JPWO2013008802A1 - Lubricant for belt-shaped dry drawing and method for producing the same - Google Patents

Abstract

Similar to conventional powder or granular dry wire drawing lubricants, it can be used under severe wire drawing conditions such as high temperature, high pressure, and high speed, as well as a wide range of wires from small to large diameters. It can handle a wide range of line speeds from low speed to high speed, and is not limited to the machined shape, but it has lubricity, followability, spreadability, adhesion, heat resistance, and workability. We provide a belt-type dry wire lubricant that has excellent functionality such as workability, safety, durability, and productivity, and is innovative in consideration of the work environment and the global environment. The belt-shaped dry wire drawing lubricant is composed of a film containing 10 to 90% by weight of a saturated fatty acid metal salt and 10 to 90% by weight of a thermoplastic resin.

Description

  The present invention is used to prevent a seizure due to direct contact between the base material and the die and maintain a stable processing state when a base material such as a wire or a rod is drawn and diameter-reduced and drawn. The present invention relates to a belt-like dry wire drawing lubricant.

  Wire drawing is performed by drawing a large-diameter wire rod or rod made of metal such as steel or non-ferrous metal from a hole in a mold steel like a die and reducing it to a thin wire rod or rod for plastic deformation. At the time of processing, dry-type wire drawing lubricants are widely used. This dry wire drawing lubricant is used to prevent the base material and the die from being in direct contact and seizure, to be slippery and to maintain a stable processed state.

  For example, Patent Document 1 discloses a boric acid-free dry wire drawing lubricant containing a metal salt of a saturated fatty acid, a boron-free water-soluble inorganic condensation compound and / or a condensation precursor compound thereof. Has been. Such a dry drawing lubricant composed of a metal salt of a saturated fatty acid, an inorganic substance, and an additive has a powdery or granular shape. This powder or granular dry wire drawing lubricant can be used under severe wire drawing conditions such as high temperature, high pressure, and high speed, and the wire diameter can be reduced from a small diameter to a large diameter. It is widely used because it can handle diameters and linear speeds from low to high.

  As shown in FIG. 4, the powder or granular dry wire drawing lubricant is put in a large amount into the die box 3 at the time of wire drawing, and a part thereof is drawn into the die 4 together with the wire 2. Thus, the lubricating coating 6 is formed on the wire 2 to prevent direct contact between the wire 2 and the die 4. About 20% of the dry wire drawing lubricant 10 put into the die box 3 is drawn into the die 4 and consumed together with the wire 2, but the rest of the dry wire drawing lubricant 10 is partially processed by processing heat. Since it is cracked and becomes a carbide, the lubricating ability is reduced, and wear powder such as the wire 2 or the die 4 is mixed, so that it cannot be used to ensure the quality of wire drawing. Therefore, the entire remaining amount is unavoidably discarded.

  The recent social situation is shifting to a society that takes into account the global environment, such as the reuse of resources, and such mass consumption and mass destruction are becoming a problem. In addition, since it is in the form of powder or granules, there are problems that the working environment is deteriorated due to dust during use, the health of workers is deteriorated, and environmental pollution is caused. Furthermore, it is necessary to properly use and adjust the particle shape of the dry drawing lubricant depending on the processing shape, which is inefficient on the operator side and the producer side. In view of these problems, there has been a demand for an innovative dry-drawing lubricant that is not in powder form, while improving work environment while maintaining workability and productivity and considering the global environment.

JP 2010-1111767 A

  The present invention has been made to solve the above-mentioned problems, and is used under severe wire drawing conditions such as high temperature, high pressure, and high speed in the same manner as conventional powder or granular dry wire drawing lubricants. In addition to being able to handle a wide range of wire diameters from small diameters to large diameters and a wide range of wire speeds from low speeds to high speeds, lubrication is not limited to the processing shape. , Excellent trackability, spreadability, adhesion, heat resistance, workability, workability, safety, durability, productivity, etc. It is an object of the present invention to provide a dry wire drawing lubricant, a method for producing the same, and a wire drawing method using the same.

  The belt-shaped dry wire drawing lubricant according to claim 1, which has been made to achieve the above object, comprises 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 10% of a thermoplastic resin. It is characterized by comprising a film containing 90% by weight.

  The belt-shaped dry wire drawing lubricant according to claim 2 is the lubricant according to claim 1, wherein the saturated fatty acid is butyric acid, caproic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid. It is characterized by being acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, serotic acid, montanic acid, and / or melicic acid.

  The belt-shaped dry wire drawing lubricant according to claim 3 is the lubricant according to claim 1 or 2, wherein the thermoplastic resin is polyethylene, polypropylene, polystyrene, acrylonitrile-styrene copolymer resin, ethylene Vinyl acetate copolymer resin, acrylonitrile / butadiene / styrene copolymer resin, methacrylic resin, vinyl chloride, polyamide, polyacetal, polyethylene terephthalate, polybutylene terephthalate, methyl pentene, polycarbonate, polyphenylene sulfide, polyether ether ketone, polytetrafluoroethylene, It is characterized by being a polyetherimide, polyarylate, polysulfone, polyethersulfone, and / or polyamideimide.

  The belt-shaped dry wire drawing lubricant according to claim 4 is the lubricant according to any one of claims 1 to 3, wherein the metal salt is a lithium salt, a sodium salt, a potassium salt, a calcium salt, or magnesium. It is a salt, an aluminum salt, a zinc salt, a barium salt, and / or a composite metal salt thereof.

  The belt-shaped dry wire drawing lubricant according to claim 5 is the lubricant according to any one of claims 1 to 4, and is boric acid, borate, phosphate, sulfate, carbonate, nitrate. , Slaked lime, titanium oxide, talc, mica, graphite, molybdenum disulfide, layered double hydroxide, and / or sulfur.

  The method for producing a strip-type dry wire drawing lubricant according to claim 6, wherein 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin are heat-kneaded to form a film. However, it is characterized by being formed in a strip shape.

  In the wire drawing method according to claim 7, the base material to be drawn is covered with the belt-like dry wire drawing lubricant according to claim 1, and the base material is passed through the hole of the die. The diameter is reduced by drawing and the wire is drawn.

  The wire drawing method according to claim 8 is the wire drawing method according to claim 7, wherein the base material is wound or sandwiched with the belt-shaped dry wire drawing lubricant to cover the base material. To do.

  The wire drawing method according to claim 9 is described in any one of claims 7 to 8, wherein the belt-shaped dry wire drawing lubricant is guided by a roller and wound around the base material, It is characterized by covering.

  A wire drawing method according to a tenth aspect is the method according to any one of the seventh to ninth aspects, wherein the base material is made of metal.

  The belt-like dry wire drawing lubricant of the present invention is not limited to the processing shape, and is drawn into a die together with the base material to be processed such as wire drawing, and forms a lubricant film on the base material. It is possible to prevent seizure due to direct contact between the die and the die and maintain a stable processing state. In addition, it can be used under severe conditions such as high temperature, high pressure, and high speed in wire drawing conditions, and it can be reduced to a wide range of wire diameters from small diameter to large diameter, and wide from low speed to high speed. It can also cope with linear speed.

  Compared to conventional powdery or granular dry wire drawing lubricants that are unproductive and consume a large amount of waste as much as 80% without being used up. This belt-shaped dry wire drawing lubricant is in the shape of a strip, so it can be used in a small amount while maintaining low lubrication, followability, spreadability, adhesion, and heat resistance without consuming large quantities and discarding. It can be used up while exhibiting excellent functional effects such as performance, workability and durability. In addition, when several steps of wire diameter reduction are usually required for the wire rod as a base material, a dry wire drawing lubricant is required for each step. Therefore, it is possible to form a sufficient lubricating film on the surface of the wire and to maintain the effect by simply using it, or to improve production efficiency and cost effectiveness.

  The belt-like dry wire drawing lubricant according to the present invention can be used safely without causing deterioration of the work environment, health damage to workers, or environmental pollution due to dust generated by powder or granules. It is environmentally friendly.

  According to the manufacturing method of the belt-like dry wire drawing lubricant of the present invention, excellent functional effects such as lubricity, followability, spreadability, adhesion, heat resistance, workability, and durability can be exhibited. A film-like strip-shaped dry wire drawing lubricant can be produced easily and efficiently.

  According to the wire drawing method of the present invention, it is possible to reliably plastically deform the workpiece base material to be drawn by reducing the diameter by using the belt-like dry wire drawing lubricant, and again, the belt-like dry wire drawing lubricant. Even if it does not attach | subject, it can reduce a diameter repeatedly and is efficient.

It is a perspective view which shows the outline | summary of the use condition of the strip | belt-shaped dry drawing lubricant to which this invention is applied. It is a perspective view which shows the middle of winding the strip | belt-shaped dry wire drawing lubricant around a wire with the wire drawing method to which this invention is applied. It is a perspective view which shows the middle of winding while pinching | interposing a wire with the strip | belt-shaped dry wire drawing lubricant by the wire drawing method to which this invention is applied. It is a perspective view which shows the outline | summary of the use condition of the dry-type wire drawing lubricant which does not apply this invention.

  1 is a belt-like dry wire drawing lubricant, 2 is a wire rod, 3 is a die box, 4 is a die, 5 is a die hole, 6 is a lubricating coating, 7a, 7b and 7c are a pair of rollers, and 10 is a dry wire drawing lubrication. It is an agent.

  Hereinafter, although the form for implementing this invention is demonstrated in detail, the scope of the present invention is not limited to these forms.

  The belt-shaped dry wire drawing lubricant of the present invention comprises a film in which 10 to 90% by weight of a saturated fatty acid metal salt and 10 to 90% by weight of a thermoplastic resin are uniformly kneaded and formed into a band shape. , Formed.

  The saturated fatty acid that constitutes the metal salt of the saturated fatty acid is a linear, branched, or cyclic saturated fatty acid having 3 to 29 carbon atoms. Specifically, butyric acid, caproic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, serotic acid, montanic acid, melicic acid Is mentioned. Of these, myristic acid, palmitic acid, and stearic acid, which are easily available industrially, are preferable.

  Examples of the metal salt constituting the metal salt of the saturated fatty acid include lithium salt, sodium salt, potassium salt, calcium salt, magnesium salt, aluminum salt, zinc salt, barium salt, and / or a composite metal salt thereof. . Of these, lithium salts, sodium salts, potassium salts, calcium salts, magnesium salts, aluminum salts, and barium salts are preferable. The sodium salt is water-soluble and can be suitably used under the processing conditions of the base material for plating that requires a step of washing with water in the surface treatment of the base material. On the other hand, the calcium salt is water-insoluble and can be suitably used in the processing conditions of the base material that does not require a plating treatment or a water washing step. Also, from the viewpoint of improving the heat resistance of the belt-like dry wire drawing lubricant, lithium salt or potassium salt is preferable, and when attached to a die, the adhesion to the wire that facilitates the formation of a uniform film on the surface of the wire is improved. From the viewpoint, a magnesium salt or an aluminum salt is preferable. Furthermore, the barium salt can be used together with the calcium salt to improve the heat resistance against the calcium salt.

  These metal salts of saturated fatty acids may be used alone or in combination of two or more. The metal salt of saturated fatty acid is contained in the belt-shaped dry wire drawing lubricant in an amount of 10 to 90% by weight, preferably 50% by weight, and more preferably 30% by weight. When the content of the saturated fatty acid metal salt is less than 10% by weight or more than 90% by weight, effects such as heat resistance and lubricity may be deteriorated.

  Examples of the thermoplastic resin include polyethylene, polypropylene, polystyrene, acrylonitrile / styrene copolymer resin, acrylonitrile / butadiene / styrene copolymer resin, ethylene / vinyl acetate copolymer resin, methacrylic resin, vinyl chloride, polyamide, polyacetal, polyethylene terephthalate. , Polybutylene terephthalate, methylpentene, polycarbonate, polyphenylene sulfide, polyetheretherketone, polytetrafluoroethylene, polyetherimide, polyarylate, polysulfone, polyethersulfone, and polyamideimide. These thermoplastic resins may be used alone or in combination of two or more. Of these, polyethersulfone having excellent thermal stability is preferable, and a belt-like dry wire drawing lubricant having excellent heat resistance can be provided.

  The thermoplastic resin is contained in the belt-shaped dry wire drawing lubricant in an amount of 10 to 90% by weight, preferably 30% by weight, and more preferably 50% by weight. When the content of the thermoplastic resin is less than 10% by weight or more than 90% by weight, effects such as heat resistance, lubricity, and difficulty in forming a strip may be lowered.

  The belt-shaped dry wire drawing lubricant of the present invention may contain an inorganic substance and / or an additive, if necessary, in addition to the saturated fatty acid metal salt and the thermoplastic resin. Content of an inorganic substance and / or an additive is a range which does not impair the effect of the strip | belt-shaped dry wire drawing lubricant, Comprising: It is 10 to 40 weight% in the strip | belt-shaped dry wire drawing lubricant.

  Examples of the inorganic substance include boric acid, borate, phosphate, sulfate, carbonate, nitrate, slaked lime, titanium oxide, talc, mica, graphite, molybdenum disulfide, layered double hydroxide, and sulfur. . These inorganic substances may be used alone or in combination of two or more.

  These inorganic substances can improve the functionality of the belt-shaped dry wire drawing lubricant in combination with a metal salt of a saturated fatty acid or a thermoplastic resin contained as an essential component. As a preferred combination of a saturated fatty acid metal salt and an inorganic substance, for example, when the saturated fatty acid metal salt is a sodium salt of a saturated fatty acid, it preferably contains boric acid which is a water-soluble inorganic substance. When it is a calcium salt of a saturated fatty acid, it preferably contains slaked lime which is a water-insoluble inorganic substance.

  Examples of additives include boric acid, borate, phosphate, sulfate, carbonate, nitrate, slaked lime, titanium oxide, talc, mica, graphite, molybdenum disulfide, layered double hydroxide, and sulfur. It is done. These additives may be used alone or in combination of two or more.

  The belt-shaped dry wire drawing lubricant of the present invention is produced as follows.

  Heat-kneading 10 to 90 parts by weight of a saturated fatty acid metal salt obtained by reacting a compound containing a metal constituting a saturated fatty acid metal salt with a saturated fatty acid heated and melted, and 10 to 90 parts by weight of a thermoplastic resin Mix and heat knead using a machine. For solid wire drawing by pressing the solid obtained after uniform kneading using a roll press or heating press to form a sheet, film, or film and passing it through a sheet cutter to form a strip Get the lubricant.

  The metal salt of the saturated fatty acid may be previously mixed with an inorganic substance or an additive as necessary. The metal salt of saturated fatty acid can be used in the form of powder, granule, lump, or solid.

  The obtained belt-like dry wire drawing lubricant is not particularly limited in its width, thickness, and length, and is appropriately selected depending on the base material and wire drawing conditions. The sheet of several tens of cm to 1 m may be wound into a sheet roll shape and used as it is as a belt shape, or may be used as a belt shape after being appropriately cut and wound.

  The width of the belt-shaped dry wire drawing lubricant is appropriately adjusted according to the shape, diameter, length, and material of the base material in the wire drawing process, and is not particularly limited, but is a width capable of forming a lubricant film on the surface of the base material. However, it is preferable that the diameter is comparable to the diameter of the base material.

  The thickness of the belt-like dry wire drawing lubricant is appropriately adjusted according to the shape, diameter, length, and material of the base material in wire drawing, and is not particularly limited, but the optimum thickness varies depending on the die half angle. . If the film thickness of the belt-shaped dry wire drawing lubricant is too thick, it may not be drawn into the die together with the base material.

  As shown in FIG. 1, the obtained strip-shaped dry wire drawing lubricant is, for example, a wire 2 that is a metal workpiece base material when wire drawing is performed using a die 4 in a die box 3. At the same time, it is drawn into the die 4 and used. The wire drawing method is, for example, as follows. The belt-shaped dry wire drawing lubricant 1 is installed together with the wire 2 in the die hole 5 and is drawn into the die 4 while being wound around the wire 2 at the same time as the wire 2 is drawn. By pulling out from the die 4, the wire 2 becomes a desired wire 2 that has been plastically deformed and drawn, and the belt-like dry wire-drawing lubricant 1 drawn into the die 4 together with the wire 2 is crimped and heat-bonded to the wire 2. Lubricating film 6 is formed on the surface.

  The belt-shaped dry wire drawing lubricant 1 may be used by being previously spirally wound around the wire 2 or may be used by sandwiching the wire 2 vertically or horizontally. Therefore, the shape of the belt-shaped dry wire drawing lubricant 1 is not limited to being flat or smooth as long as it is a belt-like film, and may have swell, twist, twist, and warp.

  Further, when the belt-shaped dry wire drawing lubricant 1 is wound around the wire 2, a winding roller may be used. For example, as shown in FIG. 2, the belt-like dry wire drawing lubricant 1 is placed along the wire 2 and sandwiched between a pair of left and right rollers 7a, and the belt-like dry wire drawing lubricant 1 is twisted to form a pair of upper and lower pairs. The belt-like dry wire drawing lubricant 1 may be sandwiched and rotated by the roller 7b. In this case, the wire 2 may be wound and covered so as to be wrapped with the belt-shaped dry wire drawing lubricant 1 and may be drawn into the die hole 5 of the die 4 while maintaining the state. Each of the pair of left and right rollers 7a and the pair of upper and lower rollers 7b may automatically rotate in response to being pulled out from the die hole 5, and rotate by itself by the power of a drive source (not shown). It may be.

  When winding the slightly wider belt-shaped dry wire drawing lubricant 1 around the wire 2, as shown in FIG. 3, the wire 2 and the belt-like dry wire drawing lubricant 1 covered so as to wrap along the shape, By sandwiching between a pair of left and right rollers 7c recessed in the middle of the body, the wire 2 is wrapped with the belt-like dry wire drawing lubricant 1 and wound, and kept in this state and drawn into the die hole 5 of the die 4. Also good.

  Drawing conditions are not particularly limited, and can be used under the same conditions as conventional dry drawing lubricants.

  The base material is not particularly limited as long as it is made of a metal such as steel, and specific examples include a wire, a wire, a tube, a rod, and a rod.

  The base material may be pretreated as necessary. Specific examples of the pretreatment include surface treatments such as acid treatment, bending, shot blasting, and air blasting.

  Examples of the present invention will be described in detail below, but the scope of the present invention is not limited to these examples.

  Example 1 of a prototype of a strip-shaped dry wire drawing lubricant to which the present invention is applied Example 1, a powdery dry wire drawing lubricant that is not applicable to the present invention is Comparative Example 1, and a belt shape that is not applicable to the present invention Polyethylene is shown in Comparative Example 2, respectively.

(Example 1)
In a reaction vessel equipped with a stirrer, 75 parts by weight of industrial stearic acid was heated and melted while stirring, and then 25 parts by weight of slaked lime was added. Heating and stirring were continued until the mixture became viscous. When the mixture became hard, heating and stirring were stopped, taken out, cooled, and pulverized with a 500 mesh sieve so that the passing rate was about 60% to obtain a calcium-based lubricant which is a metal salt of a saturated fatty acid. 70 parts by weight of the obtained saturated fatty acid metal salt and 20 parts by weight of polyethylene as a thermoplastic resin were heat-kneaded at 180 ° C. using a heat kneader (trade name: Labo Plast Mill). After forming the obtained solid into a sheet shape so as to have a film thickness of 0.5 mm or less with a heating press, the sheet is cut into a band shape having a width of 8 mm using a sheet cutter, and a belt-shaped dry wire drawing lubricant is obtained. Obtained.

(Comparative Example 1)
In a reaction vessel equipped with a stirrer, 75 parts by weight of industrial stearic acid was heated and melted while stirring, and then 25 parts by weight of slaked lime was added. Heating and stirring were continued until the mixture became viscous. When the mixture became hard, heating and stirring were stopped, taken out, cooled, and pulverized with a 500 mesh sieve so that the passing rate was about 60% to obtain a calcium-based dry wire drawing lubricant.

(Comparative Example 2)
Polyethylene was heat-kneaded at 180 ° C. using a heat kneader (trade name: Laboplast Mill). The obtained solid was formed into a sheet shape so as to have a film thickness of 0.5 mm or less with a heating press, and then cut into a belt shape to obtain a belt-like polyethylene.

(Evaluation of wire drawing performance)
As the wire lubricant, the belt-shaped dry wire drawing lubricant of Example 1, the calcium-based dry wire drawing lubricant of Comparative Example 1, and the belt-like polyethylene of Comparative Example 2 were each used for wire drawing by a wire drawing machine. Performance evaluation was performed.

  For the wire rod (carbon steel 72A material) that is the base material, the oxidized scale on the surface of the wire to be processed is pickled and removed with a 12 wt% aqueous hydrochloric acid solution, and then washed with water several times to neutralize the acid treatment and prevent rust. And immersed in a 1% by weight borax aqueous solution heated to about 80 ° C. The processed wire was pulled up from the borax aqueous solution and dried to form a borax film on the processed wire, and pre-processed. Subsequently, 1 g of the belt-shaped dry wire drawing lubricant obtained in Example 1 was introduced into the die box, the linear velocity was 40 m / min, and the wire diameter was reduced: 2.8 mmφ → 2.5 mmφ → 2.25 mmφ. → In accordance with the conditions of three stages of 2.00 mmφ and a drawing dose: 2 kg, the pretreated wire was drawn. In the three-stage wire drawing, the lubricant was used only for one pass, and the lubricant was not used for the second and third passes.

  Similarly, instead of the lubricant, 300 g of the calcium-based dry wire drawing lubricant of Comparative Example 1 and 1 g of the strip-like polyethylene of Comparative Example 2 were used to draw the processed wire.

  Table 1 shows the result of visual observation of the surface of the wire drawn by using each lubricant.

  As is apparent from Table 1, in any wire diameter, the belt-shaped dry wire drawing lubricant of Example 1 is spread on the surface of the wire after wire drawing in a uniform film shape. On the other hand, the powdery calcium-based dry wire drawing lubricant, which is a conventional product of Comparative Example 1, partially had a metallic luster due to the film breakage of the dry wire drawing lubricant after the second pass. In addition, the belt-like polyethylene which is the thermoplastic resin alone of Comparative Example 2 did not form a uniform lubricant film on the wire from the first pass, and had a metallic luster. The second pass was canceled.

  The drawn wire is washed with a wire drawing wire cleaning agent (Kyoeisha Chemical Co., Ltd .; Light Clean A-1), and the amount of each lubricant attached is calculated from the weight difference before and after washing. The observation was magnified 400 times with a laser microscope. The results are shown in Table 2.

  As is apparent from Table 2, when the belt-like dry wire drawing lubricant of Example 1 was used, the amount of the belt-like dry wire drawing lubricant tended to be large at any wire diameter. It can be seen that the area ratio (flat rate) of the flat portion generated by direct contact with the sample tends to be lower than that of the comparative example. That is, it was confirmed that the wire drawing state was good. On the other hand, in Comparative Example 1, the flatness tends to be larger than that in Example 1 after the second pass, and partial seizure was observed after the third pass drawing. That is, it was confirmed that the wire drawing state was poor after the third pass. In Comparative Example 2, many seizures were observed from the first pass. That is, it was confirmed that the wire drawing state was poor.

  The belt-shaped dry wire drawing lubricant of Example 1 is improved in lubricating coating properties and spreadability due to the interaction between the conventional dry wire drawing lubricant and the thermoplastic resin, and is also in the belt shape. A uniform lubricating film can be formed by being efficiently drawn into the die. Due to this effect, efficient wire drawing can be expected with less usage than conventional dry wire drawing lubricants. Also, because of the strip shape, it is more dusty than conventional dry wire drawing lubricants. It is judged that the work environment is unlikely to deteriorate.

  The belt-shaped dry wire drawing lubricant of the present invention is made of a metal such as steel and a large-diameter wire, a base material such as a wire, a tube, a rod, or a rod drawn from a die steel or other die steel, Used in wire drawing to reduce the diameter by plastic deformation of a rod or the like.

Claims (10)

  A belt-type dry wire drawing lubricant comprising a film containing 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin.   The saturated fatty acid is butyric acid, caproic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, serotic acid, montanic acid, and 2. The belt-shaped dry wire drawing lubricant according to claim 1, wherein the lubricant is mellicic acid.   The thermoplastic resin is polyethylene, polypropylene, polystyrene, acrylonitrile / styrene copolymer resin, acrylonitrile / butadiene / styrene copolymer resin, ethylene / vinyl acetate copolymer resin, methacrylic resin, vinyl chloride, polyamide, polyacetal, polyethylene terephthalate, poly 2. Butylene terephthalate, methylpentene, polycarbonate, polyphenylene sulfide, polyetheretherketone, polytetrafluoroethylene, polyetherimide, polyarylate, polysulfone, polyethersulfone, and / or polyamideimide Or the lubricant for strip | belt-shaped dry-drawing of 2 description.   The metal salt is a lithium salt, sodium salt, potassium salt, calcium salt, magnesium salt, aluminum salt, zinc salt, barium salt, and / or a composite metal salt thereof. The belt-type dry wire drawing lubricant according to any one of the above.   Contains boric acid, borate, phosphate, sulfate, carbonate, nitrate, slaked lime, titanium oxide, talc, mica, graphite, molybdenum disulfide, layered double hydroxide, and / or sulfur The belt-shaped dry wire drawing lubricant according to any one of claims 1 to 4.   A belt-like dry wire drawing lubricant characterized by heat-kneading 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin, forming a film, and forming a strip. Manufacturing method.   While the base material to be drawn is coated with the belt-like dry wire drawing lubricant according to claim 1, the base material is reduced in diameter by being drawn through the hole of the die, and then drawn. A wire drawing method characterized by:   The wire drawing method according to claim 7, wherein the base material is covered or covered with the belt-shaped dry wire drawing lubricant.   The wire drawing method according to any one of claims 7 to 8, wherein the belt-like dry wire drawing lubricant is guided by a roller and wound around the base material to cover the base material.   The wire drawing method according to claim 7, wherein the base material is made of metal.

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