CN111981906A - Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof - Google Patents

Abstract

The invention discloses a stainless steel wire used for making body armor batting and a production process thereof, comprising a positioning braided layer, the inner wall of the positioning braided layer is provided with a sealing layer, the inner side of the sealing layer is filled with filling cotton, the Nine middle support columns are installed on the inner side of the batting, and four finished steel wire bodies are fixedly installed on the outside of the middle supporting columns inside the filling batting. A coating layer is provided on the surface of the inner steel wire inside the filling cotton, and a heat-reducing coating is provided on the outer side of the coating layer. By using the heat treatment process between the multi-step treatments of the steel wire, the present invention can effectively improve the plasticity of the steel wire before deformation and the strength after the drawing operation, thereby meeting the use requirements of the bulletproof vest, and by controlling the surface reduction in a single drawing process rate, which is convenient for the uniform deformation of the steel wire, and the quality of the finished product is higher.

Description

A kind of stainless steel wire for making fluff of bulletproof vest and production process thereof

technical field

The invention relates to the technical field of steel wire production, in particular to a stainless steel wire used for making fluff of bulletproof vests and a production process thereof.

Background technique

With the rapid development of society and economy, the use of stainless steel is increasing, the content of stainless steel alloy is high, and the price is relatively high, but the service life is much higher than that of other steel types, and the maintenance cost is low, which is the steel type with the lowest use cost; stainless steel It has high recycling rate and less environmental pollution. It is a green environmental protection material that improves the environment and beautifies life. Stainless steel wire is an important variety in the stainless steel product series, mainly used as raw materials for manufacturing. my country's economy is currently based on the manufacturing industry, so the proportion of stainless steel wire consumption in my country's total stainless steel consumption is significantly higher than that of developed countries; stainless steel wire needs to be added to upgrade the strength in the process of manufacturing body armor batt.

However, the existing production process of stainless steel wire is too simple for the heat treatment of the steel wire, which causes the steel wire to be prone to wounds during multiple drawing processes, and the strength does not meet the requirements; therefore, it does not meet the existing needs. Stainless steel wire used for making body armor batting and its production process.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a kind of stainless steel wire for making body armor batting and production process thereof, to solve the problem that the production process of the existing stainless steel wire proposed in the above-mentioned background technology is too single for the heat treatment of steel wire, resulting in repeated drawing During the process, the steel wire is prone to wounds, and the strength does not meet the requirements.

In order to achieve the above purpose, the present invention provides the following technical solutions: a stainless steel wire for making body armor batting, comprising a positioning braided layer, the inner wall of the positioning braided layer is provided with a sealing layer, and the inner side of the sealing layer is filled with a filling layer. Cotton batts, nine middle support columns are installed on the inner side of the filled cotton batts, and four finished steel wire bodies are fixedly installed on the outside of the middle support columns inside the filled cotton batts, and the finished steel wire bodies include inner steel wires, plating layers and heat reduction Coating, the surface of the inner steel wire is provided with a coating layer inside the filling batting, and a heat-reducing coating is provided on the outer side of the coating layer.

A kind of stainless steel wire for making body armor batting and production process thereof, comprising the following steps:

Step 1: Select the wire rod, the raw material for steel wire production, and then remove the iron oxide scale on the outer surface of the wire rod. The chemical phosphorus removal method can prevent the iron oxide scale from damaging the mold and the surface of the steel wire during drawing;

Step 2: After the steel wire has undergone chemical phosphorus removal and surface coating pretreatment, the hydrogen in the steel base is removed by low-temperature heating. Specifically, a chain drying furnace is used for drying in the range of temperature S1, and the chain running speed is controlled. in V1;

Step 3: Coating the surface of the steel wire after drying, mainly by applying lubricant for protection, in which coating treatment is still required after the coating to improve the drawing efficiency of the steel wire

Step 4: heat treatment for all three states of the steel wire, specifically, preliminary heat treatment of the steel wire raw material to eliminate internal stress; heat treatment for the semi-finished steel wire after drying to improve the plasticity of the steel wire; Heat treatment of finished products to suit delivery requirements and production specifications;

Step 5: The steel wire after heat treatment in the semi-finished product is subjected to copper plating operation on its surface, in order to create good lubricating conditions for drawing and select the electroplating treatment for the use conditions of the steel wire, and use electroplated brass to cover the surface of the steel wire;

Step 6: After the treatment is complete, the steel wire is pulled through the reel of the wire drawing machine, the steel wire blank is deformed through the die hole of the wire drawing die, and the drawing times of the steel wire are controlled according to the drawing reduction rate of the steel wire. The reduction of cold working performance causes the drawing effect to deteriorate, and it needs to be heat treated again, so that the reciprocating cycle drawing operation can be realized;

Step 7: Carry out flaw detection and inspection on the drawn steel wire to ensure that the coating on the surface of the steel wire is complete, check the strength of the steel wire, exclude the products that fail the test for recycling, and carry out the spiral winding after coating treatment for the qualified products, and then Pack and store.

Preferably, the finished steel wire body is spirally wound on the outer side of the middle support column, and the inner side of the middle support column is provided with a shielded wire core.

Preferably, the plating layer is fixed on the surface of the inner steel wire by electroplating, and the material of the plating layer is brass.

Preferably, the positioning braided layer and the filling batt are connected through a sealing layer, and the outer surface of the sealing layer is provided with a hydrophobic coating.

Preferably, the temperature S mentioned in the step 2 is 200-400 ° C, and the V mentioned in the step 5 is 12/min.

Preferably, the wire drawing die mentioned in the step 6 is cooled by water cooling in the repeated drawing gap.

Preferably, the strength of the steel wire in the seventh step should meet the requirement of high strength of 1960-3135 MPa.

Compared with the prior art, the beneficial effects of the present invention are:

The invention can effectively improve the plasticity of the steel wire before deformation and the strength after the drawing operation by using the heat treatment process between the multi-step processing of the steel wire, thereby meeting the use requirements of the bulletproof vest, and by controlling the surface reduction in a single drawing process rate, which is convenient for the uniform deformation of the steel wire, and the quality of the finished product is higher.

Description of drawings

Fig. 1 is the partial structure schematic diagram of the wire assembly of the present invention;

Fig. 2 is the partial sectional structure schematic diagram of the steel wire assembly station of the present invention;

Fig. 3 is the partial sectional structure schematic diagram of the finished steel wire main body of the present invention;

Fig. 4 is the overall production process flow chart of the present invention;

Fig. 5 is a heat treatment process step diagram of the present invention;

FIG. 6 is a schematic diagram of the operation specification of the wire drawing process of the present invention.

In the figure: 1. Sealing layer; 2. Positioning braided layer; 3. Filling cotton wool; 4. Middle support column; 5. Main body of finished steel wire; 6. Inner steel wire; 7. Plating layer;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

Please refer to FIG. 1 to FIG. 6 , an embodiment provided by the present invention: a stainless steel wire used for making body armor batts, comprising a positioning braided layer 2 , the inner wall of the positioning braided layer 2 is provided with a sealing layer 1 , and the sealing layer 1 The inner side is filled with filling cotton 3, the inner side of the filling cotton 3 is installed with nine middle support columns 4, the outer side of the middle support column 4 is located inside the filling cotton 3, and four finished steel wire bodies 5 are fixedly installed, and the finished steel wire body 5 includes the inner side. The steel wire 6, the coating 7 and the heat-reducing coating 8, the surface of the inner steel wire 6 is located in the interior of the filling cotton 3 and is provided with a coating 7, and the material of the coating 7 is brass, which can improve the lubricating effect of the steel wire in the drawing process, and the coating 7 The outer side is provided with a heat-reducing coating 8 .

A kind of stainless steel wire for making body armor batting and production process thereof, is characterized in that: comprises the following steps:

Step 1: Select the wire rod, the raw material for steel wire production, and then remove the iron oxide scale on the outer surface of the wire rod. The chemical phosphorus removal method can prevent the iron oxide scale from damaging the mold and the surface of the steel wire during drawing;

Step 2: After the steel wire has undergone chemical phosphorus removal and surface coating pretreatment, the hydrogen in the steel base is removed by low-temperature heating. Specifically, a chain drying furnace is used for drying in the range of temperature S1, and the chain running speed is controlled. in V1;

Step 3: coating the surface of the steel wire after drying, mainly by applying lubricant for protection, wherein coating treatment is still required after the coating to improve the drawing efficiency of the steel wire;

Step 4: heat treatment for all three states of the steel wire, specifically, preliminary heat treatment of the steel wire raw material to eliminate internal stress; heat treatment for the semi-finished steel wire after drying to improve the plasticity of the steel wire; Heat treatment of finished products to suit delivery requirements and production specifications;

Step 5: The steel wire after heat treatment in the semi-finished product is subjected to copper plating operation on its surface, in order to create good lubricating conditions for drawing and select the electroplating treatment for the use conditions of the steel wire, and use electroplated brass to cover the surface of the steel wire;

Step 6: After the treatment is complete, the steel wire is pulled through the reel of the wire drawing machine, the steel wire blank is deformed through the die hole of the wire drawing die, and the drawing times of the steel wire are controlled according to the drawing reduction rate of the steel wire. The reduction of cold working performance causes the drawing effect to deteriorate, and it needs to be heat treated again, so that the reciprocating cycle drawing operation can be realized;

Step 7: Carry out flaw detection and inspection on the drawn steel wire to ensure that the coating on the surface of the steel wire is complete, check the strength of the steel wire, exclude the products that fail the test for recycling, and carry out the spiral winding after coating treatment for the qualified products, and then Pack and store.

Further, the finished steel wire body 5 is spirally wound on the outer side of the middle support column 4, and the inner side of the middle support column 4 is provided with a shielded wire core, which is convenient to improve the overall shielding effect.

Further, the plating layer 7 is fixed on the surface of the inner steel wire 6 by electroplating, and the material of the plating layer 7 is brass, which can improve the lubricating effect of the steel wire during the drawing process.

Further, the positioning braided layer 2 is connected with the filling batting 3 through the sealing layer 1, and the outer surface of the sealing layer 1 is provided with a hydrophobic coating to improve the waterproof capability of the entire surface.

Further, the temperature S1 mentioned in the step 2 is 200-400 ℃, and the V mentioned in the step 5 is 12/min.

Further, the wire drawing die mentioned in step 6 is cooled by water cooling in the repeated drawing gap.

Further, the strength of the steel wire in step seven should meet the requirements of high strength of 1960-3135 MPa.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (8)

1. A stainless steel wire for making body armor batting, comprising a positioning braid (2), characterized in that: the inner wall of location weaving layer (2) is provided with sealing layer (1), the inboard packing of sealing layer (1) has packing cotton fibre (3), nine middle part support columns (4) are installed to the inboard of packing cotton fibre (3), the inside fixed mounting that the outside of middle part support column (4) is located packing cotton fibre (3) has four finished steel wire main parts (5), finished steel wire main part (5) are including inboard steel wire (6), cladding material (7) and heat-reducing coating (8), the inside that the surface of inboard steel wire (6) is located packing cotton fibre (3) is provided with cladding material (7), the outside of cladding material (7) is provided with heat-reducing coating (8).

2. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 1, wherein: the method comprises the following steps:

the method comprises the following steps: selecting a raw material, namely a wire rod, for producing the steel wire, and further removing iron oxide scales on the outer surface of the wire rod, wherein the iron oxide scales can be prevented from damaging a die and the surface of the steel wire during drawing by adopting a chemical phosphorus removal mode;

step two: after chemical phosphorus removal and surface coating pretreatment, hydrogen in a steel base is removed in a low-temperature heating mode, specifically, a chain type drying furnace is adopted for drying operation within the temperature range of S1, and the running speed of a chain is controlled to be V1;

step three: after drying, carrying out coating treatment on the surface of the steel wire, and mainly protecting the steel wire by coating a lubricant, wherein the coating treatment is still required after plating, so that the drawing efficiency of the steel wire is improved;

step four: carrying out heat treatment on the steel wire in three states, specifically carrying out primary heat treatment on the steel wire raw material to eliminate internal stress; the semi-finished steel wire is dried and then is subjected to heat treatment again, so that the plasticity of the steel wire is improved; carrying out heat treatment on the finished product again after drawing forming, and adapting to delivery requirements and production specifications;

step five: copper plating operation is carried out on the surface of the steel wire after the semi-finished product is subjected to heat treatment, good lubricating conditions are created for drawing, electroplating treatment is selected according to the using conditions of the steel wire, and electroplating brass is adopted to cover the surface of the steel wire;

step six: after the treatment is completed, the steel wire is drawn by a winding drum of a wire drawing machine, a steel wire blank deforms through a die hole of a wire drawing die, the drawing frequency of the steel wire is controlled according to the drawing reduction rate of the steel wire, the cold working performance of the steel wire is reduced in the cold drawing process to cause the drawing effect to be poor, heat treatment needs to be carried out again, and then the reciprocating circular drawing operation can be realized;

step seven: and carrying out flaw detection treatment on the steel wire after drawing, ensuring the completeness of a coating on the surface of the steel wire, detecting the strength of the steel wire, removing products which are unqualified in test, recycling, carrying out coating treatment on qualified products, then carrying out spiral winding, and further carrying out packaging and warehousing.

3. The stainless steel wire for making body armor batting according to claim 1, wherein: the finished steel wire main body (5) is spirally wound on the outer side of the middle supporting column (4), and a shielding wire core is arranged on the inner side of the middle supporting column (4).

4. The stainless steel wire for making body armor batting according to claim 1, wherein: the plating layer (7) is fixed on the surface of the inner side steel wire (6) through electroplating, and the plating layer (7) is made of brass.

5. The stainless steel wire for making body armor batting according to claim 1, wherein: the positioning weaving layer (2) is connected with the filling cotton wool (3) through a sealing layer (1), and a hydrophobic coating is arranged on the outer surface of the sealing layer (1).

6. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: the temperature S1 mentioned in the second step is 200-400 ℃, and the V1 mentioned in the fifth step is 12/min.

7. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: and the wire-drawing die mentioned in the sixth step adopts water cooling to reduce the temperature in the repeated drawing clearance.

8. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: the strength of the steel wire in the seventh step meets the requirement of high strength of 1960-3135 MPa.

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