Screw processing steps
The process of screw manufacturing includes: coil element -
annealing - Pickling - cold heading - wire
rubbing - heat treatment - electroplating - packaging.
1. Disc element: it is made of steel embryo by heating and rolling.
Pan Yuan was made from wool
embryo after rolling.
2. Annealing: heat the material to a certain temperature and keep
it for a certain time, and then cool
it to adjust the crystalline structure, reduce the hardness and
improve the room temperature
workability of the wire rod.
3. Pickling: the method of removing iron oxide (rust) on the steel
surface with acid solution is
called pickling. Is a method of cleaning metal surfaces. It is
usually carried out together with pre
membrane.
4. Cold pier: cut the wire rod, form the pier into screw embryo,
form the head, make other head
types such as cross groove, thread embryo diameter and rod length,
fillet under the head, etc.
Advantages of cold pier: cold pier can be metal parts, and the
mechanical properties can be improved.
Cold pier technology can improve material utilization.
Cold pier process can greatly improve productivity.
Due to the use of multi station cold heading machine, each process
is processed simultaneously on
one machine tool, so as to reduce equipment investment, reduce the
raw space occupied by the
equipment, reduce the transportation of semi-finished products
between various processes,
especially reduce the labor intensity of workers and improve the
working conditions.
Cold pier technology can improve the surface finish of products and
ensure the accuracy of products.
Requirements for raw materials for cold pier: firstly, it is
required to have high plasticity and low
hardness. For steel, the surface hardness is generally 78-85hrb;
Secondly, the surface quality requirements are very high, and
surface defects such as scratches,
hemp spots and rust are not allowed;
Finally, the requirement of dimensional accuracy should also be
high;
5. Thread rolling: the processing method of rolling the blank into
a spiral groove when the two
washboards move relative to each other. This process replaces the
original turning process, which
not only saves materials, reduces production costs, but also
reduces labor costs.
6. Heat treatment: strengthen the strength, hardness and toughness
of screws. After ordinary screws
are buckled into screws by the screwing machine, there are profits
left in the screws, and the threads
tend to look into the screws. After quenching and tempering or
quenching, the internal quality of the
screws can be effectively improved.
7. Electroplating: electroplating is the process of plating a thin
layer of other metals or alloys on some
metal surfaces based on the principle of electrolysis. It is a
process of attaching a metal film to the
surface of metal or other material parts by point solution, so as
to prevent metal oxidation, improve
wear resistance, conductivity, reflection, corrosion resistance and
beauty, The outer layer of the coin is
formed after electroplating.
Furniture Leveling Feet Parameter
Furniture Leveling Feet Size
Furniture Leveling Feet Material
| Name | KTC Foot |
| Model | KTF-V |
| Type | Cushioning Type (NBR/Urethane Pad) Series |
| Application | Conveyor, Automatic facilities, Amusement machine, Vending machine |
Furniture Leveling Feet Describe
Application.
Conveyor, Automatic facilities, Amusement machine, Vending machine.
Furniture Leveling Feet Scope of application
About us.
KTC (Bejing Korea Technology Caster Co., Ltd.) was founded in 2007.
KTC is a modern
company specialzingin the production of multi function &high
quality CASTER and
KT FOOT based on best design and design technology.
KTC.
The company is headquartered in Niulanshan Industrial Zone,Shunyi
District, Beijing. KTC
adopts international advanced production testing equipments,
professional intelligent
production management system and professional design flow. Now the
company produces
multi function & high quality production, such as KT CASTER and KT
FOOT, among which
high quality of height adjusting CASTER,shockproof type CASTER,
high quality of height
adjusting CASTER, shockproof type CASTER,high load CASTER and level
adjusting FOOT
are widely used in the world's advanced automation equipment and
semiconductor e
quipment industry.
In order to manufacture the world's highest level of products,KTC
use the best processing
technology and equipment. And KTC continuously launches world top
level of new products.
KTC's s also has set up a branch in Korea, so it is favored by
theusers of various fields around
the world.
