Manufacturing Process
18 years professional hardware manufacturer - JM Hardware
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18 years professional hardware manufacturer - JM Hardware
JM Hardware® Screw manufacturing process
First, deliver the entire bundle of steel wires (plate element) to the factory, and then pickling
Insert the wires into the machine. Cut them and then use molds “extrusion.
Depending on the products to determine whether combined with washers, if it is not. Then deliver directly send “tapping.”
The use of different kinds of drill bits (top). The screw twist drill pattern.
Because the twist drill screw process requires constant lubrication with oil spray, then it will be covered with oil for screw do “de-oiled.”
In order to increase the strength and compressive strength of the screws, the screws will be sent to do the heat treatment.
In order to prevent corrosion and increase the beauty, we sent to sandblasting or screw plating, black handle.
Finally, after each inspection, we confirmed screws with no problem. It can be packaged shipped.
Manufacturing process
1- Cold Forging
This process is also known as Cold Heading. It is the basic operation in most bolt and screw plants to give their heads. The material is squeezed into a cavity of a mold, normally at room temperature, and the resultant part is a nail, a bolt or a screw with the head. The tooling is relatively simple and cheaper, moreover it offers other benefits such as better surface finish, improved dimensional stability and efficient use of material.
2- Machining
Basically, it is a removal process where jobs of desired size and shape are produced by gradually removing the excess material in the form of scrap with the help of sharp cutting edges or tools. Screw blanks go into a die, called a head-slotting machine, then the machinery fastens them into channels positioned around the perimeter of a wheel on the head-slotting machine. As the wheel revolves, a circular cutting device slots the screws.
Since our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, building a stage for employees to succeed, and making a positive contribution to the society.
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