Metalworking lubricant

PATENT SPECIFICATION No. 282787 class " 23 C 6/04 lnt. Ci.: March 1968 (A 2868/68); Priority of the registration in the United States of America of 27, March 1964 (355418) zuerkarmt. Beginning of the patent duration: ! 5. November 1969. Available invention refers to MetalIbearbeitungs Schmiermiffel, in particular to not angreifeade Metallbearheitungs SchmiemaitteL with those a discoloration and/or a pollution of the metal surfaces is avoided. Metalworking procedures, like e.g. cuts, boring, driving, rollers, “pulling” extrusion, stamping machines and loops, require the use of Schmiemaitteln, yield the friction lower and the warmth abfügen. Such lubricants must also ensure that the surface is not discoloured and/or that on it no carbon-like deposits are formed, if the metals in the consequence are hot treated, as this is e.g. with starter treatments the case. With metals, which developed after that only kfirzlieh kontinuierliehen Gießteehnik were manufactured, a surface free of Vetfärbungen and impurities is required. When cold-rolling rolled strip steel for the prevention of its strength for lubricating Stahlund roller surface is used generally a lubricant, usually a mineral oil. In many cases the lubricant fulfills a double function, i.e. as lubricant and as KühlmitteI. The lubricant can be applied in each suitable way, as e.g. by deleting or Aufspähen on the metal and/or the rollers. At present it is proceeded in such a way that the lubricant is applied after the pickling procedure on the hot-rolled steel with the upcoiler. The hot-rolled steel is provided in this way for the following cold-rolling procedure with lubricant and thus also with a corrosion protection film. The metalworking lubricants used for a satisfying Reduziemng of the strength of strip steel by cold-rolling must forwards and during the treatment of rolling a good adhesion and @enzschmierwäxkung possess, they are the StahI cold-rolled when starting not to discolour or arrears on the surface not to leave, which disturbs wtttde with the further Bearbeitnng, and they should be free by inadmissible physiological characteristics. When cold-rolling strip steel or steel sheet already many connections all lubricants were used, most of them possessed however either an insufficient lubricating action or led to Oherflächenvernnreinigungen or damages. The appearance of the steel surface lately an important economic factor on denAnwendungsgebieten by steel so far almost exclusively lubricants on the basis by mineral oil used with such $chmiermitteln is however a discoloration of the surface of the resulting steel sheet inevitable. Further this mineral oil Schmiermnittel has insufficient detention characteristics, in order to be able to remain on that metal surface after applying on the hot-rolled steel or before the KaKwalzvorgang. Further a satisfying marginal lubrication at the rollers could be achieved only with mineral oil lubricants according to opinion of the specialists when cold-rolling. Attempts to avoid the N=.282787 inadequacies that up mineral oil developed lubricants - 2 - were so far without result. That so far from mineral oil is down the simmering petroleum destillate with a content of Polybutylen with high molecular weight, described in the USA patent specification No. 2.256.603, admitted an example one to best rolling lubricants on the basis. However it was not possible also with this product to obtain a steel surface free of discoloration it was found that in the Gegema to the past opinion a superior, the lubrication surfaces not attacking metalworking Sehmiermittel essentially from approximately 50 to approximately 98 thread - % liquid Polybutylen with a viscosity with 99oc from approximately 30 to approximately 1100 SSU, whose MoIGewicht lies in a range from approximately 300 to 900, 2 to 50 thread - % of a fat-like material and 0 to for instance Gew. - % of a Emulgatots exists. The SchmietTnitteI according to invention possesses the necessary adhesion and border lubricating action and leads to no Oberflächenverfätbung and - pollution after starting or pouring, which characteristics pray different Metallbearbeitungsoder exhibition processes are demanded. According to invention the Polybutylene suitable for the use ftir the purposes are commercial products, which can be manufactured by polymerization of a butane Butylen river, for example in accordance with the USA patent specifications Nr.2, 407.878 and Nr.2, 677.000-1-2. The Polybutylene has a relatively low molecular weight within the range of approximately 300 to approximately 900 and is essentially free from light polymers with viscosities with 99°C of less as 30 SSU and essentially free from heavy polymers with molecular weights over 900 with viscosities of more than 1100 SSU with 99oc. It was found that itself PoIybutylene with very low and very high molecular weight, as it brit for example in. Patentschri& NR, 964, 268 and/or iu the USA Pa 'entschrift No. 2, 899, 390 are descriptive, for the purposes according to invention are not suitable. The fettartlgen materials, which arrange Schmierund anti-frictional properties for the lubricant, can oil fatty acids with high molecular weight and Glyceride, derived from animal and vegetable and fats and Meer61en and - grease; Ester such fatty acids and GlycerideI oxidized oils, like Spermazeti and sulfonierte fatty acid and oils, like sulfoniertes Spermazetöl and sulfoniette fatty acids halogeniere materials, like exploriere of paraffin waxes: and naturally occurring and synthetic of waxes, like Spermazetwachs, Montanwachs and Bienenwach% its. The satisfied type of grease gea materials become votgezogen. In the following heispielsweisen metalworking lubrication memo egg compositions the Polybu lene is identified as follows: Polyhutylen A of flflssiges Polybutylen with a dumhschnittlichen molecular weight of approximately 300 and a viscosity with 99°C of approximately 40 SSU; Polybutylen B - liquid Polybutylen with a dumkschnittlichen Moleku] argewtcht of approximately 830 and a Viskc ität with 99oc of for instance ii00 SSU Polybutylen C - liquid Polybutylenmit a durchschniffdichen molecular weight of approximately 460 and a viscosity with 99oc of approximately 65 SSU, composition I " Polybut len A Polybutylen B hydrogenated tallow fatty acid 65% 2o% 15% composition 2 " Polybutylen C hydrogenated tallow fatty acid 96%, “/o composition 3” Polybutylen C 92% hydrogenated tallow fatty acid of 8% everyone of the above lubricants became on a usual Viergerüst Vie alzen steel Kaltwalzwerkmit a roller width of 1,371 m and an operating speed of 243, 83 to 274; 3 m per minute with soft a Stätkereduktion one causes of approximately 20, 3 to 5 mm. The lubricants were laid on on the hot-rolled strip steel from the pickling bath, while it was rolled up on the Wickelmaschhae to roles, the hot-rolled raw ones showed no corrosion or lubricant losses before cold-rolling. Then the lubricated roles were led by the cold-rolling mill without further Schmiemng and the rolled Bleehbänder with approximately 530 to 980°C angelasseno after starting showed the started sheet metals no surface discoloration or - errors. The rolling speeds are with using the conventional lubricants based on mineral oil obtained comparably. During the production of thin tinplate the before started, to the gewümchte Stäke, are reduced steel sheets cold-rolled those to the Durchfiihrnng of this reduction necessary mechanical energy continue to produce an important warmth in the volume. Therefore water emulsions of the rolling lubricant are used both for the Schmiemng and for the heat dissipation. The new metalworking Schrniermittel in accordance with the invention can for the formation of the desired water emulsion with a content from 5 to 60% lubricants, depending upon which kind of the Ernulsion and the kind of the rolling mill are used. Fast breaking emulsions can for single uses without help of emulsifying agents manufactured werdcm. For rotating works with an additive of up to, 5% emulsifying agent will receive for long use periods a suitable sturdy emulsion. Conventional emulsifying agents for öI in water Ernulsionen can be used for this purpose. Preferably emulsifying agents are Diäthanolamin and Diglykolamin. The following compositions describe lubricants, which form either fast breehende or sturdy oil in water emulsions. Composition 4: Spermazetölwaehs 10% blown Spermazetöl (“Sperm 1000 S”) 10% hydrogenated tallow fatty acid 15% tri ethanol amine 5% Polybutylen A 60% composition 5: Spermazetölwachs 10% blown Spermazetöl (“barrier 1000 S”) 10% hydrogenated tallow fatty acid 25% Polybutylen A 65% composition 6: Spermazetölwachs blown Spermazetöl (“barrier 1000 S”) hydrogenated tallow oil fatty acid Diglykolamin Polybutylen A composition 7: lO% io% 15% 5% 6o% Polybutylen B hydrogenated tallow oil fatty acid Diglykolamin 49% 49% i% oil in water emulsions with a content from 5 to 60% of the lubricants in accordance with the compositions 4 to 7 were used for the Schmiemng with the production of very thin tinplate from started steel sheet on a usual four-stand four-roller rolling mill at a run speed of 150 to 270 m/min. The speed of the rolling mill corresponded usually the speed applied with the rolling mill using conventional emulsions to mineral oil. The produced tinplate had an excellent shining appearance, against what herkömmliehes commercial tinplate was easily discoloured and grey and blunt in the appearance. The edindungsgemäße, not soiling rolling lubricant possesses an excellent ability to reduce the surface discolorations with rolling lubricant to mineral oil. This characteristic is described composition 8 by the following compositions to ": Polybutylen tl Polybutylen C hydrogenated tallow oil fatty acid mineral oil *) 20% 15% 5% composition 9: olybutylen C hydrogenate tallow oil fatty acid mineral oil *) 48% 4% 48% *) viscosity ii0 SSU with 87°C. The 9 Ilandstahl rolled with the compositions 8 and pointed one only mäßigeVerfärbtmg to starting, against what he was discoloured on use of the mineral oil Schrniermittels without Polybutylenestark. From there a not discolouring cold-roll Schmierrnittel is created by the invention, which can be used as such or in the form of oil in water emulsions or for the reduction of the discoloration characteristics of mineral oil rolling lubricants. Sawing metal is an often used measure for the production of metal forms and - pieces of the desired Grölte and form. The lubricant used for the necessary lubrication and cooling must metal to be removed easily in front be able and may to no discoloration of the Metalles or to the education of unwanted arrears lead. To the Ilildung komp! izietter forms and l ofile in the metal ore confining the Strangpreßteehnik is often used. Metallstrangpreßlinge, as e.g. from aluminum, are often started before their further use. Conventional metalworking lubricants are bad sawing lubricants, since the started piece must be again cut because of the metal discoloration. Thus due to the unnecessary waste and the additional jobs the Prodnktionskosten is importantly increased. It was found that the metalworking lubricants represent very effective lubricants for hack saw work in accordance with the invention. The lubricants are suitable in particular for metals, which must feast started, there it during the alarm treatment, without discolouring the metal or to leave on it arrears, perfectly to be removed. Une¢warteterwelse was also found that the lubricants according to invention contribute substantially to the extension of the life span of the saws and from there less place sharpnesses of the saws make possible. The use metalworking lubricants according to invention and of the not discolouring makes from there the production possible of Metallgegenständen in substantially cheaper way, since wastes are avoided and additional ore confining stages are switched off. Continuous metal casting processes require the use not reacting and arrears-free high temperature lubricants. It was found that the lubricants according to invention for the use during such continuous casting processes are suitable. This Schrniermittel with the necessary characteristics regarding thermal stability, Schrnierwirkung, absence of reactivity and of arrears formation, essentially exists of the mentioned liquid Polybutylenen and to satisfied fat materials. Examples of such lubricants are the compositions I to 8. - 6Nr.28278q the percentage figures used in the description are related to the weight.