JPH02233798A - Lubricant for threading water pipe - Google Patents

Lubricant for threading water pipe

Info

Publication number
JPH02233798A
JPH02233798A JP5282989A JP5282989A JPH02233798A JP H02233798 A JPH02233798 A JP H02233798A JP 5282989 A JP5282989 A JP 5282989A JP 5282989 A JP5282989 A JP 5282989A JP H02233798 A JPH02233798 A JP H02233798A
Authority
JP
Japan
Prior art keywords
oil
water
mineral oil
lubricant
sulfurized
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
JP5282989A
Other languages
Japanese (ja)
Other versions
JPH0832906B2 (en
Inventor
Masahiro Noda
昌宏 野田
Yasuhiko Yamanaka
山中 靖彦
Masao Obara
小原 正男
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.)
Yushiro Chemical Industry Co Ltd
Original Assignee
Yushiro Chemical Industry Co 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 Yushiro Chemical Industry Co Ltd filed Critical Yushiro Chemical Industry Co Ltd
Priority to JP1052829A priority Critical patent/JPH0832906B2/en
Publication of JPH02233798A publication Critical patent/JPH02233798A/en
Publication of JPH0832906B2 publication Critical patent/JPH0832906B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Lubricants (AREA)

Abstract

PURPOSE:To obtain the subject lubricant having a specific viscosity and excellent cutting performance and easily removable from a threaded water pipe by washing the stained pipe with water by adding a nonionic or anionic surfactant in addition to a (sulfurized) mineral oil, an oil agent and an extreme- pressure additive. CONSTITUTION:The objective lubricant contains (A) a mineral oil and/or a sulfurized mineral oil, (B) an oil agent and (C) an extreme-pressure additive as essential components, further contains (D) 5-30wt.% (preferably 10-20wt.%) of a nonionic and/or anionic surfactant (e.g. an ethylene oxide adduct of higher alcohol or petroleum sulfonic acid sodium salt) and has a kinetic viscosity of 5-50mm<2>/sec at 40 deg.C.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、水道管のねじ切り加工用油剤に閲する. 従来の技術 亜鉛めっき鋼管が主として使用されている水道管は、接
続するためにねじ切り加工される.ねじ切り加工におい
ては,高いねじ精度を得ると共に,工具と加工面との間
に作用する大さな摩擦力を軽減するために、切削性能に
優れた切削油剤を用いることが必要である. したがって、ねじ切り加工においては,塩素系や硫黄系
の極圧剤を含有する不水溶性の切削油剤が使用されてい
る.切削性に優れた不水溶性の切削油剤を使用すれば良
好なねじ精度は得られるが,水道管の内面には切削油剤
が付着しているため、このままでは配管に使用すること
はできない. そこで,従来は有機溶剤による洗浄を行っているが,有
機溶剤は人体に対する毒性や引火の危険性がある. 一方,水で希釈して使用する水溶性の切削油剤を用いれ
ば、洗浄性は良好となるが,反面切#薔性が劣っている
ため、ねじ精度や加工能率等に問題を生じる. 発明が解決しようとする問題点 上記の現状であるから、本発明の目的は、切削性に便れ
、かつねじ切り加工後の水道管に付着した切削油剤を水
で容易に洗浄することができる水道管ねじ切り加工用油
剤を提供することにある.問題点を解決するための手段 本発明者らは、前記目的を達成するために鋭意研究した
結果、鉱油及び/または硫化鉱油を基油として用い,該
基油に油性剤および極圧添加剤を含有した突来の切削油
剤に対して、界面活性剤を加えた特定粘度を有する油剤
が、切削性を低下させることがなく、水で容易に除去す
ることができることを見いだして本発明を完成した.す
なわち,本発明の要旨は、鉱油および/または硫化鉱油
、油性剤および極圧添加剤を必須成分として含有する切
削油剤において,ノニオン系および/またはアニオン系
の界面活性剤を5ないし301量%含有し、40℃にお
ける動粘度が5ないし5 0 m rn’ / sec
であるζとを特徴とする水道管ねじ切り加工用油剤であ
る. 以下に本発明の構成要素について詳細に説明する. 〔界面活性剤〕 本発明に使用する界面活性剤は、基油、油性剤および極
圧添加剤等と均一に溶解するものであれば、ノニオン系
またはアニオン系を問わず使用することができる.界面
活性剤は1種だけを使用しても良いが.2種以上を混合
して使用することをも妨げない. 界面活性剤の添加量は5ないし30重量%、好ましくは
10ないし20重量%である.界面活性剤の添加量が5
重量%未満では水による洗浄性を満足することができな
い.また,界面活性剤の添加量が30i量%を越えると
、経済的に好ましくない. 本発明に使用することができるノ二オン系界面活性剤と
しては、高級アルコールエチレンオキサイド付加物、ア
ルキルフェノールエチレンオキサイド付加物,ペンタエ
リスリトールの脂肪酸エステル,ソルビタンの脂肪酸エ
ステル,脂肪酸アマイド等を例示することができる. また,アニオン系界面活性剤としては、石油スルホン酸
ナトリウム塩,石油スルポン酸カリウム塩、脂肪酸石け
ん、脂肪酸アミン塩、硫酸エステルナトリウム塩等を例
示することができる.〔油剤の粘度〕 本発明の水道管ねじ切り加工用油剤は、40”0の動粘
度が5ないし50mtn’/seeであることが必要で
ある.動粘度が5mrn’/sec未満では引火点が低
くなるので好ましくない.また,動粘度が50mm″/
 s e cを越えると、水による洗浄性が低下すると
共に、作業性が悪化するので好ましくない. 〔使用方法〕 本発明の水道管ねじ切り加工用油剤は,不水溶性切削油
剤と同様にして使用する. なお、本発明の水道管ねじ切り加工用油剤に対しては、
必要に応じて、酸化防止剤、金属防食剤、消泡剤等、従
来の不水溶性切削油剤に用いられている助剤をも添加す
ることができる.実  施  例 次に実施例および比較例によって本発明を具体的に説明
する.ただし、本発明はこれらの実施例および比較例に
よってなんら制限されるものではない. なお,下記の実施例および比較例において、成分の含有
量を示す数値の単位は重量%である.実施例1 マシン油CJIS K 2238 1S’O VG 1
0  相当〕7 2% 塩素化パラフィン(塩素分50重量%)5% ジラウリルペンタスルフィッド     3%硫化豚脂
(硫貴分10重量%)     5%RO (CH2 
CH2 0)9 H       9%(上式において
Rは炭素原子数が13ないしl5のアルキル基を総括的
に示す.) ペンタエリスリトールセスヤオレエート 6%(動粘度
は−40℃において17.2mmz/sec,引火点は
170℃のものである.)実施例2 マシン油(JIS K 2238 1SO VG 5相
当)7 2% 塩素化パラフィン(塩素分50重量%)5% ジラウリルペンタスルフィッド      3%硫化豚
脂(硫黄分10重量%)      5%ノニルフェノ
ールエチレンオキサイド 8モル付加物           lO%ソルビタン
セスキオレエート      5%(動粘度は−40℃
において8.2mm27sec、引火点は138℃のも
のであ る.) 実施例3 マシン油(JISκ2238 1SO VG 1Gマシ
ン油(JISκ2238 1SO VC 4B塩素化パ
ラフィン(塩素分50wt!)ジラウリルペンタスルフ
ィッド 硫化豚脂(硫貴分10重量%) ノニルフェノールエチレンオキサイ 8モル付加物 相当) 12% 相当) 55% 5% 3% 5% ド 5% ソルビタンセスキオレエート       5%石油ス
ルホネートナトリウム塩    lO%(勤粘度は−4
0℃において46.5mm27 S el C、引火点
は184℃のものである.) 実施例4 マシン油(JIS K 2238 1SO VG 10
  相当)4 5% マシン油(JIS K 2238 1SO VC 4B
相当)4 2% 塩素化パラフィン(塩素分50重量%) 5%ノニルフ
ェノールエチレンオキサイド 8モル付加物            5%ソルビタン
セスキオレエート       3%(動粘度は−40
℃においi”250mm2/Sec、引火点は178℃
のものであ る.) 比較例l マシン油(JIS K 2238 1SO VC 1G
  相当)6 8% マシン油(JIS K 2238 1SO VC 4S
  相当)1 9% 墳素化パラフィン(塩素分50重量%) 5%ジテウリ
ルペンタスルフィフド     3%硫化豚脂(硫黄分
lO重量%)      5%(動粘度は−40℃にお
いテ1 5 . 0 mm2/ s e c、引火点=
166℃のも゛のである.) 比較例2 水溶性切削油剤(JIS  K2241  Wl種1号
相当品)の10重量%希釈液(希訳水は水道水) 〔性能評価試験〕 本発明の実施例および比較例の組成物について洗浄性お
よび切削性を評価した. 〔洗浄性〕 冷間圧延鋼板(JIS  G  3141  spcC
ダル仕上げ.80X60X1.2mm)を試料油剤中に
浸漬した後に取り出し、室内に5分間懸垂して試験片と
した. 一方,第1図に示すような2J1容のビーカー4に水道
水2をいれ,スターラ−3で攪拌(回転数は200回転
/分)する洗浄試験装置を作った.この中に、上記試験
片1を5分間懸垂して洗浄した後に取り出し、水分を乾
燥させた.試験前後の付着油分量を測定し,洗浄性の指
標とした.なお,試験は水温25℃にて行った.その結
果を第1表に示す. 第 1 表(1) 第  1 表(2) 第  3  表 第1表によれば,本発明の油剤はいずれも良好な洗浄性
を有することが認められるが、従来の不水溶性切削油剤
は水ではほとんど除去できないことが判る. 〔切削性〕 本発明の実施例および比較例の組成物について、チェザ
ーによる水道管のねじ切り加工を行い、切削面の状態を
観察して切削性の指標とした.試験条件を第2表に示し
、試験結果を第3表に示す. 第  2  表 (注)第3表中の記号は、下記の意味をもつ.Oは良好
(むしれ無し) Xは不良(むしれが多い) 発明の効果 本発明の水道管ねじ切り加工用油剤は,従来の不水溶性
切削油剤と同等の切削性能を有し,加工後、付着した油
剤は水で容易に除去することができる. したがって、本発明の水道管ねじ切り加工用油剤を使用
すれば、加工後に特別な洗浄操作を必要としないので、
非常に経済的である.
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lubricant for thread cutting of water pipes. BACKGROUND OF THE INVENTION Water pipes, in which galvanized steel pipes are primarily used, are threaded for connection. In thread cutting, it is necessary to use a cutting fluid with excellent cutting performance in order to obtain high thread accuracy and reduce the large frictional force that acts between the tool and the machined surface. Therefore, in thread cutting, water-insoluble cutting fluids containing chlorine-based or sulfur-based extreme pressure agents are used. Good thread accuracy can be obtained by using a water-insoluble cutting fluid with excellent machinability, but since the cutting fluid adheres to the inner surface of water pipes, it cannot be used for piping as is. Conventionally, cleaning has been done using organic solvents, but organic solvents are toxic to humans and pose a risk of ignition. On the other hand, if a water-soluble cutting fluid is used diluted with water, cleaning performance is good, but on the other hand, it has poor surface cutting properties, which causes problems with thread accuracy and machining efficiency. Problems to be Solved by the Invention In view of the above-mentioned current situation, an object of the present invention is to provide a water supply system that is convenient in machinability and that allows easy cleaning of cutting oil adhering to water pipes after thread cutting with water. Our objective is to provide a lubricant for pipe thread cutting. Means for Solving the Problems As a result of intensive research to achieve the above object, the present inventors used mineral oil and/or sulfurized mineral oil as a base oil, and added an oiliness agent and an extreme pressure additive to the base oil. The present invention was completed by discovering that a surfactant-added oil having a specific viscosity compared to the conventional cutting oil contained therein does not reduce machinability and can be easily removed with water. .. That is, the gist of the present invention is to provide a cutting fluid containing mineral oil and/or sulfurized mineral oil, an oiliness agent, and an extreme pressure additive as essential components, containing 5 to 301% by weight of nonionic and/or anionic surfactant. and the kinematic viscosity at 40°C is 5 to 50 mrn'/sec
This is an oil for threading water pipes, which is characterized by ζ. The components of the present invention will be explained in detail below. [Surfactant] The surfactant used in the present invention may be nonionic or anionic, as long as it is uniformly dissolved in the base oil, oil agent, extreme pressure additive, etc. Only one type of surfactant may be used. It is not prohibited to use a mixture of two or more types. The amount of surfactant added is 5 to 30% by weight, preferably 10 to 20% by weight. The amount of surfactant added is 5
If the amount is less than % by weight, the washability with water cannot be satisfied. Furthermore, if the amount of surfactant added exceeds 30i%, it is economically unfavorable. Examples of nonionic surfactants that can be used in the present invention include higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts, pentaerythritol fatty acid esters, sorbitan fatty acid esters, and fatty acid amides. can. Examples of anionic surfactants include sodium petroleum sulfonates, potassium petroleum sulfonates, fatty acid soaps, fatty acid amine salts, and sodium sulfate esters. [Viscosity of oil] The oil for water pipe thread cutting of the present invention must have a kinematic viscosity of 5 to 50 mtn'/see at 40"0. If the kinematic viscosity is less than 5 mrn'/sec, the flash point will be low. Also, if the kinematic viscosity is 50mm/
If it exceeds sec, it is not preferable because the cleaning performance with water decreases and the workability deteriorates. [How to use] The water pipe thread cutting fluid of the present invention is used in the same manner as water-insoluble cutting fluids. In addition, regarding the oil for water pipe thread cutting of the present invention,
If necessary, auxiliary agents used in conventional water-insoluble cutting fluids, such as antioxidants, metal anticorrosives, and antifoaming agents, can also be added. EXAMPLES Next, the present invention will be specifically explained using examples and comparative examples. However, the present invention is not limited in any way by these Examples and Comparative Examples. In addition, in the following examples and comparative examples, the unit of numerical value indicating the content of the component is weight %. Example 1 Machine oil CJIS K 2238 1S'O VG 1
0 Equivalent] 7 2% Chlorinated paraffin (chlorine content 50% by weight) 5% Dilaurylpenta sulfide 3% Sulfurized lard (noble sulfur content 10% by weight) 5% RO (CH2
CH2 0)9 H 9% (In the above formula, R generally represents an alkyl group having 13 to 15 carbon atoms.) Pentaerythritol sesya oleate 6% (Kinematic viscosity is 17.2 mmz/ sec, flash point is 170°C.) Example 2 Machine oil (JIS K 2238 1SO VG 5 equivalent) 7 2% Chlorinated paraffin (chlorine content 50% by weight) 5% Dilauryl pentasulfide 3% Sulfurized lard (sulfur content 10% by weight) 5% nonylphenol ethylene oxide 8 mole adduct 10% sorbitan sesquioleate 5% (kinematic viscosity is -40°C
8.2 mm 27 sec, flash point is 138°C. ) Example 3 Machine oil (JIS κ2238 1SO VG 1G machine oil (JIS κ2238 1SO VC 4B chlorinated paraffin (chlorine content 50wt!) dilauryl pentasulfide sulfurized pork fat (sulfur noble content 10% by weight) nonylphenol ethylene oxy 8 moles Adduct equivalent) 12% equivalent) 55% 5% 3% 5% 5% Sorbitan sesquioleate 5% petroleum sulfonate sodium salt 1O% (viscosity is -4
It has a diameter of 46.5 mm27 S el C at 0°C and a flash point of 184°C. ) Example 4 Machine oil (JIS K 2238 1SO VG 10
equivalent) 4 5% Machine oil (JIS K 2238 1SO VC 4B
equivalent) 4 2% Chlorinated paraffin (chlorine content 50% by weight) 5% Nonylphenol ethylene oxide 8 mole adduct 5% Sorbitan sesquioleate 3% (Kinematic viscosity is -40
°C odor i”250mm2/Sec, flash point 178°C
belongs to. ) Comparative example l Machine oil (JIS K 2238 1SO VC 1G
equivalent) 6 8% Machine oil (JIS K 2238 1SO VC 4S
equivalent) 19% Compounded paraffin (chlorine content 50% by weight) 5% ditheuryl pentasulfide 3% sulfurized lard (sulfur content 10% by weight) 5% (Kinematic viscosity is -40℃ odor 15.0 mm2/sec, flash point =
The temperature is 166℃. ) Comparative Example 2 10% by weight diluted solution of water-soluble cutting fluid (JIS K2241 Wl class No. 1 equivalent) (diluted water is tap water) [Performance evaluation test] Cleaning of compositions of Examples and Comparative Examples of the present invention The strength and machinability were evaluated. [Cleanability] Cold rolled steel plate (JIS G 3141 spcC
Dull finish. 80 x 60 x 1.2 mm) was immersed in the sample oil, taken out, and suspended in a room for 5 minutes to form a test piece. On the other hand, a cleaning test device was constructed in which tap water 2 was poured into a 2J1 volume beaker 4 as shown in Figure 1, and the water was stirred with a stirrer 3 (rotation speed: 200 rpm). The above test piece 1 was suspended in this for 5 minutes to wash it, then taken out and dried. The amount of oil adhered before and after the test was measured and used as an index of cleanability. The test was conducted at a water temperature of 25°C. The results are shown in Table 1. Table 1 (1) Table 1 (2) Table 3 According to Table 1, it is recognized that all the oils of the present invention have good cleaning properties, but the conventional water-insoluble cutting oils It turns out that it is almost impossible to remove it. [Machinability] For the compositions of Examples and Comparative Examples of the present invention, water pipes were threaded with a chaser, and the state of the cut surface was observed and used as an index of machinability. The test conditions are shown in Table 2, and the test results are shown in Table 3. Table 2 (Note) The symbols in Table 3 have the following meanings. O is good (no peeling) Adhering oil can be easily removed with water. Therefore, if the oil for water pipe thread cutting of the present invention is used, no special cleaning operation is required after processing.
It is very economical.

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

添付の第1図は、本発明の水道管ねじ切り加工用油剤の
性能を試験す条ために使用した装置の概略説明図である
. 図において、lは試験片,2は水道水,3はスターラー
,4は2文容ビーカーを示す.出願人  ユシロ化学工
業株式会社
The attached Figure 1 is a schematic explanatory diagram of the equipment used to test the performance of the water pipe thread cutting oil of the present invention. In the figure, l indicates a test piece, 2 indicates tap water, 3 indicates a stirrer, and 4 indicates a 2-volume beaker. Applicant Yushiro Chemical Industry Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 鉱油および/または硫化鉱油、油性剤および極圧添加剤
を必須成分として添加した切削油剤において、ノニオン
系および/またはアニオン系の界面活性剤を5ないし3
0重量%含有し、40℃における動粘度が5ないし50
mm^2/secであることを特徴とする水道管ねじ切
り加工用油剤。
In cutting fluids containing mineral oil and/or sulfurized mineral oil, oiliness agents, and extreme pressure additives as essential components, 5 to 3 nonionic and/or anionic surfactants are added.
Contains 0% by weight and has a kinematic viscosity of 5 to 50 at 40°C.
An oil agent for thread cutting of water pipes, characterized in that it has a viscosity of mm^2/sec.
JP1052829A 1989-03-07 1989-03-07 Water-insoluble oil agent for threading water pipes Expired - Lifetime JPH0832906B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1052829A JPH0832906B2 (en) 1989-03-07 1989-03-07 Water-insoluble oil agent for threading water pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1052829A JPH0832906B2 (en) 1989-03-07 1989-03-07 Water-insoluble oil agent for threading water pipes

Publications (2)

Publication Number Publication Date
JPH02233798A true JPH02233798A (en) 1990-09-17
JPH0832906B2 JPH0832906B2 (en) 1996-03-29

Family

ID=12925737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1052829A Expired - Lifetime JPH0832906B2 (en) 1989-03-07 1989-03-07 Water-insoluble oil agent for threading water pipes

Country Status (1)

Country Link
JP (1) JPH0832906B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5942299A (en) * 1996-02-20 1999-08-24 Intertape Polymer Group, Inc. Bilayer adhesive system for reinforced strapping tape
JP2012197326A (en) * 2011-03-18 2012-10-18 Jx Nippon Oil & Energy Corp Lubricant composition for plastic working

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2010270A1 (en) * 1970-03-05 1971-09-23 Opti-Holding Ag, Glarus (Schweiz) Divisible zipper and method of assembling the elements of the divisibility mechanism
JPS52114853A (en) * 1976-03-22 1977-09-27 Neos Kk Admittance for water soluble metal working oil
JPS59147095A (en) * 1983-02-10 1984-08-23 Osaka Suiso Kogyo Kk Water-soluble cutting oil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2010270A1 (en) * 1970-03-05 1971-09-23 Opti-Holding Ag, Glarus (Schweiz) Divisible zipper and method of assembling the elements of the divisibility mechanism
JPS52114853A (en) * 1976-03-22 1977-09-27 Neos Kk Admittance for water soluble metal working oil
JPS59147095A (en) * 1983-02-10 1984-08-23 Osaka Suiso Kogyo Kk Water-soluble cutting oil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5942299A (en) * 1996-02-20 1999-08-24 Intertape Polymer Group, Inc. Bilayer adhesive system for reinforced strapping tape
JP2012197326A (en) * 2011-03-18 2012-10-18 Jx Nippon Oil & Energy Corp Lubricant composition for plastic working

Also Published As

Publication number Publication date
JPH0832906B2 (en) 1996-03-29

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