本文關(guān)鍵詞：馬氏體淬火用等溫分級淬火油的研制與性能研究　出處：《上海交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 馬氏體淬火 等溫分級淬火油 產(chǎn)品研制 淬火油冷卻性能

【摘要】：淬火油在馬氏體淬火中起著重要的作用,淬火油的冷卻能力直接關(guān)系到淬火后過冷奧氏體的組織轉(zhuǎn)變形態(tài),為了盡可能多的在淬火后得到馬氏體,需要淬火油具備較高的冷卻能力,但是急速冷卻會導(dǎo)致淬火后工件變形量增大,對于尺寸精密的部品造成不良影響。為解決此問題,本文研制一種既有一定淬硬能力,又能有效控制形變、可用于馬氏體淬火的等溫分級淬火油。為了成功的研制出產(chǎn)品,本文采用電子天平、比重計、粘度測試儀、閃點測試儀、冷卻性能測試儀等研發(fā)、分析設(shè)備,對不同粘度的基礎(chǔ)油做了測試和分析,并探討了混合基礎(chǔ)油的冷卻特性規(guī)律,高粘度基礎(chǔ)油特性溫度高、特性時間短,淬火烈度低,低粘度基礎(chǔ)油冷卻特性與高粘度基礎(chǔ)油正好相反。本文系統(tǒng)的研究了基礎(chǔ)油的冷卻特性,以及基礎(chǔ)油加入添加劑后冷卻性能的變化,結(jié)果表明,混合油品的最大冷卻速度要高于單一油品,高粘度油品的加入,會提升等溫分級淬火油的特性溫度,縮短特性時間,高、低粘度基礎(chǔ)油的混合,使冷卻速度出現(xiàn)了800~400℃之間較快,400~300℃之間緩慢的特征。依據(jù)此規(guī)律,本文共研制了五種產(chǎn)品,并對研制出的產(chǎn)品按照J(rèn)IS K2242冷卻性能測試法A法進(jìn)行了冷卻性能的檢測和分析,挑選出了本文最佳研制品M-22,經(jīng)檢測,M-22的物性數(shù)據(jù)和冷卻性能數(shù)據(jù)符合日本JIS K2242熱處理油2類1號油標(biāo)準(zhǔn),也符合我國石油化工行業(yè)SH/T 0564-93熱淬火油1號等溫分級淬火油標(biāo)準(zhǔn),實現(xiàn)了在650~400℃溫度區(qū)間內(nèi)快速冷卻,400℃以下緩慢冷卻的目標(biāo),研制取得了初步成功。
[Abstract]:Quenching oil plays an important role in martensite quenching. The cooling ability of quenching oil is directly related to the microstructure transformation of undercooled austenite after quenching, in order to obtain martensite as much as possible after quenching. Quenching oil is required to have a high cooling capacity, but rapid cooling will lead to an increase in workpiece deformation after quenching, which will have a negative impact on precision parts. In this paper, a kind of austempered oil, which can be used for martensite quenching, has been developed, which not only has certain hardening ability, but also can control deformation effectively. In order to develop the product successfully, the electronic balance and hydrometer are used in this paper. The viscosity tester, flash point tester, cooling performance tester and so on were developed and analyzed. The different viscosity base oil was tested and analyzed, and the cooling characteristics of mixed base oil were discussed. The characteristic temperature of high viscosity base oil is high, the characteristic time is short, the quenching intensity is low, and the cooling characteristic of low viscosity base oil is opposite to that of high viscosity base oil. The results show that the maximum cooling rate of the mixed oil is higher than that of the single oil, and the characteristic temperature of the isothermal quenching oil will be increased with the addition of high viscosity oil. The mixing of characteristic time, high viscosity and low viscosity base oil makes the cooling rate appear faster and slower between 800 鈩，

本文編號：1383236