Medium carbon steel wire rope and production process thereof

A production process and technology for steel wire ropes, applied in the field of steel wire ropes, can solve the problems of poor corrosion resistance of carbon steel wire ropes, and achieve the effects of high toughness, improving the working environment and increasing the total compression ratio of drawing.

Inactive Publication Date: 2014-01-29
WUXI UNIVERSAL STEEL ROPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the medium carbon steel wire rope has poor anticorrosion ability and cannot meet the needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1. Surface treatment: Place the ￠5.5mm raw material wire on the pay-off rack, remove the hot-rolled oxide scale by mechanical descaling equipment, then enter the cleaning tank for cleaning, the pickling tank for pickling, and then enter the cleaning tank for cooling and heating Rinse with water, then enter the boron coating equipment for boron coating treatment, and finally enter the drying equipment for drying to get pre-treated wire;

[0037] Step 2: Drawing: Put the pre-processed wire from step 1 on a drawing machine for multiple passes to draw the semi-finished wire, and the spool takes up the wire;

[0038] Step 3. Normalizing heat treatment and galvanizing: Place the semi-finished wire material obtained in Step 2 on the pay-off rack and heat it in a four-stage heat treatment furnace. The heating temperature is 800℃, 820℃, 850℃, 880℃, and then air cooling , Enter the water tank for water cooling, enter the pickling tank for pickling, then enter the water tank for c...

Embodiment 2

[0045] Step 1. Surface treatment: Place the ￠5.5mm raw material wire on the pay-off rack, remove the hot-rolled oxide scale by mechanical descaling equipment, then enter the cleaning tank for cleaning, the pickling tank for pickling, and then enter the cleaning tank for cooling and heating Rinse with water, then enter the boron coating equipment for boron coating treatment, and finally enter the drying equipment for drying to get pre-treated wire;

[0046] Step 2: Drawing: Put the pre-processed wire from step 1 on a drawing machine for multiple passes to draw the semi-finished wire, and the spool takes up the wire;

[0047] Step 3. Normalizing heat treatment and galvanizing: Place the semi-finished wire rod from step 2 on the pay-off rack and heat it in a four-stage heat treatment furnace. The heating temperature: 840℃, 860℃, 880℃, 900℃, and then air cooling , Enter the water tank for water cooling, enter the pickling tank for pickling, then enter the water tank for cold and hot wa...

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Abstract

The invention relates to a medium carbon steel wire rope and a production process thereof. The medium carbon steel wire rope is characterized in that medium carbon steel (SWRH32A-52A steel or 25#-55# steel) is adopted to sever as a production raw material of the steel wire rope, a phosphating film is coated on the surface of a steel wire of the steel wire rope, and the steel wire rope is made by surface processing, pulling and drawing, normalizing heat treatment, galvanizing, phosphating, pulling and drawing, and stranding and rope combining. The medium carbon steel wire rope and the production process thereof are few in production procedures, low in energy consumption, die consumption and wire breakage rate, and high in labor productivity.

Description

Technical field [0001] The invention relates to a steel wire rope, in particular to a medium carbon steel wire rope and a production process thereof. Background technique [0002] Because high carbon steel has high strength, good toughness, and a fine and uniform heat treatment structure, it can meet the needs of drawing, twisting and performance uniformity, so traditional steel rope manufacturing uses it as a raw material. The processing route is roughly as follows: raw wire rod to remove hot-rolled oxide scale-dry drawing-(intermediate heat treatment) normalizing-dry drawing (compression rate of about 92%)-(intermediate heat treatment) lead bath Isothermal decomposition-galvanized-wet drawing (compression rate is about 97%)-twisted strand rope. However, due to its large work hardening coefficient (that is, after the compression rate exceeds 85% during the processing, the strength rises sharply and the toughness deteriorates), so in the processing process, it needs to undergo m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/06D07B7/14
Inventor 芮小保
Owner WUXI UNIVERSAL STEEL ROPE
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