Question
Download Solution PDFकॅल्शियम आणि सोडियम कोणत्या प्रकारचे वंगण आहेत?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- वंगण हा एक पदार्थ आहे जो परस्पर संपर्कातील पृष्ठभागांमधील घर्षण कमी करण्यासाठी वापरला जातो
- हे पृष्ठभागांच्या अनियमिततेचे (घर्षण) इंटरलॉकिंग कमी करेल
- घर्षण कमी करण्याच्या गुणधर्माला स्नेहकपणा (निसरडापणा) म्हणतात.
- ते असे गटबद्ध केले जाऊ शकतात:
- द्रवरूप स्नेहक: खनिज तेल (पॅराफिन, नॅप्थालीन आणि सुगंध), चरबी आणि वनस्पती तेल (प्राणी तेले, तळी, स्वयंपाकात वापरण्याची डुकराची चरबी, एरंडेल तेल, ऑलिव्ह तेल, रोझिन तेल इ.), कृत्रिम तेल
- अर्ध-द्रव वंगण: ग्रीस, कॅल्शियम, सोडियम इ
- घन वंगण: ग्रेफाइट, साबण-दगड, टाल्क, संगजिरा इ.
Last updated on Jun 11, 2025
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