Workpiece Standing Type HYJ& YTJ Series H Beam Flange Straightening Machine

1.     Common Points of HYJ&YTJ series Automatic H Beam Straightening Machine:

As sump up, this is product category covering all the previous introduced Automatic I Beam Flange Straightening Machine. These products have common grounds of:

1)      Purpose of the H Beam Straightening Equipment:

As final step of H Beam Production Machine, to straighten H Beam flange deformation after H Beam Submerged Arc Welding Machine;

2)      H Beam Position during Straightening Process in H Beam Straightening Machine:

H Beam flange is in the direction of “Vertical Standing”in H Beam Straightening Machine: (Fig.1)

3)      Straightening Unit in the H Beam Straightening Machine: (Fig.2)

All these Automatic I Beam Straightening Machine (Same meaning as for H Beam) straighten the flange by means of the T shape cavity, which is formed by the two pieces of top straightening rollers, and one piece of bottom straightening roller.

2.     Variations in Technical Aspects of HYJ&YTJ series Automatic I Beam Flange Straightening Machine:

To achieve this target of flange straightening on various thickness and material (Q235, Q345, 16Mn, etc.) of welding H Beam, there are several variations in H Beam Production Machine of these I Beam Straightening Machine in terms of:

1)     Straightening Rollers Movement and Driving style in H Beam Straightening Machine: (Fig.3)

a)       Whether it is top or bottom straightening rollers to perform the job;

b)      Whether it is driven with mechanical motor reducer or hydraulic station;

2)     Top Straightening Rollers Span Manipulation (To cater for changed flange width) and Web Tighten Unit in H Beam Straightening Machine: (Fig.4,5)

As introduced in previous products, for these important units affecting straightening outcome, of H Beam Straightening Equipment whether it is made with manual handwheels thru leadscrew, or hydraulic oil cylinder;

3)    Power of Main Motor and Hydraulic Oil Pump, and hence its Pressure and Output Torque in H Beam Straightening Machine:  

These are determined by specific workpiece size and flange thickness;

4)    Execution unit in H Beam Straightening Machine:

a)       Straightening rollers of these Automatic H Beam Straightening Machine have varied size (diameter) based on web height and thickness: (Fig.6) 

b)      Which means, in general, straightening rollers of hydraulic I Beam Flange Straightening Machine are larger than those of mechanical type;

c)       Within the product group of mechanical HYJ-series automatic H Beam Straightening Equipment, straightening rollers of HYJ-800 are larger than those of HYJ-40;

d)      This is true with hydraulic I Beam Straightening Machine also, that descending sequence in terms of straightening roller size is YTJ80/60/50/40;

5)    Consumables in H Beam Straightening Equipment

a)       Unlike other H Beam Production Machine, in Automatic H Beam Straightening Machine. there are no consumables for its daily operation;

b)      The parts with maximum wear are top and bottom straightening rollers. They are forged integrally, of material 35CrMo, and hardness HRC50-55, guaranteeing long life service without defects such as cracking. These straightening rollers have same service life as the I Beam Straightening Machine itself;

6)    Straightening speed in H Beam Straightening Machine

a)       The HYJ series and YTJ series mechanical and hydraulic Automatic H Beam Straightening Machine have different straightening speed as below:

        i.           HYJ-800 mechanical:                   17m/min.;

       ii.           HYJ-40 mechanical, YTJ-40/50 hydraulic:  9m/min.;

      iii.           YTJ-60/80 hydraulic:                    6.3m/min.

b)      In the process technology of H Beam Production Machine, H Beam Straightening Machine has the quickest processing speed, compared with the former steps of H Beam assembly Machine and H Beam Submerged Arc Welding Machine, which assembles and welds H Beam in the working speed of around 200~ 2000 mm/min.;

c)       In this sense, HYJ-40 mechanical Automatic H Beam Straightening Machine is more applicable for being applied automatic H Beam production line:

i.           Usually for an automatic H Beam Product Line, submerged arc welding is bottleneck, with welding speed of average 2000 mm/min.;

ii.           With four sets of LHC column type H Beam SAW machine in a line, the SAW welding matches with 9m/min. straightening speed of HYJ-40 Automatic H Beam Straightening Machine better than 17m/min. of HYJ-800 Automatic H Beam Straightening Machine;

iii.           In automatic line, operator of the HYJ-800 needs to wait for delivery of SAW process, which deteriorates Line Balance Rate of whole H Beam Production Line.

3.     Technical Parameters of HYJ& YTJ Series Automatic H Beam Straightening Machine:

Below are specifications of this product family of mechanical and hydraulic HYJ&YTJ-series H Beam Straightening Equipment (H Beam Production Machine):