PROJECT-REPORT AT

NASIR AZMIMECHANICAL DEPARTMENT

ROLL-NO 7071113121

DIPLAST LTDDiplast Plastic Ltd. is considered

to be one of the top ten companies of India due to its quality, technology, turnover, production capacity and various types of quality products. Many new innovations in plastics are being brought to India by Diplast Plastics Ltd.

The Unit was set up in the year 1972 and was inaugurated by none other than the Honorable ex-president of India - Mr. Giani Zail Singh Ji.

INTRODUCTIONInjection molding machine An

Injection molding machine, also known as an injection press, is a machine for manufacturing plastic products by the injection molding process. It consists of two main parts, an injection unit and a clamping unit.

Injection molding machines can fasten the molds in either a horizontal or vertical position..

INJECTION MOLDING MACHINE FOLLOWING ARE THE

BASIC PART OF INJECTION MOLDING MACHINE.

Injection cylinderDrive unitHooperScrewMold toolsMold clamping cylinde

FOLLOWING ARE THE MAIN SYSTEM WHICH IS USE IN INJECTION MOLDING MACHINE.

Injection system Hydraulic system Mold system Clamping system Control system

PPRC (POLY PROPYLENE RANDOM CO-POLYMER)

This machine is generally use for making mold.

ELBOWJUNCTION BOXNAHNI TRAPP- TRAP

OVER-VIEW OF INJECTION MOLDING MACHINE

DUTIES $ RESPONSIBLITIESInstruction for the assistant supervisor of injection molding machine.1. Minimize the scrap and use the scrap simultaneously within 2-3 days when it is

produce.2. Check quality and printing of fitting good.3. Man power handling and optimum utilization.4. Order execution in time.5. Check availability of raw material and to arrange for any short material.6. Arrangement of packing boxes whenever required.7. To check the insert availability and order well in advance.8. To absorbed the mold change time and reduce the mold change time as far as

possible.9. In mold section maximum attention is to be paid to check efficiency of the worker.10. To make drawing of mold. so it can be use be use whenever in future.

APPLICATION OF INJECTION MOLDING MACHINEInjection molding is used to create many things such

as wire spools, packaging, automotive dashboards, and most other plastic products available today. Injection molding is the most common method of part manufacturing. It is ideal for producing high volumes of the same object. Some advantages of injection molding are high production rates, repeatable high tolerances, the ability to use a wide range of materials, low labor cost, minimal scrap losses, and little need to finish parts after molding. Some disadvantages of this process are expensive equipment investment, potentially high running costs, and the need to design moldable parts.

MOLD DRAWING

Mold drawing structure.Following are the basic

part ;Moving plattersClamping cylinderCross headLinkcrosshead

MOLD OR DIA Generally Dia is use

for making the different type of mold, according to our requirement.

Such as Elbow, junction box,p-trap,coupler,etc

ORGANIC STRUCTURE POLYVINYL CHLORIDE

Poly(chloroethanediy)commonly abbreviated PVC, is a thermoplastic polymer. It is a vinyl polymer constructed of repeating vinyl groups (ethenyls) having one of their hydrogens replaced with a chloride group

ADVANTAGE $ DISADVANTAGEThe greatest advantage of this process is its ability to produce single-

piece injection moldings with highly complex interior geometries without secondary operations. Similarly shaped objects are usually made from aluminum castings, which can weigh 45% to 75% more than a comparable molding. The tooling also lasts longer than metal casting tooling due to the lack of chemical corrosion and wear. Other advantages include.

Very good surface quality with no weak areas due to joints or weldsHigh dimensional accuracy and structural integrityNot labor intensive due to the few secondary operations requiredLittle wasteInserts can be incorporated

MOLDING DEFECTSMolding defects Injection molding is a complex technology with

possible production problems. They can be caused either by defects in the molds or more often by part processing (molding)

Once the equipment is set to successfully create the molded part, modern monitoring systems can save a reference curve of the cavity pressure.

Molding DefectsUnuniformlyBurn markColour less

END OF PRESENTATION THANK YOU FOR YOUR VALUABLE TIME