Seminar Topics & Project Ideas On Computer Science Electronics Electrical Mechanical Engineering Civil MBA Medicine Nursing Science Physics Mathematics Chemistry ppt pdf doc presentation downloads and Abstract

Full Version: to study the rubber mixing mills
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
One of prominent Rubber Mixing Mills Manufacturers, Exporters, and Suppliers in India. Our Rubber Mixing Mills are highly efficient and durable as they are made using high grade raw materials. Our Rubber Mixing Mills are made in compliance with international parameters of quality and other related norms. The Rubber Mixing Mills are known for rugged construction, high performance, anti-corrosive, and so forth. Moreover, we provide Rubber Mixing Mills at the most discounted price in the industry. Components : � Base Plate : Heavy-duty perfectly machined, mild steel fabricated, reduction gear-box and electric motor � Housings : Graded Steel Casting or C.I. Casting attached with fill circle Gun-metal/ Phosphor Bronze Bushes that have provision for recirculation of lubricant. Split-type housings as an alternative � Bull Gear & Pinion : M.S. Fabrication, C.I. Casting, or grades steel casting hob-cut available with EN-8/9 steel forged steel pinion, hob-cut with spur or helical teeth as an alternative AKASH GUPTA ROLL NO. : 100761132991
NAME OF THE PROJECT : TO STUDY THE RUBBER MIXING MILLS
INTRODUCTION

Rubber Mixing Mills Manufacturers, Exporters, and Suppliers in India. Rubber Mixing Mills are highly efficient and durable as they are made using high grade raw materials. Rubber Mixing Mills are made in compliance with international parameters of quality and other related norms. The Rubber Mixing Mills are known for rugged construction, high performance, anti-corrosive, and so forth. Moreover,

2.2 TWO ROLL MIXING MILL
Two Roll Mixing Mill that is ideal for speedy and homogeneous mastication of Natural Rubber, EVA Compound, Synthetic Rubber, and PVC pallets with various chemical and fillers. Our Two Roll Mixing Mills are widely demanded in sheeting mills, compounding mills, warming mills, and supply mills. Components :

Base Plate : Heavy-duty perfectly machined, mild steel fabricated, reduction gear-box and electric motor Housings : Graded Steel Casting or C.I. Casting attached with fill circle Gun-metal/ Phosphor Bronze Bushes that have provision for recirculation of lubricant. Split-type housings as an alternative Bull Gear & Pinion : M.S. Fabrication, C.I. Casting, or grades steel casting hob-cut available with EN-8/9 steel forged steel pinion, hob-cut with spur or helical teeth as an alternative Frames & Caps : Heavy-duty for extreme loads. With graded C.I. Casting, steel casting, M.S. Fabrication ensuring perfect machining for accurate alignments Rolls : Peripherally hollow rolls in alloy chilled cast iron that is duly ground with hardness 520± 2% BHn.
Friction Gear :

Spur teeth gears in EN-8/9, EN-19 grade steel forgings Hob-cut to offer friction ration 1:1.08 to 1:1.18
Available in Friction Ratio :

1:1.08 to 1:2.5
Range :

Normally 6”ØX16”B.L to 22”Ø x60” B.L. Larger sizes are also available provided as
2.3 RUBBER MIXING MILL,

Systematically linking the above-listed production processes in sequence, mixed rubber compound can be prepared in high quality and in a stable manner.

The system provides integrated and centralized control of the processes from the feeding of raw material through to the discharge of rubber compound. This system selects the mixing sequence for each and different compound according to the production schedule automatically.

BB180 Control room

The process display shows the status of mixing processes at a glance. Also, the progress of the processes can be monitored.

Process display

Process monitor

2.4 PROCESSING OF RUBBER
Rubber technology is the subject dealing with the transformation of rubbers or elastomers into useful products, such as automobile tires and rubber mats. The materials includes latex, natural rubber, synthetic rubber and other polymeric materials, such as thermoplastic elastomers. Rubber processed through such methods are components of a wide range of items Methods for processing rubber include mastication and various operations like mixing, calendaring, extrusion, all processes being essential to bring crude rubber into a state suitable for shaping the final product. The former breaks down the polymer chains, and lowers their molecular mass so that viscosity is low enough for further processing. After this has been achieved, various additions can be made to the material ready for cross-linking. Rubber may be masticated on a two-roll mill or in an industrial mixer, which come in different types.

Rubber is first compounded with additives like sulphur, carbon black and accelerators. It is converted into a dough-like mixture which is called "compound" then milled into sheets of desired thickness. Rubber may then be extruded or molded before being cured.

2.5 VULCANIZATION
Most rubber products are vulcanized, a process which involves heating with a small quantity of sulphur (or equivalent cross-linking agent) so as to stabilise the polymer chains, over a wide range of temperature. This discovery was made by Charles Goodyear in the 1844, but is a process restricted to polymer chains having a Double bond in the backbone. Such materials include natural rubber and polybutadiene. The range of materials available is much wider however, since all polymers become elastomeric above their Glass transition temperature. However, the elastomeric state is unstable because chains can slip past one another resulting in creep or stress relaxation under static or dynamic load conditions. Chemical cross links add the stability to the network that is needed for most practical applications

2.6 COMPOUNDING - POWDER HANDLING, MIXING AND MILLING

Introduction Compounding involves the measuring and mixing together of raw rubber, process oils, carbon black, bulk fillers, and rubber chemicals in pre-determined proportions, termed formulations. A rubber compounder can typically use between 100 and 200 different ingredients to mix a range of formulations. The finished mixture is known as compound and is the material that is processed into rubber articles by moulding, extrusion, calendering etc.