Lubricants used in textile industry

Management and Maintenance of Textile Machinery

1. Presented By Md. Shamsuzzaman B.Sc. (WUB), M.Sc. (BUTEX) Lecturer, Department of Textile Engineering World University of Bangladesh Contact: [phone] Email: [email protected] WORLD UNIVERSITY OF BANGLADESH Department of Textile Engineering 7/15/2020 Slide Prepared by- Md. Shamsuzzaman Lubricants used in Textile Industry Course Name: Management and Maintenance of Textile Machinery Course Code: TE 901

2. Overview of the Class 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 2 of 14 D efinition I mportance of lubricant C haracteristics of lubricant S election of lubricant F unctional properties of lubricant W here are lubricants in use in the textile industry? I ncreasing productivity by 150% with lubricants F actors considered for lubricant selection S torage and handling of lubricants B asic functions of lubricating oil

3. Definition 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 3 of 14 In addition to industrial applications, lubricants are used for many other purposes. Other uses include cooking (oils and fats in use in frying pans, in baking to prevent food sticking), bio-applications on humans (e.g. lubricants for artificial joints), ultrasound examination, medical examination. It is mainly used to reduce friction and to contribute to a better and efficient functioning of a mechanism. A  lubricant  is a substance, usually organic, introduced to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces. The property of reducing friction is known as lubricity.

4. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 4 of 14 Reduction of wear & tear Reduces m/c maintenance time & cost. Synchronized m/c operation appropriate rpm of m/c in optimal speed & uniformity of speed. Legibility assurance of m/c & m/c parts. Higher operating efficiency less idle time & stopping. Better quality of products: due to well-running & disturbance are the causes of better quality products. Reduces m/c stoppage frequency, so attainment of the higher quality. Reduces fatigue & boredom of work forces due to well running less stoppage & troubles. Develop ergonomics & improve working environment. Above all maintenance, reduce work load & cost of overall manufacturing. IMPORTANCE of LUBRICANT

5. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 5 of 14 Viscosity Sp. gravity Flash point Pour point CST( Centistroke ) Volatility Acid no of parts per million (ppm) CHARACTERISTICS of LUBRICANT

6. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 6 of 14 Selection of lubricant is governed by following factors Types of gear/bearing or point of lubricants Speed of gears/shaft (in case of seal box of gear) Reduction ratio Operating temperature Input horse power Nature of load provided SELECTION of LUBRICANT

7. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 7 of 14 Outcome from the physical properties Lubricant must be resist oxidation Lubricant must be resist carbon formation Lubricant must be resist rust formation Lubricant must anti-foaming Lubricant must be resist extreme load Lubricant must possess required viscosity Lubricant must act goods cleaning agent (CCl4, petrol, diesel) FUNCTIONAL PROPERTIES of LUBRICANT

8. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 8 of 14 Spinning machines:  excellent corrosion protection for bearings, spinning turbines, opening rollers, spinning pumps, and spinnerets Knitting machines:  long service life with minimum maintenance requirements for needles and sinkers, slide rails and guide bars Weaving machines:  longer intervals between maintenance operations due to minimum-quantity lubrication for gears, gripper looms and chains Finishing machines:  resistance to water, steam, acidic and alkaline solutions for steamers, rolling bearings, compensators and rollers Stenter frames:  less residue due to high separating effect on conveyor chains, adjustment spindles, needle bars and clips Where are lubricants is use in the textile industry?

9. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 9 of 14 Increasing productivity by 150% with lubricants a considerably lower consumption of natural resources efficient and reduced amount of material used less waste increased occupational safety due to lower lubricant consumption higher cost effectiveness for the operator

10. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 10 of 14 Thermal / temperature stability:  If oil becomes hot in use, then it is important that it should not make it break down so that it ceases to lubricate properly. Speed:  Higher the speed of moving parts, lower should be the viscosity of the lubricant. Load:  Higher the load to be carried, higher should be the viscosity of the lubricant. Heat conductivity:  When the lubricant is used with bearing & other moving parts, it should be able to carry away heat generated. Flammability:  This is the very important factor while selecting a type of lubricant. The lubricant or oil selected should not be able to catch flame. For example, it is most important in aviation, coal mining etc. Factors Considered For Lubricant Selection

11. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 11 of 14 Storing of too many lubricant types should be avoided. The specific quantity of each type of lubricant should be stored in the specific size of containers. Lubricant storage is often combined with solvent & paints. The overall fire risk is high & storage should be in the separate building with fire precautions. Smoking & naked flames should always be banned in lubricant storing area. Access to lubricant stores should be restricted to very few people authorized to issue & dispense lubricant. The large storage tank of rectangular shape should be placed few inches above the ground, to avoid corrosion of the base. Standard distance is 3 ft. Drums have to be stored vertically & pump is used to dispense oil. For taking grease from container wooden spoon should be used. The tray can be used to store excessive oil & can be reused. A cover should be always clean before opening, otherwise, it will contaminate lubricant & affect its properties. Storage And Handling Of Lubricants

12. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 12 of 14 Reduction of friction Cooling Cleaning Corrosion protection Sealing Basic Functions of Lubricating Oil

13. Further Reading 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 13 of 14 https://www.emerald.com/insight/content/doi/10.1108/eb052385/full/html?skipTracking=true

14. 7/15/2020 Slide Prepared by- Md. Shamsuzzaman 14 of 14 The End