阅读说明：本技术 一种耐磨钢丝绳的生产工艺 (Production process of wear-resistant steel wire rope ) 是由 陈健 陈企祥 朱小华 于 2020-04-14 设计创作，主要内容包括：本发明公开了一种耐磨钢丝绳的生产工艺,包括以下步骤：S1：用拉丝机对盘条进行拉拔得到同一规格的钢丝；对上述钢丝进行热镀锌；将对热镀锌后的钢丝经水箱再次进行30道次低压缩率拉拔；S2：根据所生产钢丝绳的粗度选择对应的中心钢丝变形校直器；S3：将校直后的钢丝进行表面喷丸处理；喷丸机所用的喷丸为铸钢丸；S4：将喷丸处理后的钢丝捻制成中心股,再将将碳纤维芯均匀设置在中心股钢丝芯的周围进行捻制；然后再将喷丸处理后的钢丝捻制成外层股；再将外层股的与中心股编捻形成钢丝绳；S5：将捻制后的钢丝绳通过变形校直器消除钢丝绳中的预应力并进行校直。本发明具有良好的耐磨性、抗挤压性；极大程度地改善了钢丝接触应力状态及提高了耐磨性。(The invention discloses a production process of a wear-resistant steel wire rope, which comprises the following steps: s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank; s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope; s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots; s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope; s5: and (3) eliminating the prestress in the steel wire rope through a deformation straightener and straightening the twisted steel wire rope. The invention has good wear resistance and extrusion resistance; greatly improves the contact stress state of the steel wire and improves the wear resistance.)

1. The production process of the wear-resistant steel wire rope is characterized by comprising the following steps of:

s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank;

s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope;

s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots, the shot blasting intensity is 0.35-0.38A, the shot blasting time is 21-29 minutes, and the surface coverage rate is 90-94%;

s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope;

s5: and (3) eliminating the prestress in the steel wire rope through a deformation straightener and straightening the twisted steel wire rope.

2. A process for producing a wear resistant steel cord according to claim 1, characterized in that: the steel wire is made of high-carbon steel wire or stainless steel wire, the tensile strength of the steel wire is more than or equal to 1910MPa, and the surface of the steel wire is coated with anti-rust oil for anti-corrosion treatment.

3. A process for producing a wear resistant steel cord according to claim 1, characterized in that: the curvature radius D of the upper and lower rollers of the deforming straightener in the step 5 is less than 4.5 times of the thickness of the steel wire rope, and the distance L3 between two adjacent rollers in the same row is less than 2 times of the lay length of the steel wire rope.

Technical Field

The invention relates to the technical field of steel wire ropes, in particular to a production process of a wear-resistant steel wire rope.

Background

With the development of national infrastructure, the upgrading and transformation of industries are accelerated, the application of the steel wire rope in engineering construction is more and more extensive, especially, the performance requirements of special equipment on the steel wire rope product are more and more strict, and under the background, the wear resistance of the steel wire rope is more important. The steel wire rope generally consists of a surface strand and a central strand, wherein the surface strand is uniformly wrapped and twisted on the outer side of the central strand. The steel wire rope can rub against a pulley, a winding drum and the like in the using process, so that the outer side surface of the steel wire rope face strand is easy to damage, and the service life of the steel wire rope is shortened. Although the strength and wear resistance of the steel wire rope can be enhanced by increasing the diameter of the steel wire rope, the change of the diameter of the steel wire rope can cause mismatching with original supporting equipment such as pulleys and drums, and the material cost can also be increased.

Disclosure of Invention

The invention aims to provide a production process of a wear-resistant steel wire rope aiming at the defects and shortcomings of the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the production process of the wear-resistant steel wire rope is characterized by comprising the following steps of:

s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank;

s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope;

s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots, the shot blasting intensity is 0.35-0.38A, the shot blasting time is 21-29 minutes, and the surface coverage rate is 90-94%;

s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope;

s5: and (3) eliminating the prestress in the steel wire rope through a deformation straightener and straightening the twisted steel wire rope.

Furthermore, the steel wire is made of high-carbon steel wire or stainless steel wire, the tensile strength of the steel wire is more than or equal to 1910MPa, and anti-rust oil is coated on the surface of the steel wire for anti-corrosion treatment.

Furthermore, the curvature radius D of the upper and lower rollers of the deforming straightener in the step 5 is less than 4.5 times of the thickness of the steel wire rope, and the distance L3 between two adjacent rollers in the same row is less than 2 times of the lay length of the steel wire rope.

The invention has the beneficial effects that:

the invention has good wear resistance, extrusion resistance and impact load resistance; the steel wire is subjected to shot blasting treatment, the surface texture structure of the steel wire is improved, the surface roughness is reduced, the surface performance is improved, crack sources generated by the surface defects of the steel wire are obviously reduced, the fatigue resistance is improved, the shot blasting treatment mainly can eliminate the surface residual tensile stress generated by steel wire drawing, a residual compressive stress layer with a certain thickness is generated on the surface of the steel wire, and the steel wire is protected by the compressive stress layer, so that the contact stress state of the steel wire is greatly improved, and the wear resistance and the fatigue resistance are improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Example 1

A production process of a wear-resistant steel wire rope comprises the following steps:

s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank; the steel wire is made of high-carbon steel wire or stainless steel wire, the tensile strength of the steel wire is more than or equal to 1910MPa, and the surface of the steel wire is coated with anti-rust oil for anti-corrosion treatment;

s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope;

s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots, the shot blasting intensity is 0.35A, the shot blasting time is 21 minutes, and the surface coverage rate is 90 percent;

s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope;

s5: the twisted steel wire rope is straightened by a deformation straightener to eliminate the prestress in the steel wire rope; the curvature radius D of the upper and lower rollers of the deformation straightener is less than 4.5 times of the thickness of the steel wire rope, and the distance L3 between two adjacent rollers in the same row is less than 2 times of the lay length of the steel wire rope.

The prepared steel wire rope has good wear resistance.

Example 2

A production process of a wear-resistant steel wire rope comprises the following steps:

s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank; the steel wire is made of high-carbon steel wire or stainless steel wire, the tensile strength of the steel wire is more than or equal to 1910MPa, and the surface of the steel wire is coated with anti-rust oil for anti-corrosion treatment;

s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope;

s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots, the shot blasting intensity is 0.38A, the shot blasting time is 29 minutes, and the surface coverage rate is 94 percent;

s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope;

s5: the twisted steel wire rope is straightened by a deformation straightener to eliminate the prestress in the steel wire rope; the curvature radius D of the upper and lower rollers of the deformation straightener is less than 4.5 times of the thickness of the steel wire rope, and the distance L3 between two adjacent rollers in the same row is less than 2 times of the lay length of the steel wire rope.

The prepared steel wire rope has good wear resistance.

Example 3

A production process of a wear-resistant steel wire rope comprises the following steps:

s1: drawing the wire rod by using a wire drawing machine to obtain steel wires with the same specification; hot galvanizing the steel wire; drawing the hot-galvanized steel wire again by 30 times with low compression ratio through a water tank; the steel wire is made of high-carbon steel wire or stainless steel wire, the tensile strength of the steel wire is more than or equal to 1910MPa, and the surface of the steel wire is coated with anti-rust oil for anti-corrosion treatment;

s2: selecting a corresponding central steel wire deformation straightener according to the thickness of the produced steel wire rope;

s3: carrying out surface shot blasting treatment on the straightened steel wire; the shot blasting used by the shot blasting machine is cast steel shots, the shot blasting intensity is 0.37A, the shot blasting time is 24 minutes, and the surface coverage rate is 92%;

s4: twisting the steel wire subjected to shot blasting into a central strand, and uniformly arranging carbon fiber cores around the central strand steel wire core for twisting; then twisting the steel wire after shot blasting into an outer layer strand; then the outer layer strands and the central strands are twisted to form a steel wire rope;

s5: the twisted steel wire rope is straightened by a deformation straightener to eliminate the prestress in the steel wire rope; the curvature radius D of the upper and lower rollers of the deformation straightener is less than 4.5 times of the thickness of the steel wire rope, and the distance L3 between two adjacent rollers in the same row is less than 2 times of the lay length of the steel wire rope.

The prepared steel wire rope has good wear resistance.

In conclusion, the invention greatly improves the contact stress state of the steel wire and improves the wear resistance and the fatigue resistance.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.