PLASTICS WORLD SERVICE

Transfer Molding   Transfer molding is like to compression molding except that instead of the molding material being pressurized in the cavity, it is pressurized in a separate chamber and then forced through an opening and into a closed mold. The advantages (Benefits) of transfer molding are that the preheating of the material and injection through a narrow orifice improves the temperature distribution in the material and accelerates the cross linking reaction. As a result the cycle times are reduced and there is less distortion of the molding. The improved flow of the material also means that more intricate or complicated shapes can be produced. Molding Sequence: 1.      The required amount of resin or the polymer is weighted and inserted into the transfer pot before the molding process. 2.      The transfer pot is heated by the heating element above the melting temperature of the polymer charge. 3.      The liquid charge is gravity filled through the sprue to the mold cavit

PLASTICS WASTE MANAGEMENT (PWM) 1.        Sources 2.      Collection segregation 3.      Identification by simple methods 4.      Techniques employed for its separation Plastics have made remarkable contribution in almost every field of human activity today- Medical, transportation, agriculture, piping, electrical and heat insulation, Manufacturing of household and electronic goods, packaging, furniture and other items of daily or specific use. WHY PLASTICS ARE USED Plastics are widely used because of their light weight nature, durability, non-breakability, transparency as well as opacity, potential for diverse application, and low price. CATERGORY OF PLASTICS 1.      RECYCLABLE PLASTICS (Thermoplastics):   PET, HDPE, PVC, LDPE, PP, PS etc. 2.      NON-RECYLABLE PLASTICS (Thermoset and others):   Multilayer & laminated plastics, Nylon, PUF, Bakelite, polycarbonate, Melamine etc. SCENARIO OF WASTE   After food waste and paper waste, plastic waste is the

    Spoken English English is an (international) language and is understood all over the world in fact in today's world Speaking English has become a necessity moreover with the globalization of trade Commerce and new avenues of employment in BPOs and multinational companies the importance of fluent spoken English has grown immensely Being the international link language most of the people lack the requisite skills in the spoken English while conversing in different situations in Day-To-Day life. The proper grasping of the model conversation is illustrated ahead that will help you immensely to overcome the weaknesses.  British Accent   American Accent  Subject  Doer  Helping Verb  Time Words  Main Verb  Action  Doer  He, She, It, Ram, Mohan, I, We, You, They etc. Time words: Do, Does, Is, Am, Are, Was, Were, Has, Have, Had, Will, etc.  Action:  Go, Come, Take, Drive, Pray, Read, Learn, Speak, etc.  AM  When work is going on in present time then we use “Am” 

  ROTATIONAL MOULDING INTRODUCTION ·          Rotational molding is a process of making hollow articles. ·          The part is formed inside a closed female mold. ·          In this process the mold rotates biaxially during heating and cooling cycle. ·          Rotational molded pieces are stress free because the pieces are produced without any external pressure. ·          The ability to manufacture large containers of capacity 30,000 gallons as well as small items like golf ball is responsible for the growth of this process. ·          The Process requires relatively in expensive equipment and exerts on only small pressure on the material being formed. PRINCIPLE ·          The principle of the process is that finely divided plastic material becomes molten when comes in contact with hot metal surface of the mold and takes up the shape of that surface. ·          As only female mold is used, the only pressure exerted is those induced by gravity and centrifugal forc