JPS61223096A - Lubricant for hot working of steel - Google Patents

Lubricant for hot working of steel

Info

Publication number
JPS61223096A
JPS61223096A JP6575785A JP6575785A JPS61223096A JP S61223096 A JPS61223096 A JP S61223096A JP 6575785 A JP6575785 A JP 6575785A JP 6575785 A JP6575785 A JP 6575785A JP S61223096 A JPS61223096 A JP S61223096A
Authority
JP
Japan
Prior art keywords
lubricant
workpiece
plug
guide shoe
iron oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6575785A
Other languages
Japanese (ja)
Other versions
JPH0468358B2 (en
Inventor
Yutaka Kano
裕 鹿野
Masaru Udakouji
宇田小路 勝
Hideki Hora
洞 秀樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP6575785A priority Critical patent/JPS61223096A/en
Publication of JPS61223096A publication Critical patent/JPS61223096A/en
Publication of JPH0468358B2 publication Critical patent/JPH0468358B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To provide a lubricant applied between the working tool such as plug, guide shoe, etc., for the hot-working of seamless steel pipe and the material to be worked, e.g. raw pipe, etc., by mixing powdery iron oxide and a silicic acid compound at a specific ratio. CONSTITUTION:The objective lubricant is composed of (A) 10-80(wt)% iron oxide powder (most preferably red oxide) containing <=1% particles larger than 325 mesh and (B) 20-90% silicic acid compound (e.g. a slat of a silicic acid dioxide and a metal oxide such as sodium metasilicate, sodium orthosilicate, etc., a concentrated aqueous solution of an alkali silicate glass such as water glass, a colloidal silica such as an aqueous dispersion of ultrafine silica powder, an aluminosilicate such as mica, a phyllosilicate, etc.). In some cases, it is preferable to add an alkylene (co)polymer to the lubricant.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は継目無鋼管を熱間で製造する際に使用するプ2
グ或いはガイドシューの如き加工用工具と、丸又は角鋼
片の如き管材或いは素管等の被加工材との間の潤滑剤に
関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a plastic plate used in the hot manufacturing of seamless steel pipes.
The present invention relates to a lubricant between a machining tool such as a guide shoe and a workpiece such as a pipe material such as a round or square steel piece or a blank pipe.

従来の技術 継目無鋼管を熱間にて製造する傾斜ロール穿孔機、又は
プラグミルの如き延伸圧延機においては、1200℃前
後に加熱された被加工材を傾斜ロール等によ妙前進駆動
力を付与し、穿孔圧延又は延伸圧延するものである。穿
孔機の主要部分は第3図並びに第4図に示すように、2
個のtlI型ロール(7,8)と、芯金■の先端に支え
られた略砲弾型をなしたプラグ(1)と、被加工材0)
を挾持して該被加工材(3)が傾斜ロールbらはみだし
て穿孔又は延伸圧延作業が不安定になるのを防止するた
めの一対のガイドシュー(it、12)とからなり、前
記2@のtiW10−ル(7,8>は同一方向に同一速
度で回転しており、ロール軸は水平方向に対して6〜7
度又は10〜13*の傾斜をしている。このため、該ロ
ール(7,8)と被加工材(3)の表面との間のPJ擦
力は被加工材(3)を、該ロール(7,8)とともに回
転させると同時に、軸方向に前進させる・きをもつ。
Conventional technology In an inclined roll perforator or a stretching mill such as a plug mill that hot-produces seamless steel pipes, a workpiece heated to around 1200°C is given a special forward driving force to an inclined roll or the like. It is then subjected to piercing rolling or elongation rolling. The main parts of the drilling machine are shown in Figures 3 and 4.
tlI type rolls (7, 8), a roughly cannonball-shaped plug (1) supported by the tip of the core metal ■, and the workpiece 0)
It consists of a pair of guide shoes (IT, 12) for holding the workpiece (3) and preventing the workpiece (3) from protruding from the inclined roll b and making the perforation or elongation rolling operation unstable. The tiW10-rolls (7, 8>) are rotating in the same direction at the same speed, and the roll axis is 6 to 7 in the horizontal direction.
degree or 10-13* slope. Therefore, the PJ friction force between the rolls (7, 8) and the surface of the workpiece (3) causes the workpiece (3) to rotate together with the rolls (7, 8) and at the same time in the axial direction. To move forward.

例えば、穿孔作業においては、被加工材C)は前記ロー
ル(7,8)に噛み込まれてからプラグ(1)の先端に
達するまでに阿紀ロール(L8)によって強(連続的な
半径方向の圧縮力と前記ロール(7゜8)に直角方向の
引張り力を受けて、被加工材(3)の中心部はいわゆる
もみ割れ現象といわれる孔があき易い軟部になっている
ところへ、プラグ(1)を押し当て、所定の外径並びに
肉厚を有する継目無鋼管の素管を製造する。
For example, in a drilling operation, the workpiece C) is subjected to strong (continuous radial Under the compression force and the tensile force in the direction perpendicular to the roll (7°8), the center of the workpiece (3) is a soft part where holes are easily formed due to the so-called rice cracking phenomenon, and the plug ( 1) to produce a raw seamless steel pipe having a predetermined outer diameter and wall thickness.

前述の如き用途に用いられるプラグ(1)は一般には第
3図に示すように略砲弾型で、静止している芯金■に固
着されており、穿孔作業において前記被加工材(3)の
軸の廻りを高速で自転しつつ前進する赤熱した被加工材
(3)の軸芯に強く押付けられているので、前記プラグ
(1)の先端部は摩耗、溶損、割れ又は焼付きを起こし
、また胴部は変形を起す等の問題が発生し、プラグ(1
)の寿命が短かいという欠点がある。また穿孔作業の次
工程のプラグミルによる圧延作業においても同様のtt
Sが発生して前記プラグ(1)の寿命が短かいだけでな
く、製品の疵発生の原因にもなり、特に高合金鋼、特殊
鋼を対象とする製管の際、大きな問題となっている。
The plug (1) used for the above-mentioned purpose is generally approximately bullet-shaped as shown in Fig. 3, and is fixed to a stationary core metal (2), and is used to attach the workpiece (3) during drilling operations. Since the tip of the plug (1) is strongly pressed against the shaft core of the red-hot workpiece (3), which moves forward while rotating at high speed around the shaft, the tip of the plug (1) may wear out, melt, crack, or seize. In addition, problems such as deformation of the body occurred, and the plug (1
) has a short lifespan. In addition, the same tt
The generation of S not only shortens the life of the plug (1), but also causes defects in the product, which is a big problem especially when manufacturing pipes for high alloy steel and special steel. There is.

前述のプラグ(1)とともに、傾斜ロール穿孔機及び延
伸圧延機に用いられる加工用工具として重要なものにガ
イドシュー(11,12)がある。ガイドシュー(11
,12)は一般に穿孔又は延伸圧延中の被加工材(3)
と対向している面が凹面杖をした板吠体で前記被加工材
(3)を挟持拘束し、前記傾斜ロールからはみだして穿
孔又は延伸圧延作業が不安定になるのを防止し、或いは
拡管径を必要に応じて抑制せしめて、所定の外径の中空
素管を得るようにするためのものである。従って、前記
ガイドシュー(11,12)は、前記被加工材(3)の
穿孔或いは延伸圧延中は絶えず赤熱した被加工材(3)
に数十トンの圧力で押し付けられており、また被加工材
■が数m/妙の速度で前記ガイドシュー(11゜12)
表面を摺動するため、該ガイドシュー(11,12>と
該被加工材口)との接触面は約1300℃の高温に達し
、ガイドシュー(11,12)の被加工材C)との接触
面が摩耗し易くまた焼付を生じて、製品の表面にガイド
シューマークと呼ばれる疵が発生することがある。また
最近ガイドシューの形吠を前記被加工材(3)と対向す
る外周面を凹状溝にした円盤伏となしたガイド(以下デ
ィスク型ガイドシューという)が実用化された。
Along with the aforementioned plug (1), guide shoes (11, 12) are important processing tools used in inclined roll punching machines and elongation rolling machines. Guide shoe (11)
, 12) is generally the workpiece material (3) during drilling or elongation rolling.
The workpiece material (3) is clamped and restrained by a plate body having a concave cane on the surface facing the workpiece to prevent the workpiece from protruding from the inclined roll and making the perforation or elongation rolling operation unstable. This is to suppress the tube diameter as necessary to obtain a hollow shell tube with a predetermined outer diameter. Therefore, the guide shoes (11, 12) are constantly displacing the red-hot workpiece (3) during drilling or elongation rolling of the workpiece (3).
The workpiece is pressed against the guide shoe (11°12) at a speed of several meters per minute.
Because the guide shoes (11, 12) slide on the surface, the contact surface between the guide shoes (11, 12> and the workpiece port) reaches a high temperature of about 1300°C, and the contact between the guide shoes (11, 12) and the workpiece C) The contact surfaces are prone to wear and seize, which can result in scratches called guide shoe marks on the surface of the product. Recently, a guide in which the guide shoe has a disc shape with a concave groove on the outer circumferential surface facing the workpiece (3) (hereinafter referred to as a disc-shaped guide shoe) has been put into practical use.

該ディスク型ガイドシューは、上下対をなした凹状溝で
前記被加工材(3)を挟持拘束し、穿孔又は延伸圧延中
において被加工材(3)の移動速度に対応した速度で前
記ディスク型ガイドシューを回転せしめて、被加工材(
3)とガイドシューとの摩擦を軽減させ、ガイドシュー
の摩耗、焼付を抑制することをねらったものであるが、
このようなディスク型ガイドシューを使用しても、99
Aクロム鋼、13%クロム鋼、又はステンレス鋼の如き
難加工性鋼材の加工の際には前記ガイドシュー表面に激
しい焼付を生じ、製品の品質の低下を招来しているのが
現伏である。
The disc-shaped guide shoe clamps and restrains the workpiece (3) with a pair of upper and lower concave grooves, and moves the disc-shaped guide shoe at a speed corresponding to the moving speed of the workpiece (3) during drilling or elongation rolling. Rotate the guide shoe to remove the workpiece (
3) and the guide shoe, aiming to suppress wear and seizure of the guide shoe.
Even if such a disc type guide shoe is used, the
When machining difficult-to-work steel materials such as A chrome steel, 13% chromium steel, or stainless steel, the current situation is that severe seizure occurs on the surface of the guide shoe, resulting in a decline in product quality. .

したがって、従来にあってはこれら継目無鋼管を製造す
るための穿孔又は延伸圧延用のプラグの寿命延長のため
に、種々プラグ材質についての研究がなされ、例えば、
C:α1〜α5%s M o :a O〜7.0 %、
Cr:1.5〜a5%を含む工具鋼が特開昭55−11
0762号公報で提案されており、またプラグ表面に耐
♀り離性の高い酸化スケールを生成させる方法が、特開
昭54−17363号公報、特開昭56−82922号
公報で提案されている。前記酸化スケールはプラグの表
面をおおう断熱層となってプラグの溶損及び熱亀裂の発
生の予防をねらいとすると共に、1300℃以上の高温
にさらされた際は溶融し、被加工材とプラグとの境界部
で流体潤滑剤となってプラグへの被加工材の焼付の予防
をねらったものである。
Therefore, in the past, various plug materials have been studied in order to extend the life of the plugs for drilling or elongation rolling used to manufacture these seamless steel pipes.
C: α1~α5%s Mo: aO~7.0%,
Tool steel containing Cr: 1.5 to 5% is disclosed in Japanese Patent Application Laid-open No. 55-11.
0762, and a method of generating oxide scale with high peeling resistance on the plug surface has been proposed in JP-A-54-17363 and JP-A-56-82922. . The oxide scale acts as a heat insulating layer covering the surface of the plug to prevent melting and thermal cracking of the plug, and also melts when exposed to high temperatures of 1,300°C or higher, causing damage to the workpiece and the plug. The purpose is to prevent the workpiece from seizing on the plug by acting as a fluid lubricant at the interface between the plug and the plug.

しかしながら前述のような従来の技術では2%Cr’f
14、或いはJIS  5TPA20〜25の如きCr
−MofII4のような低合金鋼の穿孔又は延伸圧延の
際には成る程度の効果はあるものの、前記低合金鋼の被
加工材に較べ、高温かつ高圧下となる、9%Cr1l、
13%Cr鋼又は高Niステンレス鋼の如き高台金fR
(以下単に、高合金鋼と称す)の被加工材の穿孔又は延
伸圧延に使用する場合には、プラグの寿命は著しく低下
し、−回の使用で再使用不能となる場合も頻発している
However, in the conventional technology as mentioned above, 2% Cr'f
14, or Cr such as JIS 5TPA20-25
-Although it has some effect when drilling or elongating low alloy steel such as MofII4, it requires high temperature and high pressure compared to the aforementioned low alloy steel workpiece.
High base metal fR such as 13% Cr steel or high Ni stainless steel
(hereinafter simply referred to as high-alloy steel) when used for drilling or elongation rolling of workpieces, the life of the plug is significantly reduced, and it often becomes impossible to reuse it after one use. .

前述のプラグ自体の改良のほかに、プラグと被加工材と
の間の潤滑を行なってプラグの寿命の延長を計らんとす
る試みがなされており、潤滑剤として黒鉛、食塩、硼砂
、低融点フラックス、石灰、ガラス等を単独又は複数の
a類混合して用いる研究がなされているが未だ滴定すべ
き結果が得られていない。
In addition to the aforementioned improvements to the plug itself, attempts have been made to extend the life of the plug by lubricating the gap between the plug and the workpiece. Research has been carried out using flux, lime, glass, etc. alone or in a mixture of a plurality of substances in Class A, but no titration results have been obtained yet.

また、前記ガイドシューに関しても従来、特開昭52−
150357号公報で各種塩とその塩を保持するバイン
ダーとからなる焼付防止剤をガイドシュー内面に塗着し
て穿孔を行なう焼付防止方法が提案されており、特開昭
57−185106号公報でガイドシューと被加工材と
の間にミルスケールを介在させて圧延するガイドシュー
疵防止方法が提案されているが、いづれも、前記高合金
鋼の穿孔或いは延伸圧延の際には溝足すべき効果を奏し
ていないのが現状である。
Further, regarding the guide shoe, conventionally,
Japanese Patent Laid-Open No. 150357 proposes an anti-seizure method in which an anti-seize agent consisting of various salts and a binder that holds the salt is applied to the inner surface of the guide shoe to form holes; A method for preventing guide shoe defects has been proposed in which a mill scale is interposed between the shoe and the workpiece during rolling, but none of these methods have the effect of adding grooves when drilling or elongating the high alloy steel. The current situation is that it is not playing.

発明が解決しようとする問題点 前述の如(、種々の提案がなされて来たが、いずれの方
法も、高合金鋼の被加工材の穿孔又は延伸圧延に際して
、プラグと被加工材或いはガイドシ、−と被加工材との
間の焼付、摩耗、溶損等を防止する有効な手段とはなっ
ておらず、従って、焼付、溶損の結果製品に疵が発生し
て製品歩留が低下し、また、ガイドシューの摩耗、焼付
、溶損等の結果、ガイドシューの取替のために稼働率が
低下するという間層があった。
Problems to be Solved by the Invention As mentioned above, various proposals have been made, but all of these methods require that a plug and a workpiece or a guide shaft be used when drilling or elongating a workpiece of high alloy steel. - It is not an effective means to prevent seizure, abrasion, melting damage, etc. between the material and the workpiece. Therefore, as a result of seizure and melting damage, defects occur on the product and the product yield decreases. In addition, as a result of wear, seizure, and melting of the guide shoe, there was a problem that the operating rate decreased due to the need to replace the guide shoe.

本発明の目的はか−る問題点を解決し得る新規な潤滑剤
を提供することにある。
An object of the present invention is to provide a new lubricant that can solve these problems.

問題点を解決するための手段 本発明は酸化鉄粉末10〜80重量%、珪酸化合物20
−90重量%からなる鋼材の熱間加工用潤滑剤(第1発
明品)、並びに酸化鉄粉末10〜80fffffi%、
珪酸化合物10〜80重量%、及びアルキレン系重合体
又は共重合体10〜80重量%からなる鋼材の熱間加工
用潤滑剤(第2発明品)である。
Means for Solving the Problems The present invention uses 10 to 80% by weight of iron oxide powder and 20% by weight of silicate compound.
- A lubricant for hot working of steel materials (first invention product) consisting of 90% by weight, and iron oxide powder of 10 to 80fffffi%,
A lubricant for hot working of steel (second invention product) comprising 10 to 80% by weight of a silicate compound and 10 to 80% by weight of an alkylene polymer or copolymer.

本発明品に用いられる酸化鉄粉末は325メツシュ以上
の粒子が5%以下であるもので、より好ましくは325
メツシュ以上の粒子が1%以下であるものがよく、一般
には弁柄と呼ばれるものがRMlである。
The iron oxide powder used in the product of the present invention has 5% or less of particles with a mesh size of 325 or more, more preferably 325
It is preferable to have 1% or less of particles larger than mesh, and what is generally called Bengara is RM1.

本発明品に用いられる珪酸化合物はメタ珪酸ナトリウム
並びにオルソ珪酸ナトリウムの如く二酸化珪酸と金属酸
化物とからなる塩類、水ガラスのようなアルカリ珪酸系
ガラスの濃厚水溶液類、無水珪酸の超微粒子を水中に分
散させたようなコロイダルシリカ類、雲母のようなアル
ミノ珪酸塩類、フィロ珪酸塩類が使用される。
The silicic acid compounds used in the products of the present invention include salts made of silicic acid and metal oxides such as sodium metasilicate and sodium orthosilicate, concentrated aqueous solutions of alkali silicate glass such as water glass, and ultrafine particles of silicic anhydride in water. Colloidal silicas such as those dispersed in silica, aluminosilicates such as mica, and phyllosilicates are used.

更に本発明品に用いられるアルキレン系重合体又は共重
合体はアクリル酸又はエステル類の重合体又は共重合体
、酢酸ビニールやエチレン酢酸ビニールのようなビニー
ルエステル類の重合体又は共重合体、スチレンマレイン
酸共重合体、マレイン酸エステル類の重合体等の如く、
水に溶けない性質を備えた微粒子伏のものを乳状にした
ものが適している。
Furthermore, the alkylene polymers or copolymers used in the products of the present invention include polymers or copolymers of acrylic acid or esters, polymers or copolymers of vinyl esters such as vinyl acetate and ethylene vinyl acetate, and styrene. Such as maleic acid copolymers, maleic acid ester polymers, etc.
Emulsified microparticles that are insoluble in water are suitable.

本発明の潤滑剤の組成のうち、wE1発明品および第2
発明品ともに酸化鉄粉末は10〜80重量%、好ましく
は20〜40重量%である。酸化鉄粉末は少な過ぎると
潤滑効果を低下させ、また逆に多過ぎるとバインダー中
に均質に混合分散させることか困難となり、図示しない
潤滑剤の塗布装置の中の該潤滑剤を送給するための導管
の中で酸   。
Among the compositions of the lubricant of the present invention, the wE1 invention product and the second
In both invention products, the iron oxide powder is 10 to 80% by weight, preferably 20 to 40% by weight. If the amount of iron oxide powder is too small, the lubricating effect will be reduced, and if it is too large, it will be difficult to mix and disperse the iron oxide powder homogeneously in the binder. acid in the conduit.

化鉄粉末が詰まる等のトラブルを招来するのみならず、
塗布した潤滑剤塗膜に酸化鉄粉末の濃淡のムラが生じ、
潤滑効果の低下をも招来することになる。
Not only will iron chloride powder cause problems such as clogging,
Unevenness in the density of iron oxide powder occurs in the applied lubricant film,
This also results in a decrease in the lubricating effect.

珪酸化合物の含有量は、第1発明品の場合20〜90重
量%、tlT2発明品の場合10〜80重量%が良く、
好ましくはいづれの場合も30〜60Tn量%である。
The content of the silicic acid compound is preferably 20 to 90% by weight in the case of the first invention product, and 10 to 80% by weight in the case of the tlT2 invention product.
Preferably, the amount of Tn is 30 to 60% in either case.

珪酸化合物の量が多過ぎると前記工具の表面に生成して
いる酸化スケールを溶解せしめ、その結果前記工具の寿
命の低下を招き、逆に少な過ぎると、穿孔又は延伸圧延
中に高温の被加工材と接触している前記工具の表面から
酸化鉄粉末が剥脱するのを抑制できなくなり、潤滑効果
の低下を招来する。
If the amount of silicic acid compound is too large, it will dissolve the oxide scale formed on the surface of the tool, resulting in a reduction in the life of the tool, while if it is too small, it will cause the workpiece to be processed at high temperature during drilling or elongation rolling. It becomes impossible to suppress the iron oxide powder from exfoliating from the surface of the tool that is in contact with the tool, resulting in a decrease in the lubricating effect.

更に第2発明品に添加されるアルキレン系重合体又は共
重合体の添加量は10〜80重量%がよく、さらに好ま
しくは30〜50重量%である。
Further, the amount of the alkylene polymer or copolymer added to the second invention product is preferably 10 to 80% by weight, more preferably 30 to 50% by weight.

このアルキレ/系重合体又は共重合体は塗布した塗膜の
水使用環境下に右ける耐剥離性向上のためのもので、少
な過ぎると塗膜の耐水性、並びに耐剥離性が悪くなり、
逆に多過ぎると潤滑剤の粘度が高くなるため、前記工具
への該潤滑剤の塗布がしにくくなったり、図示していな
い潤滑剤の塗布装置の中の該潤滑剤を送給するための4
管の中で潤滑剤が詰まる等のトラブルを招来する。
This alkylene/based polymer or copolymer is used to improve the peeling resistance of the applied coating film depending on the environment in which water is used. If it is too small, the water resistance and peeling resistance of the coating film will deteriorate.
On the other hand, if the amount is too high, the viscosity of the lubricant will increase, making it difficult to apply the lubricant to the tool, or the lubricant in a lubricant applicator (not shown) for feeding the lubricant. 4
This may cause problems such as lubricant clogging inside the pipe.

作         用 前記工具の使用に先立ち、第1発明品たる酸化鉄粉末1
0〜801tffi%、珪酸化合物20〜90ffif
fi%からなる潤滑剤を該工具に塗布して使用に供し、
高温、高圧下での被加工材と該工具との間に酸化鉄粉末
及び珪酸化合物を介在させて、穿孔又は延伸圧延するこ
とによって、酸化鉄粉末は断熱効果並びに潤滑効果を奏
する。珪酸化合物は前記潤滑剤がAi轟の被圧延材に接
触した際に酸化鉄粉末の法膜が前記工具表面から別離脱
落するのを防止するとともに、1200乃至1300℃
の高温下での前記酸化鉄粉末の溶融を促進して高温液軟
化して潤滑作用を発揮せしめて、工具の摩耗、焼付、溶
損或いは変形を防止する効果を奏する。
Function: Prior to using the tool, iron oxide powder 1, which is the first invention,
0-801tffi%, silicic acid compound 20-90ffif
Applying a lubricant consisting of fi% to the tool and using it,
By interposing iron oxide powder and a silicate compound between the workpiece and the tool under high temperature and high pressure, and performing perforation or elongation rolling, the iron oxide powder has a heat insulating effect and a lubricating effect. The silicic acid compound prevents the film of iron oxide powder from separating from the tool surface when the lubricant comes into contact with the rolled material of the aluminum roller, and also prevents the film from falling separately from the tool surface.
It promotes melting of the iron oxide powder at high temperatures, softens the high temperature liquid, and exhibits a lubricating effect, which has the effect of preventing wear, seizure, melting damage, or deformation of the tool.

また第2発明品たるアルキレン系重合体又は共m合体を
添加した、酸化鉄粉末10〜80這量%、珪酸化合物1
0〜80i重量%及びアルキレン系重合体又は共重合体
10〜80重量%からなる潤滑剤となしたことにより、
前記工具に本発明品を塗布して使用に供せんとする際の
常温下での耐水性或いは耐I1m性を向上せしめ、潤滑
剤のmaが穿孔又は延伸圧延における使用に供する以前
に、冷却水にさらされ或いは、工具同士の接触等により
剥離、脱落するのを防止する作用がある。
In addition, iron oxide powder 10 to 80% by weight and 1 silicic acid compound added with the second invention, an alkylene polymer or a co-m polymer.
By forming a lubricant consisting of 0 to 80% by weight and 10 to 80% by weight of an alkylene polymer or copolymer,
The product of the present invention is coated on the tool to improve its water resistance or I1m resistance at room temperature when the tool is ready for use, and the lubricant ma can be used for cooling water before it is used for drilling or elongation rolling. It has the effect of preventing peeling or falling off due to exposure to water or contact between tools.

実   施   例 次に実施例に基づき、本発明の熱間加工用潤滑剤の効果
について説明する。
EXAMPLES Next, the effects of the hot working lubricant of the present invention will be explained based on examples.

実  施  例  ! 第1図は本発明の潤滑剤をマンネスマン穿孔機のプラグ
の潤滑に使用して13%Crステンレス丸鯛の穿孔のテ
ストを行った場合の概念図である。常温(約20℃)下
で保管していた複数個の新品のプラグに潤滑剤をばけ塗
りで塗布した後、プロワ−によって熱風を吹付けて十分
乾燥させた。
Example ! FIG. 1 is a conceptual diagram of a test for drilling a 13% Cr stainless steel round sea bream using the lubricant of the present invention for lubricating the plug of a Mannesmann drilling machine. A plurality of new plugs that had been stored at room temperature (approximately 20° C.) were coated with lubricant and then thoroughly dried by blowing hot air with a blower.

乾燥後の潤滑塗膜の厚さは略100〜500μmであっ
た。1本の被加工材の穿孔に使用する毎に検査をし、再
使用可能と判断されたプラグは水槽にどぶ潰して、プラ
グの胴部の温度が100℃〜200℃になるまで冷却し
た後、潤滑剤の塗布を行ない、上述と同様の方法で乾燥
した後再使用に供した。かようにして使用後の検査の結
果、再使用不能として廃却されてしまうまで、前述のテ
ストを繰返した。その結果をfJ1表に示す。
The thickness of the lubricating coating after drying was approximately 100 to 500 μm. Each time a plug is used to drill a hole in a workpiece, it is inspected, and plugs that are determined to be reusable are crushed in a water tank and cooled until the temperature of the body of the plug reaches 100℃ to 200℃. After applying a lubricant and drying it in the same manner as described above, it was reused. In this way, the above-mentioned test was repeated until the product was inspected after use and was determined to be unusable and discarded. The results are shown in Table fJ1.

本テストで使用した弁柄1は粒度325メツシュ以上の
ものがα1%以下のものであり、弁柄2は粒度325メ
ツシュ以上のものが5%のものであった。
Bengara 1 used in this test had a particle size of 325 mesh or more and α1% or less, and Bengara 2 had a particle size of 325 mesh or larger and 5%.

(以下余白) 第1表から明らかなように、弁柄10〜80重n%、メ
タ珪酸ナトリウム、水ガラス、コロイダルシリカ、又は
雲母等の珪酸化合物20〜90mn%からなる潤滑剤を
使用し、ロール冷却水を停止   止して穿孔した場合
のプラグの寿命は、通常の穿孔時の如くロール冷却水を
流して穿孔した場合に較べ2〜3バス増加となる。
(Left below) As is clear from Table 1, using a lubricant consisting of 10 to 80 weight n% of Bengara and 20 to 90 mn% of a silicate compound such as sodium metasilicate, water glass, colloidal silica, or mica, The life of the plug when drilling is performed with the roll cooling water stopped is 2 to 3 busses longer than when drilling is performed with the roll cooling water flowing as in normal drilling.

次に弁柄10〜80ii量%、メタ珪酸ナトリウム、水
ガラス、コロイダルシリカ、又は雲母10〜80重量%
、アクリルfl1m合物樹脂、酢酸ビニールm合物樹脂
、又はスチレンマレイン酸重合物樹脂10〜80重量%
からなる潤滑剤を使用した場合は寿命の短かいもので4
〜5パス、寿命の長いものは6〜8パスという結果が出
ており、従来品の2〜3パスに比較して、寿命延長の効
果は顕著である。
Next, Bengara 10-80% by weight, sodium metasilicate, water glass, colloidal silica, or mica 10-80% by weight.
, acrylic fl1m compound resin, vinyl acetate m compound resin, or styrene maleic acid polymer resin 10 to 80% by weight
If a lubricant consisting of
-5 passes, and those with a long life span of 6 to 8 passes, which shows a remarkable effect of extending the life span compared to the 2 to 3 passes of conventional products.

実  施  例  2 次に本発明の潤滑剤を前記マンネスマン穿孔機のディス
ク型ガイドシューの潤滑に使用して、13%Crステン
レス丸鯛の穿孔のテストを行うた。第2図に従ってその
概要を説明する。
Example 2 Next, the lubricant of the present invention was used to lubricate the disc-type guide shoe of the Mannesmann drilling machine, and a test was conducted on drilling a 13% Cr stainless steel round sea bream. The outline will be explained according to FIG.

テストに当っては、よく整備された上下一対のディスク
型ガイドシュー(a6)を取付け、該ディスク型ガイド
シュー(翫6)は、図示していない減速機を介してモー
ターによって、前記被加工材■の移動速度に対応した速
度で回転されている。
During the test, a pair of well-maintained upper and lower disc-shaped guide shoes (a6) was installed, and the disc-shaped guide shoes (a6) were driven by a motor through a speed reducer (not shown) to It is rotating at a speed corresponding to the moving speed of ■.

また該ディスク型ガイドシ、−(5,8>には、′潤滑
剤供給袋fit (9)からノズル側を経て、潤滑剤が
該ディスク型ガイドシュー(a6)の外周の溝部に供給
、塗布されると該ディスク型ガイドシュー(a6)の保
育熱によって瞬時に乾燥されて、該ディスク型ガイドシ
ュー(−〇)と前記被加工材a)との潤滑に供される。
In addition, lubricant is supplied and applied to the groove on the outer periphery of the disc-shaped guide shoe (a6) from the lubricant supply bag fit (9) through the nozzle side to the disc-shaped guide shoe (5, 8). Then, the disc-shaped guide shoe (a6) is instantly dried by the incubation heat, and is used for lubrication between the disc-shaped guide shoe (-0) and the workpiece a).

第2図には、下側のディスク型ガイドシュー(6)川の
潤滑剤供給装置並びにノズルの図示を省略したが、下側
のディスク型ガイドシュー(6)にも上側のディスク型
ガイドシュー■と同様に、潤滑剤が供給されるよう構成
されている。
Although the lower disc-shaped guide shoe (6), the lubricant supply device, and the nozzle are not shown in Figure 2, the lower disc-shaped guide shoe (6) also has an upper disc-shaped guide shoe. Similarly, the lubricant is supplied.

本テストでは、穿孔中はロール冷却水は絞り気味にし、
前記ガイドシュー(5,6)用の冷却水は停止して穿孔
した。その結果を第2表に示す。
In this test, the roll cooling water was slightly squeezed during drilling.
The cooling water for the guide shoes (5, 6) was stopped and the holes were drilled. The results are shown in Table 2.

1¥2表 本テストに使用した弁柄は粒度325メツシュ以上のも
のがα1%以下のものを使用した。
1 yen 2 Table The Bengara used in this test had a particle size of 325 mesh or more and an α of 1% or less.

第2表から明らかに本発明の潤滑剤はガイドシューの焼
付の防止に顕著な効果を奏するものである。
It is clear from Table 2 that the lubricant of the present invention has a remarkable effect on preventing guide shoe seizure.

本実施例では本発明の潤滑剤を丸鋼の穿孔に用′いたが
丸鋼に限られるものではなく、角鋼片から直接継目無鋼
管用の中空素管を製造するための穿孔に用いても同様の
効果を奏する。
In this example, the lubricant of the present invention was used for drilling round steel, but the lubricant is not limited to round steel. It has a similar effect.

本実施例では酸化鉄粉末として弁柄を使用し、珪酸化合
物としてはメタ珪酸ナトリウム、水ガラス、コロイダル
シリカ、又は雲母を使用し、アルキレン系重合体又は共
重合体としてはアクリル酸重合物樹脂、酢酸ビニル重合
物樹脂、又はスチレンマレイン酸重合物樹脂を使用した
が、本発明の潤滑剤は、本実施例の組成に限定されるも
のではなく、本発明の要旨を変更しない範囲において、
種々の組合せが可能であることは言うまでもない。
In this example, Bengara was used as the iron oxide powder, sodium metasilicate, water glass, colloidal silica, or mica was used as the silicate compound, and acrylic acid polymer resin, as the alkylene polymer or copolymer, Although vinyl acetate polymer resin or styrene maleic acid polymer resin was used, the lubricant of the present invention is not limited to the composition of this example, and within the scope of not changing the gist of the present invention,
It goes without saying that various combinations are possible.

発明の効果 傾斜ロール穿孔機又は延伸圧延機を用いて継目無鋼管を
熱間で製造する際に使用するプ・ラグ或いはディスク形
または板伏ガイドシューの如き加工用工具と被加工材と
の接触面での潤滑剤として本発明の潤滑剤を使用するこ
とにより、該接触面での焼付き、溶損の防止、摩耗の抑
制に顕著な効力があるので前記加工用工具寿命が大幅に
延長され、しかも製品の疵の発生が減少し、その効果は
絶大である□。
Effects of the invention Contact between the workpiece and a processing tool such as a plug-plug, disc-shaped or flattened guide shoe used when hot manufacturing seamless steel pipes using an inclined roll perforator or an elongation rolling machine. By using the lubricant of the present invention as a lubricant on the contact surface, it has a remarkable effect on preventing seizure, erosion and wear on the contact surface, so the life of the machining tool can be greatly extended. Moreover, the occurrence of defects in products is reduced, and the effect is tremendous□.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の潤滑剤をマンネスマン穿孔機のプラグ
の潤滑に使用して穿孔する場合の概念図、第2図は本発
明の潤滑剤をマンネスマン穿孔機のディスク型ガイドシ
ューの潤滑に使用して穿孔テストを行った際の縦断正面
図、第3図は傾斜ロール穿孔機の平面図、第4図はfi
s図のX−X線矢視図である。 図中、1・・・プラグ 2・・・芯金 3・・・被加工
材5.6・・・ディスク型ガイドシュー 7.8・・・ロール 9・・・潤滑剤供給装置10・・
・ノズル 第3図 第4図 第1図 第2図
Figure 1 is a conceptual diagram of drilling using the lubricant of the present invention to lubricate the plug of a Mannesmann drilling machine, and Figure 2 shows the use of the lubricant of the present invention to lubricate the disc-shaped guide shoe of the Mannesmann drilling machine. Fig. 3 is a plan view of the tilted roll perforator, and Fig. 4 is a longitudinal sectional front view of the perforation test conducted.
It is a XX arrow view of the s figure. In the figure, 1... Plug 2... Core metal 3... Workpiece material 5.6... Disk type guide shoe 7.8... Roll 9... Lubricant supply device 10...
・Nozzle Figure 3 Figure 4 Figure 1 Figure 2

Claims (2)

【特許請求の範囲】[Claims] (1)酸化鉄粉末10〜80重量%、珪酸化合物20〜
90重量%からなる鋼材の熱間加工用潤滑剤。
(1) Iron oxide powder 10-80% by weight, silicate compound 20-80% by weight
A lubricant for hot working of steel consisting of 90% by weight.
(2)酸化鉄粉末10〜80重量%、珪酸化合物10〜
80重量%、およびアルキレン系重合体又は共重合体1
0〜80重量%からなる鋼材の熱間加工用潤滑剤。
(2) Iron oxide powder 10-80% by weight, silicate compound 10-80% by weight
80% by weight, and alkylene polymer or copolymer 1
A lubricant for hot working of steel consisting of 0 to 80% by weight.
JP6575785A 1985-03-28 1985-03-28 Lubricant for hot working of steel Granted JPS61223096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6575785A JPS61223096A (en) 1985-03-28 1985-03-28 Lubricant for hot working of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6575785A JPS61223096A (en) 1985-03-28 1985-03-28 Lubricant for hot working of steel

Publications (2)

Publication Number Publication Date
JPS61223096A true JPS61223096A (en) 1986-10-03
JPH0468358B2 JPH0468358B2 (en) 1992-11-02

Family

ID=13296219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6575785A Granted JPS61223096A (en) 1985-03-28 1985-03-28 Lubricant for hot working of steel

Country Status (1)

Country Link
JP (1) JPS61223096A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6483309A (en) * 1987-09-28 1989-03-29 Nisshin Steel Co Ltd Lubricant for hot rolling stainless steel
JPH0284492A (en) * 1988-06-14 1990-03-26 Kyodo Yushi Kk Lubricant composition for hot rolling of steel
JPH0391596A (en) * 1989-09-04 1991-04-17 Yoko Yakuka Kogyo Kk Lubricant
WO1991014757A1 (en) * 1990-03-28 1991-10-03 Nisshin Steel Co., Ltd. Hot rolling lubricant for stainless steel
JPH05214358A (en) * 1992-02-03 1993-08-24 Nippon Steel Chem Co Ltd Lubricant composition for high temperature
WO2007105774A1 (en) * 2006-03-14 2007-09-20 Sumitomo Metal Industries, Ltd. Lubricant for hot plastic working

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6483309A (en) * 1987-09-28 1989-03-29 Nisshin Steel Co Ltd Lubricant for hot rolling stainless steel
JPH0284492A (en) * 1988-06-14 1990-03-26 Kyodo Yushi Kk Lubricant composition for hot rolling of steel
JPH0391596A (en) * 1989-09-04 1991-04-17 Yoko Yakuka Kogyo Kk Lubricant
WO1991014757A1 (en) * 1990-03-28 1991-10-03 Nisshin Steel Co., Ltd. Hot rolling lubricant for stainless steel
JPH05214358A (en) * 1992-02-03 1993-08-24 Nippon Steel Chem Co Ltd Lubricant composition for high temperature
WO2007105774A1 (en) * 2006-03-14 2007-09-20 Sumitomo Metal Industries, Ltd. Lubricant for hot plastic working
US7956019B2 (en) 2006-03-14 2011-06-07 Sumitomo Metal Industries, Ltd. Lubricant for a hot plastic working
JP4893736B2 (en) * 2006-03-14 2012-03-07 住友金属工業株式会社 Lubricant for hot plastic working

Also Published As

Publication number Publication date
JPH0468358B2 (en) 1992-11-02

Similar Documents

Publication Publication Date Title
US5983689A (en) Lubricant for use in hot work
SU632305A3 (en) Metal lubricant concentrate for hot treatment
US5580845A (en) Lubricant
JP4705096B2 (en) Seamless pipe manufacturing method
JPS61223096A (en) Lubricant for hot working of steel
SU625621A3 (en) Lubricant for hot working of metals
JPH05171165A (en) Lubricant for hot rolling of seamless metal pipe
JP2846497B2 (en) Hot rolling method and surface treatment agent
JP2005103603A (en) Apparatus and method for manufacturing pipe with grooved inner surface
JPH10121088A (en) Lubricant composition for high-temperature processing of metal and method for using the same
JPS63234092A (en) Flaw occurrence-preventing agent for producing seamless steel pipe and method for preventing flaw of seamless steel pipe
JPH0325241B2 (en)
CN104817857B (en) Prevent high Cr, high Ni steel alloys from producing the coating of steel bonding defect in the hot rolling
EP2000525A1 (en) Lubricant for hot plastic working and powder lubricant composition for hot working
JP2005220267A (en) Seamless steel pipe rolling lubricant
JPS6234356B2 (en)
JPS61195196A (en) Lubricant composition for high-temperature use
JP2000202507A (en) Caliber rolling method by solid lubrication
JPH0230311A (en) Skew rolling method for seamless steel tube and seizure preventing agent
JPH07284817A (en) Method for rolling seamless steel tube
JP3528163B2 (en) Lubricant composition for hot working
JPH07116709A (en) Rolling method of seamless steel tube
JPH04130195A (en) Lubricant for hot rolling of common steel or special steel
JPS60108497A (en) Solid lubricant for preparation of seamless steel pipe
JPS6056406A (en) Mannesmann piercing method

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term