CN110408456A - 一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油 - Google Patents

一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油 Download PDF

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CN110408456A
CN110408456A CN201810404487.8A CN201810404487A CN110408456A CN 110408456 A CN110408456 A CN 110408456A CN 201810404487 A CN201810404487 A CN 201810404487A CN 110408456 A CN110408456 A CN 110408456A
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cold rolling
emulsifier
oil
rolling oil
strength steel
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王康健
瞿培磊
姜正连
葛红洲
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Baoshan Iron and Steel Co Ltd
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Abstract

本发明涉及一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其组成按质量百分比包括:a)基础油A:季戊四醇与碳原子数在12‑18个之间的脂肪酸反应生成的酯类物质,30‑70%;b)基础油B:双季戊四醇与碳原子数在12‑18个之间的脂肪酸反应生成的酯类物质,5‑30%;c)基础油C:季戊四醇与二聚酸反应生成的酯类物质,5‑25%;d)乳化剂:非离子乳化剂及阳离子乳化剂的组合物,1‑4.5%;e)极压抗磨剂:磷酸酯,0.5‑6.5%;f)抗氧化剂:屏蔽酚类或芳胺型抗氧化剂,0.5‑1.5%;g)防锈剂:脂肪酸类物质,1‑2.5%。本发明所述的适合单机架可逆轧机生产高强钢产品用的冷轧轧制油具有满足高强钢生产所需的润滑性能,又具有显著减少生产时散发的油烟及刺激性异味的优点。

Description

一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油
技术领域
本发明涉及冷轧轧制技术领域,尤其是涉及一种高强钢在单机架冷轧生产用的轧制油产品。
背景技术
随着钢铁技术的发展,越来越多的钢铁冶金产品朝着高强化技术发展,现代最新的一代高强钢产品已经达到了1200-1500MPa的强度,由于钢种材料特性以及强度级别的大幅增加,对于这类钢种在传统热轧及冷连轧生产过程中均会遭遇到超过轧制设计极限难以生产的困难;因此,通常在冷轧机组会采用多辊(12辊,18辊或20辊)单机架轧机进行往复式多道次生产,出于生产效率的考虑,在单机架轧机的生产时最高轧制速度通常都会在700m/min以上,此时由于高强钢的极高强度特性,使得生产时板温会在150℃甚至170℃以上,而在冷轧生产时会喷射大量的乳化液进行冷却和润滑加工,此时乳化液中水分和油分会大量蒸发雾化成细颗粒,随着轧机顶部的抽风设备排出烟囱,在轧机的周围散发出具有刺激性的阵阵异味;同时,由于高温作用,乳化液被破坏,其中的轧制油常常会失效,导致生产出现了各种包括热划伤、带钢油斑等质量缺陷。
面对这一技术问题,在相关的技术领域进行检索查新,主要发现有如下的一些单机架冷轧轧制油优化技术:
CN1130780.3(一种冷轧薄钢板轧制油组合物),此技术特点是采用加氢裂化矿物油作为主要的基础油用于生产,可以得到退火性能优良的冷轧薄板家用的轧制油,但由于其所用的矿物油在本技术所阐述的150-170℃的范围内会存在大量的挥发及受热裂化,因此轧制油会存在失效的风险,因此不宜用于本技术所述的单机架高强钢的生产。
CN201110362524.1(一种用于双机架可逆轧机的轧制油组合物),提出了一种适合于可逆轧机的轧制油,其主要使用了比例高达70-95%多元醇酯类油性剂,以及壬基酚聚氧乙烯醚,大量的比例达0.1-10%硫醚类挤压抗磨剂,这类轧制油虽然可以提供优秀的润滑性,但是在150-170℃的高温下,乳化液会受热,而所用的硫醚添加剂具有极大的刺激性臭味,在生产时喷射到带钢上,瞬间产生的刺激性挥发烟会形成负面影响到机组操作人员的劳动环境。
CN101434886A(一种用于十二辊可逆轧机的轧制油组合物),主要使用了60-70%的新戊基多元醇酯,14-28%的矿物油和1-5%硫化植物油和硫化动物油,此技术使用了一定量的矿物油和硫化物,也存在前面所述在150-170℃高温段的问题,即矿物油的大量挥发造成生产时轧制油消耗快,且会散发出硫化物的特殊刺激性臭味,对生产的员工造成负面的影响。
从上述的内容来看,对于单机架的可逆冷轧机,在生产高强钢的过程中,现有的冷轧轧制油均存在各种技术不足难于满足高强钢冷轧生产。
本发明提出一种优化的多辊单机架冷轧机组用的轧制油,即可满足单机架冷轧机生产超高强钢的生产需求,还可以显著控制生产时油烟和刺激性异味的散发,提升生产时操作工的工作舒适度。
发明内容
本发明针对单机架冷轧机生产超高强钢过程特点,本发明提供了一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其组成按质量百分比包括:
a)基础油A:季戊四醇与碳原子数在12-18个之间的脂肪酸反应生成的酯类物质,30-70%;
b)基础油B:双季戊四醇与碳原子数在12-18个之间的脂肪酸反应生成的酯类物质,5-30%;
c)基础油C:季戊四醇与二聚酸反应生成的酯类物质,5-25%;
d)乳化剂:非离子乳化剂及阳离子乳化剂的组合物,1-4.5%;
e)极压抗磨剂:磷酸酯,0.5-6.5%;
f)抗氧化剂:屏蔽酚类或芳胺型抗氧化剂,0.5-1.5%;
g)防锈剂:脂肪酸类物质,1-2.5%。
其中,
更进一步地,所述的基础油A为季戊四醇与碳原子数16-18个之间的脂肪酸反应生成的酯类产物,优选为季戊四醇棕榈酸酯、季戊四醇硬脂酸酯、季戊四醇油酸酯中的一种或多种的混合物;
更进一步地,所述的基础油B为双季戊四醇与碳原子数16-18个之间的脂肪酸反应生成的酯类产物,优选为双季戊四醇棕榈酸酯、双季戊四醇硬脂酸酯、双季戊四醇油酸酯中的一种或多种的混合物;
更进一步地,所述乳化剂为非离子乳化剂及阳离子乳化剂质量比3:7-7:3的组合物;
更进一步地,所述的非离子乳化剂优选为含聚氧乙烯醚结构的非离子高分子聚合物乳化剂,所述阳离子乳化剂优选为磺基甜菜碱系乳化剂及碳原子数在12-18个之间的烷基二甲基苄基氯化铵乳化剂中的一种或其混合物;所述含聚氧乙烯醚结构的非离子高分子聚合物乳化剂包括如辛基酚聚氧乙烯醚、聚氧乙烯聚氧丙烯嵌段聚合物、吐温85、吐温80等;所述磺基甜菜碱系乳化剂包括如十二烷基磺基甜菜碱等;所述烷基二甲基苄基氯化铵乳化剂包括如十二烷基二甲基苄基氯化铵、十八烷基二甲基苄基氯化铵等;
更进一步地,所述的极压抗磨剂为碳原子数在14-22个之间的脂肪醇酸性磷酸酯,如十八醇酸性磷酸酯、十四醇酸性磷酸酯等;
更进一步地,所述的抗氧化剂为2,6-二叔丁基对甲基苯酚或N-苯基-ɑ-萘胺;
更进一步地,所述的防锈剂为碳原子数在16-18之间的脂肪酸,如油酸、十六烷酸、硬脂酸等。
本发明所述的适合单机架可逆轧机生产高强钢产品用的冷轧轧制油的制备方法,可以为在常温下将其所含各组分直接混合均匀得到,也可以对混合物进行加热以促进溶解。
本发明所述的适合单机架可逆轧机生产高强钢产品用的冷轧轧制油具有满足高强钢生产所需的润滑性能,又具有显著减少生产时散发的油烟及刺激性异味的优点。
所述轧制油,可以有效提供高强钢轧制过程的润滑需求,也能避免单机架轧制高强钢时带钢极具发热所导致的轧制油挥发,并通过避免使用硫化合物使用控制了单机架轧制时轧制油挥发所产生的刺激味对工人操作引起的不便。同时,非离子高分子聚合乳化剂及阳离子乳化剂的使用可以使得乳化液非常稳定,且利于乳化液长期在高温环境下使用。
最终,由于本产品具有较高的润滑性和可靠性,因此在实际使用过程中具有非常简便且管理便利的优势,非常适合于各类单机架,尤其是轧制高强钢产品的单机架使用。
具体实施方式
实施例1
适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其组成按质量百分比包括:
基础油A:季戊四醇棕榈酸酯,65%;
基础油B:双季戊四醇棕榈酸酯,15%
基础油C:季戊四醇二聚酸酯,10%;
乳化剂:辛基酚聚氧乙烯醚,1%;十二烷基磺基甜菜碱,1%;
极压抗磨剂:十八醇酸性磷酸酯,5%;
抗氧化剂:2,6-二叔丁基对甲基苯酚,1.5%;
防锈剂:硬脂酸,1.5%。
实施例2
适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其组成按质量百分比包括:
基础油A:季戊四醇油酸酯,40%;
基础油B:双季戊四醇油酸酯,30%
基础油C:季戊四醇二聚酸酯,20%;
乳化剂:聚氧乙烯聚氧丙烯嵌段聚合物,1.5%;十二烷基二甲基苄基氯化铵,2.5%;
极压抗磨剂:十八醇酸性磷酸酯,3.5%;
抗氧化剂:2,6-二叔丁基对甲基苯酚,1.5%;
防锈剂:十六烷酸,1%。
实施例3
适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其组成按质量百分比包括:
基础油A:季戊四醇硬脂酸酯,55%;
基础油B:双季戊四醇硬脂酸酯,20%
基础油C:季戊四醇二聚酸酯,15%;
乳化剂:吐温-85,2%;十八烷基二甲基苄基氯化铵,1.2%;
极压抗磨剂:十四醇酸性磷酸酯,3%;
抗氧化剂:N-苯基-ɑ-萘胺,2.7%;
防锈剂:油酸,1.1%。
测试例1
将实施例1-3制得的冷轧轧制油送入实验室开展TGA热重试验分析测量,以了解轧制油在不同温度段下的热挥发失重效果,同时使用现有技术中的FZ/2015轧制油产品(日本大同化学株式会社提供)作为对比例,以评估轧制油的挥发性能,得到如下测量结果:
表1现有单机架使用轧制油产品与不同实施例的TGA试验
可以看见,采用原来的轧制油产品(对比例),由于其设计的时候没有考虑高强钢产品在生产时极具发热的效果,因此在170-200℃的温度范围内,已经显著有油品挥发的损失产生,在300℃的温度下,14.39%质量百分比的轧制油挥发而损失。本发明所设计的实施例在170℃以下基本没有受热挥发的问题,在200℃的情况下仅不到0.4%的油品挥发,而在300℃时才会出现显著的油品的挥发,因此可以满足现场的高强钢生产的高温发热的轧制需求。
此外,由于本实施例所提到的产品不含有硫化合物,且在200℃的生产使用环境下,油品基本没有受热挥发到四周环境中的问题,所以,在实际的使用过程中不存在因为这两者在空气中挥发分散所产生的刺激性的油烟味,对现场操作工的劳动环境也较为有利。
测试例2
将上述的对比例及实施例1-3制得的产品,按照2.5%质量百分比的条件和水搅拌配置成乳化液,并维持在55℃的条件下喷射到带钢及轧辊上进行使用,并在某18辊单机架可逆轧机上轧制DP980材料的高强钢产品,按照如下的轧制规程进行生产:
表2轧制规程
轧辊直径/mm 165
轧制前后张力范围/MPa 30~180
轧辊粗糙度/μm 1.0
各道次厚度变化/mm 2.56/2.13/1.70/1.4/1.14
带钢宽度/mm 1260
实际的使用后,得到如下的轧制力数据的采集,以说明效果对比:
表3实际生产的轧制力对比
从上面的使用后来看,在相同的生产情况下,使用本发明所得到的实施例在生产中的得到各道次的轧制力均小于原来的轧制油产品(对比例),因此说明了本产品在润滑性上的改善。
本发明的实现原理简单,仅需对轧制润滑剂进行相关的调整,同时所使用的原料均可在市场上购买得到。同时,使用相关技术后,对于相应现场设备及轧制规程无需进行大规模变化,可以较为有效地控制单机架轧机轧制高强钢产品时的乳化液挥发,减少操作时工人感受到的刺激性异味,具有较高的实用价值。

Claims (10)

1.一种适合单机架可逆轧机生产高强钢产品用的冷轧轧制油,其特征在于,其组成按质量百分比包括:
a)基础油A:季戊四醇与碳原子数在12-18个之间的脂肪酸反应生成的酯类物质,30-70%;
b)基础油B:双季戊四醇与碳原子数在12-18个之间的脂肪酸反应生成的酯类物质,5-30%;
c)基础油C:季戊四醇与二聚酸反应生成的酯类物质,5-25%;
d)乳化剂:非离子乳化剂及阳离子乳化剂的组合物,1-4.5%;
e)极压抗磨剂:磷酸酯,0.5-6.5%;
f)抗氧化剂:屏蔽酚类或芳胺型抗氧化剂,0.5-1.5%;
g)防锈剂:脂肪酸类物质,1-2.5%。
2.根据权利要求1所述的冷轧轧制油,其特征在于:所述的基础油A为季戊四醇棕榈酸酯、季戊四醇硬脂酸酯、季戊四醇油酸酯中的一种或多种的混合物。
3.根据权利要求1所述的冷轧轧制油,其特征在于:所述的基础油B为双季戊四醇棕榈酸酯、双季戊四醇硬脂酸酯、双季戊四醇油酸酯中的一种或多种的混合物。
4.根据权利要求1所述的冷轧轧制油,其特征在于:所述乳化剂为非离子乳化剂及阳离子乳化剂质量比3:7-7:3的组合物。
5.根据权利要求4所述的冷轧轧制油,其特征在于:所述的非离子乳化剂为含聚氧乙烯醚结构的非离子高分子聚合物乳化剂,所述阳离子乳化剂为磺基甜菜碱系乳化剂及碳原子数在12-18个之间的烷基二甲基苄基氯化铵乳化剂中的一种或其混合物。
6.根据权利要求1所述的冷轧轧制油,其特征在于:所述的极压抗磨剂为碳原子数在14-22个之间的脂肪醇酸性磷酸酯。
7.根据权利要求6所述的冷轧轧制油,其特征在于:所述的极压抗磨剂选自十八醇酸性磷酸酯、十四醇酸性磷酸酯。
8.根据权利要求1所述的冷轧轧制油,其特征在于:所述的抗氧化剂为2,6-二叔丁基对甲基苯酚或N-苯基-ɑ-萘胺。
9.根据权利要求1所述的冷轧轧制油,其特征在于:所述的防锈剂为碳原子数在16-18之间的脂肪酸。
10.根据权利要求9所述的冷轧轧制油,其特征在于:所述的防锈剂选自油酸、十六烷酸、硬脂酸。
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