 |
|
||||||||||||||||||||||||||||||||
Detailed Info
technological process for making nail---
1.1---
Q:how should we USE raw materials(wire rod/wire roll) TO make nail?
A:first of all,we need change diameter of raw materials into the dia. suitable to make nail.
diameter of materials(wire rod/wire roll):6.5mm
materials texture:
low-carbon steel(type:Q195,Q235) for common nail
middle-carbon steel(type:NO.45 steel)for concrete nail
usually,we use continuous,vertical,pulley-type wire drawing machine to change wire rod diameter.
advantage of this kind of wire drawing machine is that it consists of 6 drums,
there is one small dies(wire drawing dies) installed on each drums,
we only need operate one time and just can realize the changing of diameter from thickness to thin.
for example,our LW-1-6/550 continuous vertical pulley-type wire drawing machine include 6 pcs drums.
each drum has 1 pcs wire drawing dies,dies diameter is more and more thin from NO1.drum to NO.6 drum,
as below:
dies dia. drum NO.
NO.1 drum
NO.2 drum
NO.3 drum
NO.4 drum
NO.5 drum
NO.6 drum
5.6mm
4.7mm
4.0m
3.3mm
2.8mm
2.5mm
wire roll(materials) diameter will become more and more thin from first dies to the sixth dies owing to
the drawing force of wire drawing machine and the extruding of dies.
that means we can directly change wire roll dia.from 6.5mm to 2.5mm for one time.
productivity is high,only one person can operate this machine.
there are two kinds of motor equipped with our machine,common motor,common motor with frequency changer.
by using common motor with frequency changer,it can easily and efficiently control each machine’s speed.
of course,their price is not same.
for the purpose of extending working life of wire drawing dies,wire drawing powder(lubricant)
need be used to lubricate dies.
1.2---
Q:what auxiliary equipments do we need when we use wire drawing machine to change wire roll diameter?
A: auxiliary equipments we need include:
1.2.1
wire pointing machine
main function:it will be used before drawing wire to sharpen wire head in order to get through the first
wire drawing dies installed on NO.1drum.
for example,the dia. of first dies installed NO.1drum is 5.6mm,but our original wire roll dia. is 6.5mm,
it is impossible to make wire roll with 6.5mm dia. to get through the dies with 5.6mm dia.,
so,we need use wire pointing machine to sharpen wire head and make the dia.of wire head is less than
5.6mm so as to successfully make wire roll getting into the first dies.
1.2.2
descaling machine
main function:it will be used before drawing wire to remove rust and oxide scale on the surface of wire roll.
1.2.3
butt-welding machine
main function:it is used to re-weld broken steel wire.
in the process of drawing wire roll,wire roll probably broken,so we need this small butt-welding machine to
re-weld two broken wire together.
1.2.4
discharging machine
main function:it will be used to discharge finished metal wire from last drums of wire drawing machine and
put on the shelf(wire lay-off frame)so as to be ready for making nail.
usually,finished metal wire is so heavy,it is difficult to move by hand,so,we must use discharging machine to move wire roll.
1.2.5
wire lay-off frame(the shelf for putting wire roll or finished metal wire),which is used to put wire roll or finished metal wire.
technical parameter
for continuous,vertical,pulley-type wire drawing machine and its auxiliary equipment:
product name
model
inlet wire dia.
outlet wire dia.
output
power
dimension(mm)
weight(kg)
wire drawing machine
LW-1-6/550
6.5mm
2.5mm
245m/min.
18.5kw
1700*1150*1750
2000
wire drawing machine
LW-1-6/350
2.5mm
0.75mm
200m/min.
7.5kw
1300*600*1500
900
wire pointing machine
FZ-6
pointing range:
6.5-1.0mm
3kw
700*500*900
250
descaling machine
SW-500
max.inlet wire dia.:
8.0mm
150m/min.
no power
800*500*750
100
butt-welding machine
UN6.5-1
welding range:
6.5-1.0mm
5.5kw
500*500*900
250
discharging machine
DM-500
max.hoist weight:
500kg
2.2kw
500*450*2000
600
wire lay-off frame
in consideration of investment cost,customer also may do not buy wire drawing machine and its auxiliary equipment for beginning,
we suggest that our customer directly buy finished metal wire with fixed diameter and suitable to make nail from china's
wire drawing factory or your local wire factory.
1.3---
Q: after making finished metal wire,how should we make nail?
A:
