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Hexagonal screw production process

A production process and screw technology, which is applied in the field of hexagonal screw production process, can solve the problems affecting the wire drawing accuracy, etc., and achieve the effects of reducing the dimensional accuracy of the wire drawing die and the characteristics of the wire itself, improving the accuracy of the wire, and reducing the heat.

Active Publication Date: 2020-11-03
SHANGHAI HONGTING FASTENER MFG CO LTD
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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that there is a problem that the wire drawing accuracy is affected by the high temperature of the wire rod

Method used

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Embodiment Construction

[0046] The following is attached Figure 1-5 The application is described in further detail.

[0047] A hexagonal screw production process, such as figure 1 shown, including the following steps:

[0048] A: Wire drawing, the steel bar is sent to the wire drawing machine for drawing treatment and coiled on the wire frame to obtain a wire rod that is easy to process;

[0049] B: annealing, sending the wire rod obtained in step A into an annealing furnace for annealing treatment;

[0050] C: pickling, put the wire rod annealed in step B into a tank filled with pickling solution, and pickling the pickling solution for 5-15 minutes under the condition of heating to 50°C-60°C;

[0051] D: Cleaning, wash the wire rod and wire pickled in step C, then hang it into the tank with neutralizing solution, and neutralize it at room temperature for 1-3 minutes; then hang the wire rod into the tank with clear water liquid , wash at room temperature for 1 min;

[0052] E: Phosphating: hoist ...

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Abstract

The invention relates to a hexagonal screw production process, and relates to the technical field of screw manufacturing. The hexagonal screw production process comprises the following steps of A, wire drawing, specifically, drawing a reinforcing steel bar to obtain a wire rod convenient to process; B, annealing, specifically, annealing the wire rod; C, pickling, specifically, pickling the wire rod; D, cleaning; E, phosphatizing, specifically, phosphatizing the wire rod; F, saponification, specifically, washing the wire rod with water, hanging the wire rod into saponification liquid, and performing saponification for 3-7 minutes at the temperature of 75-80 DEG C; G, finish drawing, specifically, sending the wire rod into a finish drawing machine to be subjected to multi-stage wire drawingtreatment; H, heading; I, tail clamping; J, spiral line making; K, surface treatment; and L, electroplating. In order to solve the problem that in an existing hexagonal screw machining process, the wire rod is greatly influenced by temperature, the production process has the effects that the wire rod is cooled in the wire drawing process, and the wire drawing precision is improved.

Description

technical field [0001] The present application relates to the technical field of screw manufacturing, in particular to a production process for hexagonal screws. Background technique [0002] A screw is a tool that uses the circular rotation and friction of the inclined plane of the object to tighten the parts of the device step by step. Screws are indispensable industrial necessities in daily life, such as tiny screws used in cameras, glasses, clocks, electronics and other products; commonly used screws in TVs, electrical products, musical instruments, furniture, etc., as well as screws used in engineering, construction, and bridges. Large screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important. Screw is a common invention in people's production and life for thousands of years. According to the application field, it is the largest invention of human beings. [0003] In the screw productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/10B21C3/14B21C1/14B21C1/12B23P15/00
CPCB21C1/10B21C3/14B21C1/14B21C1/12B23P15/00
Inventor 屠乾宏陈俭张勇祝建华
Owner SHANGHAI HONGTING FASTENER MFG CO LTD
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