CN1021915C

CN1021915C - Wire cold-drawing lubricant and its preparation method

Info

Publication number: CN1021915C
Application number: CN 90102923
Authority: CN
Inventors: 陈翔鸿
Original assignee: YUANDONG WIRE-KNITTED CLOTH MILL
Current assignee: YUANDONG WIRE-KNITTED CLOTH MILL
Priority date: 1990-08-22
Filing date: 1990-08-22
Publication date: 1993-08-25
Anticipated expiration: 2005-08-22
Also published as: CN1059361A

Abstract

The present invention relates to a wire cold-drawing lubricant which comprises carriers and a lubricating body. The lubricant is dissolved in water for preparing an emulsion, borax and sodium stearate are used as carriers, soap is used as the lubricating body, a small amount of paraffin, rapeseed oil, castor oil and sodium hydroxide are added, and soap powder or dodecyl sodium sulfate is used as a dispersing agent. The lubricant is prepared according to the physical adsorption principle, and the lubricant has good absorptivity with wire surfaces, prevents dust generation and improves work environments. The lubricant also has the advantages of good lubricating performance and high wire drawing quality, and the lubricant is suitable for the cold-drawing of carbon wires and alloy wires.

Description

Wire cold-drawing lubricant and its preparation method

The present invention relates to the lubricant that adopts in a kind of wire cold-drawing technology.

In the prior art, be to adopt the lime coating in the wire cold-drawing technology, in steel wire carrying and Cold Drawing Process,, fly upward easily because of lime light weight and loose, operator's health is brought harm.

The blended lubricant that the object of the present invention is to provide a kind of wire cold-drawing to use to eliminate the dust that lubricant forms, improves Working environment, and improves the wire cold-drawing quality.

For achieving the above object, technical scheme of the present invention is as follows: this lubricant includes carrier and lubricant body.Be characterized in that carrier is dissolved in the water into emulsion with lubricant body, its composition is: by weight, carrier is borax (Na ₂B ₄O ₇10H ₂O), account for 4～20%; Sodium stearate (CH ₃(CH ₂) ₁₆COONa), account for 0.1～0.3%; Lubricant body is soap (RCOONa), accounts for 0.7～1.5%; Surplus is a water.The steel wire Jin Stains that will treat cold-drawn during use is fetched into then to dry in the baking oven and can carries out cold-drawn in this lubricant.

The preparation of this lubricant is the Applied Physics absorption principle, with borax (Na ₂B ₄O ₇10H ₂O) as carrier, utilize its interchain sodium ion contact, be adsorbed on Steel Wire Surface, prevent to generate dust.On the other hand, its hydrogen chain (OH ... O) can be with and carry a lubricant body, make steel wire immerse this lubricant after, more firmly attaching one deck lubricant at steel body surface, in Cold Drawing Process, bring into play lubrication.Moreover borax is a kind of good buffer reagent, and its aqueous ph value (25 ℃ time) about 9.2 is weakly alkaline, also can play neutralizing effect to the residual a part of acidic medium of steel body surface, so can play rust inhibition to a certain extent.

But borax also has certain defective as carrier, and it is easier to the weathering deliquescence at normal temperatures.In case behind the deliquescence, the lubricant body band is carried and very havoc effect is played in absorption, so moisture preventive measure must be arranged.The present invention selects sodium stearate (CH for use ₃(CH ₂) ₁₆COONa), it is a kind of than the excellent waterproof agent, under hot, it is easy to after the drying, one deck thin layer is arranged on Steel Wire Surface along with the borax carrier is adsorbed on Steel Wire Surface, stoped moisture content intrusion in the outside air, thereby guaranteed that steel wire in the certain period, can guarantee relatively dry.

The lubricant body of this lubricant adopts soap (RCOONa).Contain a large amount of greases and soda soap in the soap, the good lubrication effect is all arranged.

This lubricant can add a spot of paraffin wax, rape oil, Viscotrol C and sodium hydroxide, the existing lubrication of these materials, has hydrophobicity performance again, forming emulsion (under the hot condition) under soda soap, sodium hydroxide and the grease, so than being easier to along with borax is brought Steel Wire Surface into.

In order to make steel wire drawing rear surface satiny, this lubricant can add the paucidisperse agent, promptly adds 1.5～2.5% soap powder or other anion active agent, as sodium lauryl sulphate.

One embodiment of the present of invention are: be used for the cold-drawn of carbon steel wire, 10 meters/minute～15 meters/minute of drawing speeies, rate of compression is 65%～75%, the prescription of its lubricant is by weight: borax 4～10%, sodium stearate 0.1～0.3%, soap 0.7～1.5%, paraffin wax 0.06～0.14%, rape oil 0.1～0.15%, Viscotrol C 0.02～0.1%, sodium hydroxide trace (sodium hydroxide is 8～10 grams when being 50 milliliters of rape oil and Viscotrol C), soap powder 2%, surplus is a water.

Another embodiment is: be used for the cold-drawn of steel alloy (as stainless steel), the prescription of its lubricant is by weight: borax 15～20%, other composition is identical with last embodiment.

Should note when using this lubricant: can not have acidic substance directly to enter this lubricant, not so can influence its lubricant effect.So generally through the acid etching steel wire need be in alkali lye and after this lubricant of being allowed for access.In addition, the dissolving of borax changes with temperature, as following table:

Temperature ℃ 15 30 40 50 60 70 80 90 100

Saturation concentration,

4.00 7.30 11.38 18.10 31.56 36.94 44.30 53.78 65.65

Weight %

Concentration,

42 79 128 221 460 585 794 1160 1907

Grams per liter

So general requirement is being used this lubricant more than 70 ℃.

The compound method of this lubricant is as follows: in a container, add the water of requirement, the borax of heating for dissolving regulation proportioning, treat its dissolving after, add the sodium stearate of regulation proportioning again, make its dissolving; In another container, the paraffin wax of regulation proportioning, rape oil, Viscotrol C are mixed and heating for dissolving, 30% aqueous sodium hydroxide solution that the adding that blows slowly then prepares in advance is to the sodium hydrate content of regulation proportioning, stir while adding, until becoming pasty state, pour into then to have dissolved good soap solution; With the aqueous solution in two containers mixed after, add again to see and decide the dispersion agent of proportioning, promptly soap powder or sodium lauryl sulphate are mixed into emulsion.

Lubricant of the present invention compared with prior art advantage is as follows: because this lubricant employing borax is carrier, eliminate dust, improve working environment; Greasy property is good, the drawn steel wire smooth surface, and drawing speed can be bigger, and compression ratio also can be up to 75%. This lubricant can be used for the cold-drawn of carbon steel wire and alloy-steel wire.

Claims

1, the lubricant used of a kind of wire cold-drawing includes carrier and lubricant body, it is characterized in that its composition is:

By weight

Carrier: borax (Na ₂B ₄O ₇10H ₂O), 4～20%;

Sodium stearate (CH ₃(CH ₂) ₁₆COONa), 0.1～0.3%;

Lubricant body: soap (RCOONa), 0.7～1.5%;

Paraffin wax: 0.06～0.14%; Rape oil 0.1～0.15%; Viscotrol C: 0.02～0.1%;

The sodium hydroxide trace promptly adds 8～10 gram sodium hydroxide when 50 milliliters of rape oil and Viscotrol C;

Dispersion agent: soap powder or sodium lauryl sulphate, 1.5～2.5%;

Water: surplus.

2, lubricant according to claim 1 is characterized in that being used for the lubricant that carbon steel wire draws, and borax content is 4～10%.

3, lubricant according to claim 1 is characterized in that being used for alloy-steel wire and draws the lubricant of dialling, and borax content is 15～20%.

4, a kind of compound method according to the described lubricant of claim 1, it is characterized in that in a container, adding the water of requirement, the borax of heating fusion regulation proportioning, after treating its dissolving, the sodium stearate that adds the regulation proportioning again, make its dissolving, in another container, the paraffin wax of regulation proportioning, rape oil, Viscotrol C are mixed and heating for dissolving, 30% aqueous sodium hydroxide solution that the adding that blows slowly then prepares in advance is to the sodium hydrate content of regulation proportioning, stir while adding, until becoming pasty state, add then and dissolved good soap solution; After the aqueous solution gentleness in two containers, add the dispersion agent of regulation proportioning again, promptly soap powder or sodium lauryl sulphate are blended into emulsion.