Engineering process of wire production includes series of typical operations which are repeated from 1 up to 3 times depending on the ordered diameter of wire:
heat treatment of metal,
preparation of metal surface for drawing,
drawing on the given diameter.
Additional operations — coatication of different coatings or heat treatment — are introduced in the engineering process of wire production for special properties of wire.
The heat treatment of wire is performed in kilns with low-oxidation heating. For fire scale pulling-off solutions of sulphuric and hydrochloric acids are used. Borax, phosphate salts, lime carbonate and copper is used as a sublubricating layer.
The wiredrawing is carried out on the mills with blast cooling of draw rings and drums that ensures high strength and plastic properties of metal. Use of modern lubricants ensures specific properties of wire according to the customers' requests: high corrosion stability, low amount of lubrication on the surface, high adhesion to different materials and so on. Drawing equipment is systematically renewed and equipped by additional facilities for internal voltage pulling-off.
Zinc coating is applied by the method of wire dipping in the melt and allows to produce wire with different thickness of coating. Use of special cleaning materials and emulsions makes smooth and bright zinc coating protected from corrosion for a long term.
Wire is delivered to the consumer in 5 — 180 kg bundles, in 200 — 1000 kg coils, in 200 — 800 kg “rosetta” type bundles, in BS 60 type reels.
Parameters of coils, bundles, reels
Type of coiling
Weight, kg
Geometric sizes, mm
Packaging technique
Inner diameter, mm
External diameter, mm
Height
Bundles
5-20
110-120
270-280
130-140
Mild steel wire
10-30
140-180
320-350
120-180
60-90
230-270
400-450
140-180
80-150
330-400
460-500
180-200
100-180
400-450
680-720
200-250
180-300
1000-1200
1300-1400
200-230
1900-2000
2300-2400
200-230
800-1000
1000-1200
1300-1400
300-350
Steel-cord belt
1900-2000
2300-2400
300-350
"Rosetta" type bundles
400-800
340-360
720-730
700-900
Z-2S coil with cardboard sidewall
200-250
356
650
200
Z-2 coil with cardboard sidewall
300-400
356
720
280
Coil
300-400
490-510
710-730
310-320
600-800
390-400
770-800
490-510
900-1100
320 - 460
800 - 810
490-510
BS 60 type metal reels
20-30
33+/-1
255+/- 2
170+/-3
no
Welded wire carcasses
20+/- 2
180
300
98
Coaling technique of the produced wire
Type of coiling
Weight, kg
Tare or special means of transportation
Wire
Diameter, mm
Denomination
Bundles
5-20
Wooden boxes
0,20-0,50
Rope steel wire, spring wire, cable wire, wire for high pressure hoses, polygraphic wire, low-carbon wire
10-30
Wooden boxes
0,50-0,70
60-90
3-5 bundles in one parcel
0,80-1,30
Rope steel wire, spring wire, welding wire, low-carbon wire, spoke wire, wire for cold heading
80-130
3-5 bundles in one parcel
1,40-2,20
100-180
3-5 bundles in one parcel
1,80-6,00
180-300
3-5 bundles in one parcel
3,00-5,00
Reinforcing high-strength wire
800-1000
No
3,00-5,00
“Rosetta” type bundles
400-800
No
1,60-5,00
Low-carbon heat-treated zinc-coated wire
Z-2 coils with cardboard sidewall
200-250
Two coils on the timber pallet
0,60-1,00
Rope wire, spring wire, welding wire, polygraphic wire, low-carbon wire
Z-2 coils with cardboard sidewall
300-400
Two coils on the timber pallet
0,80-2,20
Coils
300-400
No
1,60-4,50
Zinc-coated wire for communication lines, wire for cores of conductors, low-carbon wire
600-800
No
1,60-4,50
900-1100
No
2,40-6,00
Rope wire, spring wire, welding wire, low-carbon wire, spoke wire, wire for cold heading
S 60 type metal reels
20-30
Timber or metal pallet
0,20-0,50
Rope wire, spring wire, cable wire,wire for high pressure hoses, polygraphic wire, low-carbon wire
