200946672 六、發明說明： 【發明所屬之技術領域】 本發明係關於精密沖裁加工所用之潤滑油組成物。 【先前技術】 精密沖裁加工中，與以往之衝鑽加工（punching processs)相比，由於工具-材料間之接觸時間長，發熱量 Φ 大等之加工條件甚爲苛刻，而對所使用之潤滑油要求嚴格 ，在許多場合則使用氯系油劑作爲潤滑油。但，此氯系油 劑’由對人體之安全性之觀點，潤滑油廢液燃燒時的大氣 污染等之觀點上，被指摘具有問題。 從以上之觀點，對於精密沖裁加工，探討有非氯系加 工油之使用。作爲非氯系加工油，一般而言以往之將冷鍛 油之黏度改變者則爲主流，例如專利文獻1中，係爲將典 型的冷锻油使用於精密沖裁加工之例，記載著包含含有活 Ο 性硫1 %以上之含硫化合物與高鹼性金屬磺酸鹽之衝鑽加 工用潤滑油組成物。又，於專利文獻2中，揭示出典型的 改良冷锻油，於基油添加了酯系油性劑之例。 又，雖非爲精密沖裁加工用，於專利文獻3中記載以 噻二唑衍生物作爲主成分之鐵系金屬材料的加工用潤滑油 組成物。 [專利文獻1]特開2003-25 3287號公報 [專利文獻2]特開2007-332307號公報 [專利文獻3]特開2003 -25 3 284號公報 200946672 【發明內容】 [發明所欲解決之課題] 然而，精密沖裁加工中，使用上述非氯系加工油之情 況，有模具壽命比使用氯系油劑時還短之情況，同時也有 對製品形狀產生不良影響之事。例如，上述專利文獻1記 載之潤滑油，雖然在極少部份的厚板之薄鐵系材料之加工 中也有顯示優越性，總體看來其加工性並不足夠，無法得 到以模具壽命作爲目標之生產量。又，模具受磨損之情況 時，製品會產生凹陷或毛邊，而使後處理步驟造成負荷。 又，如專利文獻2中，使用酯系油性劑之情況時則難 以得到與氯系油劑相匹敵之效果。更進一步，專利文獻3 之潤滑油，不適合於多種多樣之材料的加工’又若增加添 加量，會造成作業人員曝露於難以忍受之臭氣中。 由以上之問題點，本發明之目的在於提供一種精密沖 裁加工用潤滑油組成物，可得到適宜環境之非氯系加工油 ，與氯系油劑匹敵的模具壽命，且’可得達成良好之製品 形狀。 [用以解決課題之手段] 本發明係關於使用 (1) 配合活性硫化合物10〜50質量％及噻二哗衍生物2~10 質量％而成之精密沖裁加工用潤滑油組成物、及 (2) 配合活性硫化合物10〜50質量％及噻二哩衍生物2〜10 質量％而成之潤滑油組成物進行精密沖裁加工’及精密沖 f 200946672 裁加工方法。 [發明之效果] 依據本發明，可得到適宜環境之非氯系加工油，與氯 系油劑匹敵之模具壽命。 又’依據本發明’可達成製品形狀之高精度化，可得 到良好之製品形狀，可減少對後處理步驟之負荷。 Ο 更且’依據本發明’於高性能且低黏度潤滑油下的良 好加工則成爲可能，且可得到充份省能源效果。 【實施方式】 金屬加工，整體而言可解釋爲對模具形狀之被加工材 料的轉印。因此，爲了使成爲良好之製品形狀，必須保持 初期之模具狀態。特別係精密沖裁加工中，依據被加工材 料之凝著狀態或模具磨損，主控著剪切面形狀或凹陷。由 此觀點，進行詳細硏究之結果，得知模具磨損係因爲被加 工材料於加工時所發生之熱及因高面壓凝著於模具，其凝 著塊被搔落時，模具表面產生微小之損傷，而成爲磨損的 起點而產生磨損。 本發明者們，爲了減低模具磨損，模具之長壽命化， 即得到良好之製品，由防止對被加工材料之模具的凝著甚 爲有效之觀點，進行銳意硏究之結果，發現防止對被加工 材料之模具的凝著，活性硫化合物係爲有效，且藉由一倂 添加噻二唑衍生物，更可使其高性能化。 200946672 本發明係關於，配合活性硫化合物10〜50質量％及噻 二唑衍生物2〜10質量％而成之精密沖裁加工用潤滑油組 成物。 [精密沖裁加工用潤滑油組成物] (.活性硫化合物） 本發明中，活性硫化合物係指，於分子内含有活性硫 之化合物，只要係如此般之化合物則無特別限制可進行使 q 用，由防止對模具之凝著之觀點，將如此般之活性硫以 ASTM D 1 622爲準之測定下含有1質量％以上之化合物爲 佳，以含有3質量％以上之化合物爲更佳。又，對於活性 硫化合物，以銅板腐蝕試驗（JIS K2 513)中顯示3以上之活 性者可理想使用。 本發明中，作爲如此般之活性硫化合物，例如可舉出 多硫化物、硫化油脂、粉末狀硫、硫化礦油、硫化酯、硫 化烯烴等，此些可單獨或二種以上組合使用，由防止對模 q 具之凝著防止之觀點，以多硫化物、硫化油脂、粉末狀硫 爲佳。 由防止對模具的凝著及防止模具磨損之觀點，此些之 中，以多硫化物爲較佳，硫磺數爲3〜6、碳數爲12〜40之 多硫化物爲更佳。 厚板加工、大型零件加工等之發熱量爲多之加工條件 中，高黏度係爲必要之情況時，作爲活性硫化合物以使用 硫化油脂爲佳，將此與上述多硫化物組合使用爲佳，或也 -8- 200946672 可單獨使用。 又’粉末狀硫也可單獨使用，但由於對礦油等之基油 的溶解度低，且配合量受到限制，將多硫化物及/或硫化 油脂組合使用爲佳。 然而，於本發明中，爲了提升活性硫化合物之添加比 率，使用在對具有可得到良好之剪切面之優點的油脂系油 性劑中將上述粉末狀硫溶解所得之硫化油脂也爲佳。 上述活性硫化合物中，含有BU述活性硫之硫成分含量 係以多硫化物20質量％以上爲佳，又，硫化油脂8質量％ 以上爲佳。只要硫成分在上述範圍内，藉由調整活性硫化 合物之添加量，可容易達成防止對模具的凝著效果等。由 上述之觀點，活性硫化合物中之硫含量，以多硫化物 2 0〜40質量％爲較佳，硫化油脂8~30質量％爲更佳。 潤滑油組成物中之總硫含量，由防止對模具之凝著的 觀點，以2〜15質量％爲佳，更佳爲4~15質量％。 〇 上述活性硫化合物之潤滑油組成物中的含量，合計 10~50質量％。由防止對模具的凝著、臭氣爲少之觀點， 上述含量以10〜40質量％爲佳’ 1〇~35質量％爲更佳。特 別係，上述活性硫化合物係爲多硫化物之場合時’上述含 量，考慮到上述觀點及配合多量之活性硫化合物所成之潤 滑油組成物之4 0 °C動黏度降低’以1 0 ~ 3 0質量％爲佳’硫 化油脂之場合時，由上述觀點及抑制摩擦係數之上昇之觀 點，以5~15質量％爲佳，粉末狀硫之場合時’由上述觀 點及限制溶解度之觀點以〇.2~0·5質量％爲佳。 200946672 本發明之潤滑油組成物，以在銅板腐蝕試驗（JIS K25 13)中顯示3以上之活性者爲佳，由適用於各種材料之 觀點，顯示4以上之活性者爲更佳。作爲活性硫化合物， 以如具有如此般之銅板腐蝕試驗活性，選擇其種類、量等 使用爲佳。 (噻二唑衍生物） 作爲本發明之潤滑油組成物所用之噻二唑衍生物，可 使用 1，4,5-噻二唑、1，2,4-噻二唑、1,2,5-噻二唑、1，3,4-噻二唑之各個衍生物之任一，由提升加工性向上之觀點， 以於上述各個之構成噻二唑環之碳原子之至少一個上具 有- Sa-R基（R表示氫原子或烷基、a表示0~8之整數）者， 或2,5-雙（N，N-二烷基二胺硫甲醯基）-1,3,4-噻二唑爲佳。 作爲上述以R所表示之烷基，其碳數，由提升潤滑性 觀點，噻二唑1分子中全R基之合計成爲6 ~3 0者爲佳， 較佳爲上述碳數爲6~24者。又，a理想爲1~3，更理想爲 1或2之整數。 作爲上述烷基，具體而言，可舉出甲基’乙基，η -丙 基，異丙基，η-丁基，異丁基，sec-丁基’ tert-丁基’各 種戊基，各種己基，各種庚基，各種辛基，各種壬基，各 種癸基，各種十一基，各種十二基，十三基，十四基，十 五基’十六基，十七基，十八基，十九基’ 一十基等。 作爲噻二唑衍生物，由製品製造之簡便度，儲藏安定 性之觀點，在常溫下爲液體狀態者可理想使用，具體而言 -10- 200946672 ，可舉出2,5-雙（η-己基二硫代）-l，3,4-噻二唑、2,5-雙（n-辛基二硫代）-1,3，4 -噻二唑、2,5 -雙（η -壬基二硫代）-1，3，4-噻二唑、2,5 -雙（1,1,3,3 -四甲基丁基二硫代）-1，3，4 -噻二唑 、3,5-雙（11-己基二硫代）-1，2,4-噻二唑、3,5-雙（11-辛基二 硫代）-1,2,4-噻二唑、3,5-雙（!1-壬基二硫代）-1，2,4-噻二唑 、3,5-雙（1,1，3,3，-四甲基丁基二硫代）_1，2,4-噻二唑、 4,5-雙（η-己基二硫代）-1,2,3-噻二唑、4,5-雙（η-辛基二硫 代）-1,2,3 -噻二唑、4，5 -雙（η -壬基二硫代）-1，2,3 -噻二唑、 4，5 -雙（1,1,3,3 -四甲基丁基二硫代）-1，2,3 -噻二唑等之烷基 噻二唑類。 又，也可使用2,5-二锍基-1,3,4 -噻二唑、3，5-二锍基-1,2,4-噻二唑、3,4-二锍基-1,2,5-噻二唑、4,5-二锍基-1，2,3-噻二唑等之二锍基噻二唑類。更進一步，也可使用 此些之混合物。 上述唾二唑衍生物，於本發明之潤滑油組成物中含有 2~1〇質量。/〇。上述含量’由提升加工性向上’無臭等之觀 點，以3〜10質量％爲佳，以3〜8質量％爲更佳。 本發明中，對於上述活性硫化合物與噻二唑衍生物之 含量比（活性硫化合物含量/噻二唑衍生物含量）並無特別限 制，由減少年模具磨損之效果、提升模具壽命之觀點’以 質量比1〜25爲佳，較佳爲1〜20，更佳爲1〜1〇’最佳爲 1. 3 〜1 0 〇 (油性劑） -11 - 200946672 本發明之潤滑油組成物，除上述活性硫化合物與噻二 唑衍生物，由減少剪切面之粗度等之觀點，以含有油脂類 或高分子量酯類、此些混合物等之油性劑爲佳。 作爲上述油脂類，較佳使用例如大豆、亞麻仁、油菜 子、橄欖、棕櫚等之植物油、牛脂或豬油等之動物油等。 又，作爲高分子量酯類，較佳使用山梨糖醇酯或季戊四醇 酯類，由防止低溫時之析出或沈澱之觀點，本發明中，此 些之中以油酸酯爲佳。本發明，以使用由選自上述動植物 油脂、山梨糖醇酯及季戊四醇酯之至少2種作爲主成分之 混合物爲佳。 上述油性劑之潤滑油組成物中的含量並無特別限制， 由減少剪切面之粗度，容易調整潤滑油組成物的黏度之觀 點，以20〜60質量％爲佳，更佳爲20〜50質量％。 (基油及其他之添加劑） 對使用之基油並無特別限制，可使用通常加工油所使 用之任一者，例如可舉出礦油、合成油及高分子化合物等 。作爲上述礦油，可使用許多種類，一般係使用4 0 °C中動 黏度爲 1〜1000mm2/s，特別係爲 2~5 00mm2/s者。作爲此 般之礦油，可舉許多種類。例如石蠟基系原油，將中間基 系原油或環烷基系原油常壓蒸餾，或將常壓蒸餾之殘渣油 減壓蒸餾所得之餾出油，或藉由將此依循常法精製所得之 精製油，例如可舉出溶劑精製油，加氫精製油，脫蠘處理 油，白土處理油等。 -12- 200946672 又，作爲合成油，例如可使用碳數8〜14之聚-α-儲烴 ’烯烴共聚物（例如，乙烯-丙烯共聚物等），或聚丁稀， 聚丙烯等之分歧烯烴或此些氫化物，更也可使用聚醇醋（ 三羥甲丙烷之脂肪酸酯，季戊四醇之脂肪酸酯等）或二鹽 基酯等之酯系化合物、烷基苯等。 作爲高分子化合物，可舉出烴系高分子化合物或含氧 系高分子化合物’以l〇〇°C中動黏度在10〜8000mm2/S之 Φ 範圍者爲佳。作爲此般之高分子化合物，例如可舉出聚烯 烴、聚丁烯、聚異丁烯、聚亞烷基二醇、聚甲基丙烯酸酯 、烯烴共聚物（例如、乙烯-丙烯共聚物、苯乙烯-丁二烯 共聚物、苯乙烯-異戊二烯共聚物等）等。 此些之礦油、合成油、高分子化合物可單獨使用，亦 可二種以上組合使用。 本發明中，爲了維持潤滑油的基本性能，在不阻礙本 發明之目的的範圍內，除前述以外之極高壓劑、前述油性 〇 劑，也可適宜配合耐磨損劑、黏度調整劑、分散劑、防腐 劑、抗氧化劑、消泡劑等之公知的添加劑。此些添加劑之 全體配合量，相對於潤滑油組成物，以在0.01 ~5質量％之 範圍爲佳。 猶，本發明中，因磺酸鈣或磷系極高壓劑等有顯著提 升摩擦係數之情況，對於本發明之效果產生影響之範圍中 ，以實質上不含有爲佳。即，潤滑油組成物中以完全不含 有此些爲更佳，只要係不影響本發明之目的、效果，例如 可在5質量％以下之範圍內使用。 -13- 200946672 (潤滑油組成物） 關於本發明之潤滑油組成物的動黏度無特別限制，於 40 °C中在30〜260mm2/s之範圍爲佳。若動黏度在上述範圍 ，其加工性良好，由引火性等之觀點也可確保其安全性， 又由塗佈方法之限制或省能源之觀點也爲理想。由此觀點 ，上述動黏度以50~250mm2/s爲更佳。 本發明之潤滑油組成物可理想使用於精密沖裁加工、 例如精密衝鑽加工等，又，其適宜之被加工材料並無受限 定可適宜使用。作爲可理想適用於本發明之潤滑油組成物 的被加工材料，可舉出以不銹鋼、合金鋼、碳鋼、鋁合金 等爲佳’本發明中，在不錄鋼、合金鋼更可得到理想之效 果。本發明之精密沖裁加工中，上述被加工材料之形狀、 厚度無特別限制，也可適用於多種之被加工材料的形狀、 板厚’厚度爲1〜30mm’理想者爲厚度2~25mm左右之厚 度的加工材料中，可有效地發揮其效果。 [精密沖裁加工方法] 本發明之精密沖裁加工方法係爲，配合活性硫化合物 10〜50質量。/。及噻二唑衍生物2〜10質量％而成之潤滑油組 成物進行精密沖裁加工者。 關於潤滑油組成物，如前述般。本發明係爲，使用上 述潤滑油組成物，作爲前述加工材料則使用精密沖裁用模 具’例如進行衝鑽加工等之精密剪切加工者，作爲加工條 件，可適用通常之精密沖裁加工條件適用，可依據其用途 -14- 200946672 適當選擇。 [實施例] 接著以實施例具體說明本發明，但本發明係並不受限 於此些例者。 [精密沖裁加工條件] ❹ .加壓機：森鐵工製加壓機（400t) •被加工材料：S45C(板厚 4mm) •模具：精密沖裁専用模具（日立金屬製H AP-5R) •加工零件形狀：變形星型形狀（35Lx40Wx4tmm) •加工速度：25SPM •潤滑油塗佈方法：輥塗法 •加工數量：10000出射 •評價項目：1 0000個加工後之主沖壓及鑄模之狀態觀察 ❹ (SEM觀察）、製品形狀觀察（剪切面粗度、有無二次剪切 面、毛邊局度、凹陷量） [各性質狀態之評價] .動黏度：依據JIS K228 3進行測定。 •工具磨損：測定主沖壓側面部之尺寸減少量（μ m)，將 此作爲磨損量。 •工具缺損（Chipping):測定主沖壓底部產生之鑿平部之 面積，評價相對於底面積之面積比（％)。 -15- 200946672 •毛邊高度：對1 0000個加工後之製品，測定最大毛邊高 度（mm)。 •剪切面粗度：對1 0000個加工後之製品，以使用粗度計 測定之Ra(// m)進行評價。 •二次剪切面：對加工後之有無二次剪切面之發生進行評 價。 •凹陷量：對1 〇〇〇〇個加工後之製品，將製品由側面觀察 ，測定由凹陷之起點至剪切部之距離（mm)。 [使用添加劑] •多硫化物：Elf AtChem Japan 製 TPS32(二-t -十二院基 多硫化物（硫磺數5))、硫成分29.8質量％(活性） •硫化油脂：大日本油墨製硫化豬油，硫成分9.5質量％( 活性） •粉末狀硫：東興商事粉末狀硫（活性） .噻二唑衍生物：大日本油墨製Dyeloop R-100(2,5-雙一 (η-壬基二硫代）-1·3.4-唾二唑）、硫成分33.5質量％(惰性） •油性劑混合物：出光興產製（油菜子油90質量％、橄欖 油7質量％、棕櫚油2質量％、山梨醇酐油酸酯1質量％ 混合物） • Ca磺酸鹽：WITCO製Bryton C-500，硫成分1.0質量 %(惰性） ♦氯化石蠟：東洋曹達製TOYOPARACS A50 .Zn-DTP : Oronite Japan 製 0L0A 267、硫成分 15.0 質 200946672 量％(惰性） 系礦油 •礦油：出光興產股份公司製石® 實施例1 .物、油性劑、礦油以如 到 40 °c中之動黏度爲 •油以上述方法進行評價 將上述多硫化物、噻二唑衍4 表1-1所示之量進行混合，得 8 9mm2/s之潤滑油。將所得之潤 各加工〖生會1:1。結果如表1 - 1所示。 實施例2〜9 組成製成如表1 - 1所示 有如表1 -1所示之動黏 與實施例1相同地進行 如實施例1，除了將各潤滑拍 般以外其他相同進行，得到各個| 度之潤滑油。對所得之各潤滑油， 加工性能評價，結果如表id所开 〇 -17- 200946672 [表i] 表1-1 mm 1 2 3 4 5 6 7 8 9 組成 多硫化物 10 20 30 15 10 15 10 10 硫化油脂 5 10 15 15 粉末狀硫 0.5 噻二唑衍生物 5 4 3 4 8 6 10 4 5 油性劑 20 25 25 30 20 40 30 25 25 氯化石蠟 Ca磺酸鹽 Zn-DTP 1 1 1 礦油 65 51 41 46 52 24 50 59.5 54 性質 狀態 40°C 動黏度[mm2/s] 89 125 140 160 200 242 67 120 180 硫分[wt%] 3.9 8.7 11.2 6.2 5.7 8.3 4.7 5.4 2.7 加工性 評價 工具磨耗損[μιη] 147 124 113 117 128 131 115 102 134 工具缺損(Chipping)[面 積％] 4.5 3.2 1.5 2.1 2.8 2.4 3.9 1.8 1.6 毛邊高度[mm] 1.24 1.10 0.98 0.87 0.96 0.82 0.89 0.79 0.94 剪切面粗度Rabm] 1.8 1.4 1.1 1.2 1.1 1.2 1.4 1.3 1.4 有無二次剪切面 te j\w Μ Μ /\\s 姐 Μ ^τττ 無 紐 Λπτ /\\\ 姐 ·Μ\、 凹陷[mm] 0.31 0.29 0.28 0.30 0.29 0.29 0.27 0.28 0.28 比較例1〜5 如實施例1，除了將潤滑油組成替代爲如表1 -2所示 以外其他相同進行，得到各個具有如表1 -2所示之動黏度 的潤滑油。對所得之各潤滑油，與實施例1相同進行對各 加工性能分別進行評價。其評價結果如表1 -2。 尙，於此，比較例1係以代表性的氯系精密沖裁加工 油之日本工作油製F B Η -1 0 S作爲潤滑油使用之例，比較 -18- 200946672 例2係爲使用與特開2003-253287號公報（專利文獻1)所 記載之實施例3相同之方法調製之潤滑油之例’比較例3 係依據特開2003-25 3 284號公報（專利文獻3)不使用多硫 化物而單獨使用噻二唑衍生物之例，比較例4，其中噻二 唑衍生物之添加量係爲本發明之範圍外之例’比較例5係 不使用噻二唑衍生物而單獨使用多硫化物之例。 ❿[表2] 表1-2 匕較例 1 2 3 4 5 組成 多硫化物 8 硫化油脂 10 15 粉末狀硫 噻二唑衍生物 30 1 油性劑 10 20 25 氯化石蠟 30 Ca磺酸鹽 10 Zn-DTP 20 礦油 70 60 60 64 67 性質 狀態 40°C 動黏度[mm2/s] 200 110 107 160 120 硫分[wt%] 0.38 3.2 2.8 2.4 1.8 工具磨損["m] 112 283 267 251 342 工具缺損(Chipping)[面積％] 1.9 14.7 12.3 3.8 19.4 加工 性評 價 毛邊高度[mm] 0.43 3.72 3.15 2.96 4.02 剪切面粗度Ra[#m] 1.2 3.4 3.3 3.1 4.3 有無二次剪切面 y \ \n 有 4πτ. m 有 有 凹陷[mm] 0.28 0.37 0.29 0.31 0.37 使用本發明之潤滑油組成物的實施例，相對於皆爲使 -19- 200946672 用氯系加工油比較例1雖顯示同等之加工性能’但比較例 2〜5皆顯示比比較例1拙劣之加工性能。 實施例1 0〜1 3 實施例4中，除了將被加工材料替代爲如表2所示般 以外，其他相同地進行加工性能之評價，其結果如表2所 不 。200946672 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a lubricating oil composition for precision blanking. [Prior Art] In precision punching, compared with the conventional punching process, the processing conditions are extremely harsh due to the long contact time between the tool and the material, and the processing conditions are very harsh. Lubricating oil is required to be strict, and in many cases, a chlorine-based oil is used as the lubricating oil. However, this chlorine-based oil agent has a problem from the viewpoint of safety of the human body, air pollution when the lubricating oil waste liquid is burned, and the like. From the above point of view, the use of non-chlorinated processing oils is discussed for precision blanking. In the conventional non-chlorinated processing oil, the viscosity of the cold forging oil is changed in the past. For example, in Patent Document 1, a typical cold forging oil is used for precision punching, and the description includes A lubricating oil composition for drilling processing containing a sulfur-containing compound having more than 1% of active sulfur and an overbased metal sulfonate. Further, Patent Document 2 discloses a typical modified cold forged oil in which an ester-based oily agent is added to a base oil. In addition, in the patent document 3, a lubricating oil composition for processing an iron-based metal material containing a thiadiazole derivative as a main component is described. [Patent Document 1] JP-A-2007-332307 [Patent Document 3] JP-A-2003-332307 (Patent Document 3) JP-A-2003-25 No. 284-A No. 200946672 [Summary of the Invention] Problem] However, in the case of using the non-chlorine-based processing oil in the precision punching, the life of the mold is shorter than when the chlorine-based oil is used, and the shape of the product is adversely affected. For example, the lubricating oil described in Patent Document 1 exhibits superiority in processing a very small portion of a thin iron-based material of a thick plate, and overall, the workability is not sufficient, and it is impossible to obtain a target for mold life. Production. Moreover, when the mold is worn, the product may have depressions or burrs, which may cause a load in the post-processing step. Further, in the case of using an ester-based oily agent in Patent Document 2, it is difficult to obtain an effect comparable to that of a chlorine-based oil agent. Further, the lubricating oil of Patent Document 3 is not suitable for the processing of a wide variety of materials, and if the amount of addition is increased, the operator is exposed to an unbearable odor. In view of the above problems, an object of the present invention is to provide a lubricating oil composition for precision blanking processing, which can obtain a non-chlorine-based processing oil suitable for the environment, and a mold life comparable to that of a chlorine-based oil agent, and can be achieved well. The shape of the product. [Means for Solving the Problem] The present invention relates to a lubricant composition for precision punching processing using (1) 10 to 50% by mass of an active sulfur compound and 2 to 10% by mass of a thiadiazine derivative, and (2) A precision lubricating process is carried out by blending a lubricating oil composition of 10 to 50% by mass of an active sulfur compound and 2 to 10% by mass of a thiadipine derivative, and a precision punching method. [Effects of the Invention] According to the present invention, it is possible to obtain a mold-free life in which a non-chlorine-based processing oil in an appropriate environment is compatible with a chlorine-based oil agent. Further, according to the present invention, the shape of the product can be made highly precise, a good product shape can be obtained, and the load on the post-processing step can be reduced. Further, and according to the present invention, good processing under high performance and low viscosity lubricating oil is possible, and a sufficient energy saving effect can be obtained. [Embodiment] Metal working can be interpreted as a transfer of a material to be processed in a mold shape as a whole. Therefore, in order to make a good product shape, it is necessary to maintain the initial mold state. In particular, in the precision blanking process, the shape or depression of the shearing surface is mainly controlled depending on the condensed state of the material to be processed or the wear of the mold. From this point of view, as a result of detailed investigation, it is found that the mold wear is caused by the heat generated during the processing of the material to be processed and the high surface pressure is condensed on the mold, and the condensed block is slumped, and the surface of the mold is minute. The damage is the starting point of wear and wear. The inventors of the present invention have found that it is possible to reduce the wear of the mold and to extend the life of the mold, that is, to obtain a good product, and to prevent the condensing of the mold of the material to be processed. The coagulation of the mold of the processed material is effective for the active sulfur compound, and the thiadiazole derivative is added in one turn to further improve the performance. 200946672 The present invention relates to a lubricating oil composition for precision blanking processing in which 10 to 50% by mass of the active sulfur compound and 2 to 10% by mass of the thiadiazole derivative are blended. [Pressure Lubricating Oil Composition for Precision Blanking] (Active Sulfur Compound) In the present invention, the active sulfur compound means a compound containing active sulfur in the molecule, and as long as the compound is such a compound, it is not particularly limited. From the viewpoint of preventing the condensation of the mold, it is preferable that the active sulfur is contained in an amount of 1% by mass or more based on ASTM D 1 622, and more preferably 3% by mass or more. Further, the active sulfur compound is preferably used in an aluminum plate corrosion test (JIS K2 513) showing an activity of 3 or more. In the present invention, examples of the active sulfur compound include a polysulfide, a sulfurized fat, a powdered sulfur, a sulfide mineral oil, a sulfurized ester, and a sulfurized olefin. These may be used alone or in combination of two or more. It is preferable to prevent polysulfide, sulfurized fat, and powdered sulfur from the viewpoint of preventing the condensation of the mold. From the viewpoint of preventing the coagulation of the mold and preventing the mold from being worn, among these, a polysulfide is preferable, and a polysulfide having a sulfur number of 3 to 6 and a carbon number of 12 to 40 is more preferable. In the processing conditions of thick plate processing and large-scale parts processing, when high viscosity is necessary, it is preferable to use sulfurized fat as the active sulfur compound, and it is preferable to use it in combination with the above polysulfide. Or also -8- 200946672 can be used alone. Further, the powdered sulfur may be used singly. However, since the solubility in the base oil such as mineral oil is low and the amount of the base oil is limited, it is preferred to use a combination of a polysulfide and/or a sulfurized fat. However, in the present invention, in order to increase the ratio of addition of the active sulfur compound, it is also preferred to use a sulfurized fat obtained by dissolving the above powdery sulfur in an oil-based oily agent having an advantage of obtaining a good shearing surface. In the above-mentioned active sulfur compound, the content of the sulfur component containing the active sulfur in the BU is preferably 20% by mass or more of the polysulfide, and more preferably 8% by mass or more of the sulfurized fat. When the sulfur component is within the above range, by adjusting the amount of the active sulfur compound added, it is possible to easily achieve a condensing effect against the mold. From the above viewpoints, the sulfur content in the active sulfur compound is preferably from 20 to 40% by mass of the polysulfide, and more preferably from 8 to 30% by mass based on the sulfurized fat. The total sulfur content in the lubricating oil composition is preferably from 2 to 15% by mass, more preferably from 4 to 15% by mass, from the viewpoint of preventing condensation on the mold.含量 The content of the lubricating oil composition of the above active sulfur compound is 10 to 50% by mass in total. From the viewpoint of preventing aggregation of the mold and odor, the content is preferably from 10 to 40% by mass, preferably from 1% to 35% by mass. In particular, when the above-mentioned active sulfur compound is a polysulfide, the above content is considered to be the above-mentioned viewpoint and the 40 °C dynamic viscosity of the lubricating oil composition formed by mixing a large amount of the active sulfur compound is reduced by 10~ When the content of 30% by mass is good, the vulcanized fat is preferably from 5 to 15% by mass from the viewpoint of the above-mentioned viewpoint and the increase in the friction coefficient, and in the case of powdered sulfur, from the viewpoint of the above viewpoint and the limitation of solubility. 〇.2~0·5 mass% is preferred. 200946672 The lubricating oil composition of the present invention preferably exhibits an activity of 3 or more in a copper plate corrosion test (JIS K25 13), and more preferably exhibits an activity of 4 or more from the viewpoint of being suitable for various materials. As the active sulfur compound, it is preferred to use such a type, amount, and the like in order to have such a copper plate corrosion test activity. (thiadiazole derivative) As the thiadiazole derivative used in the lubricating oil composition of the present invention, 1,4,5-thiadiazole, 1,2,4-thiadiazole, 1,2,5 can be used. - any of the respective derivatives of thiadiazole and 1,3,4-thiadiazole having - Sa on at least one of the carbon atoms constituting each of the above thiadiazole rings from the viewpoint of improving workability upward -R group (R represents a hydrogen atom or an alkyl group, a represents an integer of 0 to 8), or 2,5-bis(N,N-dialkyldiaminethiomethane)-1,3,4- Thiadiazole is preferred. The alkyl group represented by R is preferably a carbon number of from 6 to 30 in terms of the total lubricity of the thiadiazole molecule, and the carbon number is from 6 to 24. By. Further, a is preferably 1 to 3, more preferably 1 or 2. Specific examples of the alkyl group include methyl 'ethyl, η-propyl, isopropyl, η-butyl, isobutyl, sec-butyl 'tert-butyl' various pentyl groups. Various hexyl groups, various heptyl groups, various octyl groups, various sulfhydryl groups, various sulfhydryl groups, various eleven bases, various twelve bases, thirteen bases, fourteen bases, fifteen bases 'hexadecyl groups, seventeen bases, ten Eight bases, nineteen bases, ten bases, etc. The thiadiazole derivative is preferably used in the liquid state at a normal temperature from the viewpoint of ease of production and storage stability. Specifically, -10-200946672, 2,5-double (η- Hexyldithio)-l,3,4-thiadiazole, 2,5-bis(n-octyldithio)-1,3,4-thiadiazole, 2,5-bis(η-壬Dithio)-1,3,4-thiadiazole, 2,5-bis(1,1,3,3-tetramethylbutyldithio)-1,3,4-thiadiazole, 3,5-bis(11-hexyldithio)-1,2,4-thiadiazole, 3,5-bis(11-octyldithio)-1,2,4-thiadiazole, 3 ,5-bis(!1-mercaptodithio)-1,2,4-thiadiazole, 3,5-bis(1,1,3,3,-tetramethylbutyldithio)_1 , 2,4-thiadiazole, 4,5-bis(η-hexyldithio)-1,2,3-thiadiazole, 4,5-bis(η-octyldithio)-1, 2,3-thiadiazole, 4,5-bis(η-mercaptodithio)-1,2,3-thiadiazole, 4,5-bis(1,1,3,3-tetramethyl Alkylthiadiazoles such as butyldithio)-1,2,3-thiadiazole. Further, 2,5-dimercapto-1,3,4-thiadiazole, 3,5-dimercapto-1,2,4-thiadiazole, 3,4-dimercapto-1 can also be used. a dimercaptothiadiazole such as 2,5-thiadiazole or 4,5-dimercapto-1,2,3-thiadiazole. Further, a mixture of these can also be used. The above salatazole derivative contains 2 to 1 part by mass in the lubricating oil composition of the present invention. /〇. The above content is preferably from 3 to 10% by mass, more preferably from 3 to 8% by mass, from the viewpoint of improving workability and upward odorlessness. In the present invention, the content ratio of the active sulfur compound to the thiadiazole derivative (the content of the active sulfur compound/the content of the thiadiazole derivative) is not particularly limited, and the effect of reducing the wear of the mold and the life of the mold is improved. Preferably, the mass ratio is from 1 to 25, preferably from 1 to 20, more preferably from 1 to 1 Torr, and most preferably from 1. 3 to 1 0 〇 (oily agent) -11 - 200946672 The lubricating oil composition of the present invention, In addition to the above-mentioned active sulfur compound and thiadiazole derivative, an oily agent containing a fat or oil, a high molecular weight ester, or the like is preferable from the viewpoint of reducing the thickness of the sheared surface and the like. As the fats and oils, for example, vegetable oil such as soybean, linseed, rapeseed, olive, palm, or the like, animal oil such as tallow or lard, or the like is preferably used. Further, as the high molecular weight ester, sorbitol ester or pentaerythritol ester is preferably used, and from the viewpoint of preventing precipitation or precipitation at a low temperature, in the present invention, oleic acid ester is preferred among these. In the present invention, it is preferred to use a mixture of at least two selected from the group consisting of the above-mentioned animal and vegetable fats and oils, sorbitol esters and pentaerythritol ester as a main component. The content of the lubricating oil composition of the oily agent is not particularly limited. From the viewpoint of reducing the thickness of the shearing surface and easily adjusting the viscosity of the lubricating oil composition, it is preferably 20 to 60% by mass, more preferably 20%. 50% by mass. (Base oil and other additives) The base oil to be used is not particularly limited, and any of the conventional processing oils can be used, and examples thereof include mineral oil, synthetic oil, and polymer compound. As the above-mentioned mineral oil, many types can be used, and generally, the dynamic viscosity at 40 ° C is 1 to 1000 mm 2 /s, particularly 2 to 500 mm 2 /s. As such a mineral oil, many types can be mentioned. For example, a paraffin-based crude oil, an intermediate-base crude oil or a naphthenic-based crude oil is subjected to atmospheric distillation, or a distillate oil obtained by subjecting atmospheric residue distillation oil to distillation under reduced pressure, or a refined product obtained by subjecting the conventional method to purification. Examples of the oil include solvent-refined oil, hydrotreated oil, deodorized oil, and clay treated oil. -12- 200946672 Further, as the synthetic oil, for example, a poly-α-storage hydrocarbon olefin copolymer having a carbon number of 8 to 14 (for example, an ethylene-propylene copolymer or the like), or a difference of polybutylene, polypropylene, or the like can be used. As the olefin or such a hydride, an ester compound such as a polyalcohol (a fatty acid ester of trimethylolpropane or a fatty acid ester of pentaerythritol) or a dibasic ester, an alkylbenzene or the like can be used. The polymer compound is preferably a hydrocarbon polymer compound or an oxygen-containing polymer compound ’ in which the dynamic viscosity at 10 ° C is in the range of 10 to 8000 mm 2 /s Φ. Examples of such a polymer compound include polyolefin, polybutene, polyisobutylene, polyalkylene glycol, polymethacrylate, and olefin copolymer (for example, ethylene-propylene copolymer, styrene- Butadiene copolymer, styrene-isoprene copolymer, etc.). These mineral oils, synthetic oils, and polymer compounds may be used singly or in combination of two or more. In the present invention, in order to maintain the basic performance of the lubricating oil, in addition to the above, the extremely high pressure agent and the oily tanning agent may be suitably blended with an antiwear agent, a viscosity adjuster, and dispersed. A known additive such as a preservative, a preservative, an antioxidant, an antifoaming agent or the like. The total blending amount of these additives is preferably in the range of 0.01 to 5% by mass based on the lubricating oil composition. In the present invention, the calcium sulfonate or the phosphorus-based ultra-high pressure agent may have a significant increase in the friction coefficient, and it is preferable that it does not substantially contain the influence on the effect of the present invention. In other words, the lubricating oil composition is preferably contained in the range of not more than 5% by mass, as long as it does not affect the object and effect of the present invention. -13- 200946672 (Lubricating oil composition) The dynamic viscosity of the lubricating oil composition of the present invention is not particularly limited, and is preferably in the range of 30 to 260 mm 2 /s at 40 °C. When the dynamic viscosity is in the above range, the workability is good, and the safety can be ensured from the viewpoint of ignitability, etc., and it is also desirable from the viewpoint of coating method limitation or energy saving. From this point of view, the above-mentioned dynamic viscosity is preferably 50 to 250 mm 2 /s. The lubricating oil composition of the present invention can be suitably used for precision punching, for example, precision punching, and the like, and suitable materials to be processed are not limited and can be suitably used. The material to be processed which can be suitably applied to the lubricating oil composition of the present invention is preferably stainless steel, alloy steel, carbon steel, aluminum alloy or the like. In the present invention, it is preferable to obtain no steel or alloy steel. The effect. In the precision blanking process of the present invention, the shape and thickness of the material to be processed are not particularly limited, and can be applied to various shapes of the material to be processed, and the thickness of the material to be processed is 1 to 30 mm. The thickness is preferably 2 to 25 mm. The processed material of the thickness can effectively exhibit its effect. [Precision blanking processing method] The precision blanking processing method of the present invention is to blend the active sulfur compound with a mass of 10 to 50. /. And a lubricating oil composition comprising 2 to 10% by mass of a thiadiazole derivative, which is subjected to precision blanking. Regarding the lubricating oil composition, as described above. In the present invention, the lubricating oil composition is used, and as the processing material, a precision blanking die such as a punching process is used, and as a processing condition, a normal precision punching processing condition can be applied. Applicable, can be selected according to its use -14-200946672. [Examples] Next, the present invention will be specifically described by way of examples, but the present invention is not limited thereto. [Precision blanking processing conditions] 加压 Pressing machine: Mori Iron Works Press (400t) • Material to be processed: S45C (plate thickness 4mm) • Mold: Precision punching die (HAP-5R made of Hitachi Metals) • Shape of machined part: Deformed star shape (35Lx40Wx4tmm) • Processing speed: 25SPM • Lubricating oil coating method: Roll coating method • Number of processing: 10000 shots • Evaluation items: 1 000 main stamping and mold states after processing Observation ❹ (SEM observation), product shape observation (shear surface roughness, presence or absence of secondary shear surface, burr strength, and amount of depression) [Evaluation of each property state] Dynamic viscosity: Measured in accordance with JIS K228 3. • Tool wear: Determine the amount of reduction in size (μ m) of the side portion of the main press, and use this as the amount of wear. • Chipping: The area of the flat portion produced at the bottom of the main punch is measured, and the area ratio (%) with respect to the bottom area is evaluated. -15- 200946672 • Burr Height: For the 1 000 processed products, the maximum burr height (mm) is measured. • Shear surface roughness: For 1 000 processed products, the Ra (// m) measured using a roughness meter was evaluated. • Secondary shear plane: Evaluate the occurrence of secondary shear plane after processing. • Depression amount: For 1 加工 processed product, the product is viewed from the side, and the distance (mm) from the starting point of the depression to the shearing portion is measured. [Use Additives] • Polysulfide: Tef32 manufactured by Elf AtChem Japan (di-t - 12-yard polysulfide (sulfur number 5)), sulfur component 29.8% by mass (active) • Sulfurized fat: Sulfur cured by Dainippon Ink Lard, sulfur component 9.5 mass% (active) • Powdered sulfur: Dongxing commercial powdered sulfur (active). Thiadiazole derivative: Dyeloop R-100 made by Dainippon Ink (2,5-double one (η-壬) Dithio)-1·3.4-saladiazole), sulfur component 33.5 mass% (inert) • Oily agent mixture: Idemitsu Kosan (90% by mass of rapeseed oil, 75% by mass of olive oil, 2 mass of palm oil) %, sorbitan oleate 1% by mass mixture) • Ca sulfonate: Bryton C-500 manufactured by WITCO, 1.0% by mass sulfur (inert) ♦ Chlorinated paraffin: TOYOPARACS A50 from Toyo Soda. Zn-DTP : Oronite Japan 0L0A 267, sulfur content 15.0 quality 200946672 quantity % (inert) oleing oil • mineral oil: Idemitsu Trading Co., Ltd. Shishi® Example 1. The oil, mineral oil, and oil in the case of 40 °c Viscosity is • Oil is evaluated by the above method. The above polysulfide, thiadiazole derivative 4 Table 1-1 The mixing amount to give 8 9mm2 / s of the lubricating oil. The resulting processing will be 1:1. The results are shown in Table 1-1. Examples 2 to 9 Compositions shown in Table 1-1 were obtained in the same manner as in Example 1 except that the dynamic adhesives shown in Table 1-1 were carried out in the same manner as in Example 1, except that each of the lubrication shots was carried out in the same manner. | Degree of lubricants. For each of the obtained lubricating oils, the processing performance was evaluated. The results are shown in Table id -17- 200946672 [Table i] Table 1-1 mm 1 2 3 4 5 6 7 8 9 Composition polysulfide 10 20 30 15 10 15 10 10 Sulfurized fat 5 10 15 15 Powdered sulfur 0.5 Thiadiazole derivative 5 4 3 4 8 6 10 4 5 Oily agent 20 25 25 30 20 40 30 25 25 Chlorinated paraffin Ca sulfonate Zn-DTP 1 1 1 Mineral oil 65 51 41 46 52 24 50 59.5 54 Property state 40 °C Dynamic viscosity [mm2/s] 89 125 140 160 200 242 67 120 180 Sulfur content [wt%] 3.9 8.7 11.2 6.2 5.7 8.3 4.7 5.4 2.7 Processability evaluation Tool Wear Loss [μιη] 147 124 113 117 128 131 115 102 134 Tool Defect (Chipping) [Area%] 4.5 3.2 1.5 2.1 2.8 2.4 3.9 1.8 1.6 Flange Height [mm] 1.24 1.10 0.98 0.87 0.96 0.82 0.89 0.79 0.94 Shear Plane Roughness Rabm] 1.8 1.4 1.1 1.2 1.1 1.2 1.4 1.3 1.4 With or without secondary shear plane te j\w Μ Μ /\\s Sister Μ ^τττ No Λπτ /\\\ Sister Μ\, dent [mm] 0.31 0.29 0.28 0.30 0.29 0.29 0.27 0.28 0.28 Comparative Examples 1 to 5 As in Example 1, except that the lubricating oil was composed Instead of the same as shown in Table 1-2, each of the lubricating oils having the dynamic viscosity as shown in Table 1-2 was obtained. Each of the obtained lubricating oils was evaluated in the same manner as in Example 1 for each of the workability. The evaluation results are shown in Table 1-2.尙 尙 于此 于此 比较 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 -18 An example of a lubricating oil prepared by the same method as in the third embodiment described in the above-mentioned Japanese Patent Publication No. 2003-253287 (Patent Document 1) is a non-vulcanized one. An example of using a thiadiazole derivative alone, Comparative Example 4, wherein the amount of the thiadiazole derivative added is outside the scope of the present invention. 'Comparative Example 5 is used alone without using a thiadiazole derivative. An example of a sulfide. ❿[Table 2] Table 1-2 匕Comparative Example 1 2 3 4 5 Composition Polysulfide 8 Sulfurized fat 10 15 Powdered thiadiazole derivative 30 1 Oily agent 10 20 25 Chlorinated paraffin 30 Ca sulfonate 10 Zn-DTP 20 mineral oil 70 60 60 64 67 Property state 40 °C Dynamic viscosity [mm2/s] 200 110 107 160 120 Sulfur content [wt%] 0.38 3.2 2.8 2.4 1.8 Tool wear ["m] 112 283 267 251 342 Tool Chipping [Area%] 1.9 14.7 12.3 3.8 19.4 Machinability evaluation Burr height [mm] 0.43 3.72 3.15 2.96 4.02 Shear surface roughness Ra[#m] 1.2 3.4 3.3 3.1 4.3 With or without secondary shear plane y \ \n has 4πτ. m has a depression [mm] 0.28 0.37 0.29 0.31 0.37 The examples of using the lubricating oil composition of the present invention are the same as those of the comparative example 1 of the chlorine-based processing oil of -19-200946672. The processing properties were obtained, but Comparative Examples 2 to 5 all showed inferior processing properties compared with Comparative Example 1. [Example 1] 0 to 1 3 In Example 4, the workability was evaluated in the same manner as in Table 2 except that the material to be processed was replaced, and the results are shown in Table 2.
[表3] 表2 實施例 10 11 12 13 被加工 材料 種類 SUS304 A3003 SAPH440 SK3 板厚[_ 4 6 4 3 加工 性評價 工具磨損[//m] 187 12 132 171 工具缺損(Chipping)圆積％] 6.4 0.8 3.1 5.2 毛邊高度[mm] 2.11 0.13 1.21 0.54 剪切面粗度Ra[//m] 3.8 4.6 2.2 3.5 有無—次剪切面有無 te te j\\\ 凹陷[mm] 0.47 0.19 0.32 0.20[Table 3] Table 2 Example 10 11 12 13 Material type SUS304 A3003 SAPH440 SK3 Thickness [_ 4 6 4 3 Processability evaluation tool wear [//m] 187 12 132 171 Tool defect (Chipping) round product % 6.4 0.8 3.1 5.2 Burr height [mm] 2.11 0.13 1.21 0.54 Shear surface roughness Ra[//m] 3.8 4.6 2.2 3.5 With or without—the secondary shear surface is te te j\\\ Sag [mm] 0.47 0.19 0.32 0.20
由以上之結果，本發明可不擇選被加工材料，展現與 氯系加工油幾近同等之優良加工性能，不產生臭氣等之使 作業環境惡化，而考濾到對環境的影響下進行生產。 又，可達成在低黏度下與氯系加工油幾近相同等之性 能，與消耗電力等之省能源化。 -20- 200946672 [產業上之可利用性] 依據本發明，因可得到適宜環境之非氯系加工油，與 氯系油劑匹敵的模具壽命，且，可得達成良好之製品形狀 ，可適宜作爲精密沖裁加工用潤滑油使用。According to the above results, the present invention can select the material to be processed, exhibits excellent processing performance similar to that of the chlorine-based processing oil, and causes the working environment to deteriorate without generating odor, and the production is filtered under the influence of the environment. . In addition, it is possible to achieve the same performance as that of the chlorine-based processing oil at a low viscosity, and to save energy such as power consumption. -20- 200946672 [Industrial Applicability] According to the present invention, a non-chlorine-based processing oil having a suitable environment can be obtained, and a mold life comparable to that of a chlorine-based oil agent can be obtained, and a good product shape can be obtained. It is used as a lubricant for precision blanking.
-21 --twenty one -