the horizontal plane.

According to rolling different steel grades, SMS Group developed three kinds of wire rod finishing mills:

• High-pressure reduction finishing mill for common steel grades with elongation of 14.5%.
• The elongation of the finishing mill for high-quality steel grades reaches 9.54%.
• The elongation of high-grade alloy steel can reach 6.93% in the finishing mill.

The three types of finishing mills have the same basic design, but the reduction rate of each stand is different. So the speed distribution is different. The low reduction rate is used for rolling high deformation resistance steel, while a very high reduction rate can be used for finishing mill when rolling common carbon steel. SMS finishing mill can roll threaded steel bars with diameters of 5.5-16 mm and 6-14 mm, in addition to wire rods with diameters of 5.5-16 mm. The unit has the following characteristics:

The structure of all stand of wire rod finishing mill is the same, so it can be interchanged, and the spare stand can be reduced, which reduces the investment accordingly.

The diameter of the roll ring is standard 210mm. Compared with other roll rings with smaller diameter, it can reduce the rotational speed of the driving system and improve the service life of the rolling groove.

With hydraulic quick clamping and loosening device, the roll ring part can be quickly changed, which can ensure the high productivity of the finishing mill.

The roll shaft installed in the rocker arm can adjust the roll gap symmetrically in a wide range, so as to keep the rolling line constant, which is very advantageous for stabilizing the rolling process, reducing production accidents, and improving the mill operation rate.

The rocker arm mechanism is used to increase the cross-section coefficient of the roller bearing, improve the stiffness and strength of the rolling mill, thus improving the precision of the product and the rolling force of the finishing mill.

The driving system does not use a coupling to prevent vibration.

Compared with the standard roll ring, the life of the tungsten carbide roll ring groove is increased from 400 tons/mm diameter to 900-1000 tons/mm diameter, and the time interval of roll ring replacement is greatly increased.


Please contact stella@hanrm.com for a quotation.
And free send inquiry to us.
Whatsapp/Wechat:+8615877652925

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500,000 tons (10-39mm) Mini Rebar Mill for Sale

500,000 tons (10-39mm) Mini Rebar Mill for Sale


We have following rebar mill for sale.
Rebar rolling  mill, Walking Beam Reheating Furnace ( 95 t/ Hour )
Capacity : Rebar 10-39mm ,normally D32


Here is more detail

 Rolling Mill Maker: Hangji (H1-V18 including 3 sets of convertible (C10 &C14 &C16) and 3 sets   of  dividing shear
 Bending Machine: 2 sets
 Cooling Bed: 78m x 12m
 Production of finished products: Rebar (D10 -D39)
 Annual Capacity: 500,00 TPY


Free send inquiry to stella@hanrm.com if any needs.
Whatsapp/Wechat:+8615877652925
Website:  https://www.hanrm.com



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186,000 Tons/Year Rebar Mill for Sale

186,000 Tons/Year Rebar Mill for Sale

We have a rebar mill with 32 tons /hour capacity for sale.

Production Size: Bar (D10, D13, D16, D19)
Production capacity: 186,000 tons /year  ( heating furnace not available )
Billet  Size : Billet 120Aq, 125Aq,  Length: Max. 3m
Make: China manufacturer
Year Original manufacturing 2001
Revamped in 2014 and 2016

Scope of supply :
 Roughing mill ( 3 Hi /8 passes)
 Intermediate mill(2Hi/10 passes)
Finishing mill(2 HI /6 passes)
Cooling bed: 6.8 meters x 53 meter
Cutting machine: 3000 tons of capacity
Bar handling equipment

Reheating furnace is not included
Currently dismantled for reinstallation.


Free send inquiry to stella@hanrm.com if any needs.
Whatsapp/Wechat:+8615877652925
Website:  https://www.hanrm.com

More News You May Interesting:

Morgan Wire Rod Mill

Crank Type Flying Shear

Characteristics of Electric Arc Furnace Steelmaking

Why does the Steel Bar Bend after being Cut by Flying Shear?

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

Continuous Casting Machine

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Cardan Shaft Assembly and Routine Maintenance

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

                       

Development of Wire Rod Mill

    At present, Asia is the fastest-growing economy in the world. However, China is the focus of Asia. Under such a rapid development situation, China's infrastructure has developed rapidly, and various types of wires have been in short supply. The original old-fashioned horizontal rolling mill and double-rolling mill are far from meeting the needs of today's market development in terms of accuracy and quality, as well as in terms of output and control level.

    Therefore, in the late 1960s, with the continuous improvement of the technical level, various new types of high-speed twistless finishing mills were developed in the world, and the wire weight was increased from tens of kilograms to two and a half tons. The final exit speed of the rolling is increased from the original 20m/s to 30m/s to the current 130m/s, and the finished product tolerance is ±011mm.

Due to the smooth surface quality of the wire, the head-to-tail tolerance value is small, and the metallographic structure is more uniform after the water-cooling and the loose-rolling control are cooled, so that the wire can be drawn without heat treatment, thereby greatly reducing the cost and receiving a large number of users. Praise and welcome.

At present, representative finishing mills include internal drive 45-degree wire rod mill, external mesh drive 45-degree finishing mill, X type 45 degree centralized drive finishing mill, Y type three-roll finishing mill, flat roll drive finishing mill, 75 degrees. ×15 degree concentrated transmission finishing mill six types.

Compared with the old-fashioned rolling mill, these rolling mills have the following characteristics:
1. Single-line continuous rolling, convenient and safe operation;
2. High rolling speed, currently up to 130m/s;
3. Convenient for changing rolls;
4. Convenient for changing guides;
5. High, low cost;
6. Wire rod tolerance is small, the surface is smooth;
7. Wire rod has high internal quality;
8. High level of automation control.

In recent years, China's wire rod mill equipment has developed very rapidly.

More News You May Interesting:

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Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

What is a Metal Drawing Machine?

Straight-in Wire Drawing Machine Applicable Standards

Wet Drawing Machine Transformation Process Requirements

Wet Wire Drawing Machine Working Principle

Advantages of Hot Rolling Mill

Advantages of Hot Rolling Mills

According to the hot rolling mill manufacturer, the rolling mill is indispensable equipment in modern metal rolling, and we can use two different methods. For example, you can choose hot rolling or cold rolling. Obviously, the two methods are relative.

In fact, what we mean by hot rolling is mainly a process in which rolling is completed above the recrystallization temperature. Roll mill professional manufacturers believe that the use of hot rolling can enjoy some benefits, then, do you know the main advantages of which? Let's take a look at the main content of this aspect.

The mill manufacturer explained that the advantages of the hot rolling mill can be summarized into three aspects. First, the use of hot rolling can significantly reduce energy consumption and reduce costs. In addition, high-metal plasticity can be exerted during hot rolling, and the deformation resistance generated is small, and the metal can be effectively prevented from being severely deformed.

According to the rolling mill manufacturer, the second advantage of using hot rolling is that it can properly improve the processing performance of metals and alloy materials. That is to say, it can crush larger crystal grains and reduce the occurrence of cracks, which is equivalent to reducing defects in the casting process and improving the processing properties of the alloy.

The last advantage is that the hot rolling process is more conducive to continuous and automated. The rolling mill professional manufacturer explained that in this process, we generally use large ingots to reduce the amount of rolling, so it can also improve the efficiency of the work while creating favorable conditions for increasing the rolling speed.

The above is the main advantage of the use of hot rolling by the rolling mill professional manufacturers. I believe that everyone has a clear understanding of this content.

Purchasing Rolling Mill Equipment Quality Priority

Priority Should be Given to Quality When Purchasing Rolling Mill Equipment

Such important processing equipment as rolling mill must be carefully considered when purchasing. Of course, many users will pay more attention to the price first, but also need to consider the quality of the equipment as much as possible.If conditions permit, it is best to visit the rolling mill manufacturer for consideration, so as to see the manufacturing technology of the equipment manufacturer, and also to ensure that the equipment purchased can be put into use after installation.

In fact, when selecting and purchasing rolling mills, the quality and performance of the equipment should be considered first. Because of the quality is not guaranteed, there may be a lot of unnecessary troubles in the later use period, and even may lead to unusable, so we need to give priority to the quality of products, and then choose.

At the same time, the selected new mill also needs to comply with the relevant requirements when it is installed. There are many differences between different rolling mills, so it is necessary to carefully read the instructions for the use and installation of the equipment when installing.Especially when the electronic control system is installed, special attention should be paid to it. Because of the long process layout of rolling line, the requirements of the mutual elevation difference and centerline between the equipment are stricter.

In addition, in the installation operation, it is necessary to select the appropriate installation location. If equipment on rolling line is installed on soft ground, the uneven settlement and displacement of equipments need to be taken into account. This is also the reason why the equipments need to bury the settlement observation points on the basis of central benchmark, datum point, and rolling mill before installation, and make regular measurements. Only when the settlement and displacement become stable can the equipment be adjusted accurately.

In addition, in the work of rolling mill, due to the heavy load, special attention should be paid to the selection of suitable roller bearings. Usually, the mechanical properties of hot rolling mills are better than those of rolling mills, and the properties of steel products are naturally better.

HOT ROLLING MILL PROJECT

HOT ROLLING MILL PROJECT

2. Production wire rod mill line Summarize

  1) Annual Capacity: Around 30,000tons wire rod mill

  2) Raw material: 100*100*3000mm billet 

  3) Finished products: wire rod ¢5.5--¢12

  4) Steel-types of rolling：Low carbon alloy steel, stainless steel, plain  carbon steel

2. Power consumption of total loads for the equipment

     Around 2650kw Approximately

3. Total price for the Turn Key ( Including Furnace, motor, etc. )

      

4. Design process: 

   The Billets feeding into the reheating furnace, and come to the rolling mill, through 3hi rolling mill to 2hi rolling mill, after 22 passes, and become finished products wire rod.

5. All equipment list from Manufacturing Area：

1).  Φ350 Rough rolling mill, 3-hi

Scope of supply

Item	Quantity	Note
Φ1800mm flying wheel	1 set	cast steel
Reducer 1pcs	1pcs	cast steel (herringbone tooth)
Three axle box A=350mm	1pcs	cast steel
Cardan joint	3pcs	cast steel
Rack  A=350mm	1set	cast steel
Mill roll	3pcs	70MO2Mn
Bearing pedestal	6set	cast steel
630KW-8 Motor	1pcs	630kw

2). Φ280 Rough rolling mill, 3-hi

Item	Quantity	Note
Motor	1set	540KW
Reducer 1pcs	1set	cast steel (herringbone tooth)
Three axle box A=350mm	1pcs	cast steel
Cardan joint	3pcs	cast steel
Rack  A=280mm（3-hi）	2set	cast steel
Rack  A=280mm（2-hi）	1set	cast steel
Mill roll	8pcs	70MO2Mn
Bearing pedestal	16sets	cast steel

Item	Quantity	Note
Motor	1pcs	280KW
Reducer	1pcs	ZD60
Composite reducer	1pcs
Herringbone tooth 2-axle box	2pcs	A=250
Rack	6pcs	A=250
Cardan joint	12pcs	SWP235type
Mill roll	12pcs	Nodular cast iron
Bearing pedestal	24set

3).  Φ250 one-drive-two rolling mill, 1 set    (K6--K5)              

    

4).  Φ250 one-drive-two rolling mill, 1 set    (K4--K3)  

Item	Quantity	Note
Motor	1pcs	280KW
Reducer	1pcs	ZD60
Composite reducer	1pcs
Herringbone tooth 2-axle box	2pcs	A=250
Rack	6pcs	A=250
Cardan joint	12pcs	SWP235type
Mill roll	12pcs	Nodular cast iron
Bearing pedestal	24set

5).  Φ250 one-drive-two rolling mill, 1 set   (K2--K1)                  

Scope of supply

Item	Quantity	Note
Motor	1pcs	320KW
Reducer	1pcs	ZD60
Composite reducer	1pcs
Herringbone tooth 2-axle box	2pcs	A=250
Rack	6pcs	A=250
Cardan joint	12pcs	SWP235type
Mill roll	12pcs	Nodular cast iron
Bearing pedestal	24set

6. Other equipment：

Item	Quantity	Note
Reheating furnace	1set	22m*3.5m
Pushing device	1pcs	form a complete set
Discharge machine	1pcs
Runout roller table	1set
Scattered cold roller	1set	40m
Head cutting shear	1pcs	Form  A  complete set
Tail cutting shear	1pcs
Pinch roll	2pcs
Winding machine	1set
Before the roller billet	1set
Lift roller	3set
Transportation Roller	3set
The connection roller	1set

7. Wire Rod Mill Layout: