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Vents are provided in the mold to allow such air to ESCAPE freely. The VENT is a shallow SLOT not more than 0.05 mm deep and 3mm wide. If the depth is more, the plastic material can PASS through the slot and leave a flash MARK.

Vents are provided in the mold to allow such air to escape freely. The vent is a shallow slot not more than 0.05 mm deep and 3mm wide. If the depth is more, the plastic material can pass through the slot and leave a flash mark.

If the parting surfaces are not properly matched, the molding material from the impression will ESCAPE through the gap. This escaped MELT is CALLED the flash.

If the parting surfaces are not properly matched, the molding material from the impression will escape through the gap. This escaped melt is called the flash.

STRAIGHT, STEPPED and ANGULAR.

Straight, stepped and angular.

FLAT and NON flat

Flat and non flat

The SURFACE where top and BOTTOM half closed together and prevents the loss of plastic material from the IMPRESSION.

The surface where top and bottom half closed together and prevents the loss of plastic material from the impression.

Cycle TIME TC=m*3600/P

 Where ,Tc =minimum cycle time OBTAINABLE 

 M=mass of the shot 

P=plasticizing CAPACITY of the machine with the PARTICULAR polymer being molded (kg/h)

Cycle time Tc=m*3600/P

 Where ,Tc =minimum cycle time obtainable 

 M=mass of the shot 

P=plasticizing capacity of the machine with the particular polymer being molded (kg/h)

CONNECTING MEMBER between IMPRESSION and RUNNER.

Connecting member between impression and runner.

CONNECTING MEMBER between GATE and SPRUE BUSH.

Connecting member between gate and sprue bush.

It is USED to ALIGN the MOLD with MACHINE PLATEN.

It is used to align the mold with machine platen.

CONNECTING MEMBER between REGISTER RING and RUNNER.

Connecting member between register ring and runner.

Male PORTION of the MOLD and it GIVES INTERNAL form.

Male portion of the mold and it gives internal form.

FEMALE PORTION of the mold and it GIVES EXTERNAL FORM.

Female portion of the mold and it gives external form.

Gap between core and CAVITY is CALLED impression.Impression provides the SHAPE of the COMPONENT.

Gap between core and cavity is called impression.Impression provides the shape of the component.

The machine provides the means of HOLDING the mold and rotating it about two axis at the same TIME. This ROTATION CAUSES the POWDERED material that was loaded in to the mold before it was clamped in to the machine to solidify and cling to the wall of the mold.

The machine provides the means of holding the mold and rotating it about two axis at the same time. This rotation causes the powdered material that was loaded in to the mold before it was clamped in to the machine to solidify and cling to the wall of the mold.

The mold used for this process is SIMILAR that of the female HALF of the compression or BLOW mold auxiliary equipment on the machine HEATS the MATERIAL and drags it over the cavity as indicated by the precise technique chosen.

The mold used for this process is similar that of the female half of the compression or blow mold auxiliary equipment on the machine heats the material and drags it over the cavity as indicated by the precise technique chosen.

Blow molding is very much like COMPRESSION molding because the blow mold GENERALLY closes on a hollow shape that has been deposited in between the halves of the mold. AIR or gas pressure is introduced at the CENTER. This internal pressure CAUSES a flow of the heated material in to intimate contact with the relatively cold mold sections. Here the plastic material solidifies and is subsequently ejected.

Blow molding is very much like compression molding because the blow mold generally closes on a hollow shape that has been deposited in between the halves of the mold. Air or gas pressure is introduced at the center. This internal pressure causes a flow of the heated material in to intimate contact with the relatively cold mold sections. Here the plastic material solidifies and is subsequently ejected.

In this process, the PLASTIC MATERIALS is transferred from a transfer pot and then forced in to the CAVITY by means of PLUNGER. This method is used for molding thermosetting materials only.

In this process, the plastic materials is transferred from a transfer pot and then forced in to the cavity by means of plunger. This method is used for molding thermosetting materials only.

In this PROCESS, the plastic material is placed in the cavity and use a force for compressing the COMPOUND as the mold CLOSES, these molds are generally USED for thermosetting MATERIALS.

In this process, the plastic material is placed in the cavity and use a force for compressing the compound as the mold closes, these molds are generally used for thermosetting materials.

In this process, the PLASTIC material is INJECTED in to the mold through a sprue bush by MEANS of a screw plunger. This process can be USED for both thermosetting and thermoplastic MATERIALS.

In this process, the plastic material is injected in to the mold through a sprue bush by means of a screw plunger. This process can be used for both thermosetting and thermoplastic materials.

A STACKED mold is a multiple TWO plate mold with mold placed one over the other. A stacked mold construction doubles the output from a single molding MACHINE and requires the same CLAMPING FORCE.

A stacked mold is a multiple two plate mold with mold placed one over the other. A stacked mold construction doubles the output from a single molding machine and requires the same clamping force.

This is a variation of the heated HOT runner and not the runner PLATE. This is done USING ELECTRIC cartridge.

This is a variation of the heated hot runner and not the runner plate. This is done using electric cartridge.

It is a variation of hot runner mold in this TYPE of molding. The OUTER surface of the MATERIAL in the runner ACTS as a insulator.

It is a variation of hot runner mold in this type of molding. The outer surface of the material in the runner acts as a insulator.

• No MOLDED side PRODUCTS 
• No SEPARATION of GAIT
• CYCLE time can be reduced

In this, runner kept hot to KEEP the molten METAL into fluid state also CALLED runner less MOLD. In this, runner contained in a plate of its own runner section of the mold is not OPENED during molding cycle.

In this, runner kept hot to keep the molten metal into fluid state also called runner less mold. In this, runner contained in a plate of its own runner section of the mold is not opened during molding cycle.

It CONSISTS FEED PLATES with CORE and CAVITY.

It consists feed plates with core and cavity.

Mold which consists of core and CAVITY situated in plates. It is logical type tool where component REQUIRE LARGE gate. For simple type COMPONENTS there is only ONE daylight.

Mold which consists of core and cavity situated in plates. It is logical type tool where component require large gate. For simple type components there is only one daylight.

• TWO PLATE mold 
• Three plate mold 
• Hot runner mold 
• INSULATED runner mold 
• Hot MANIFOLD mold 
• Stacked mold

INJECTION MOLDS, COMPRESSION molds, TRANSFER molds.

Injection molds, compression molds, transfer molds.

The MAIN PARTS of MOLDS are CORE and CAVITY.

The main parts of molds are core and cavity.

It is a CUSTOM BUILD tool in which we converts PLASTIC raw MATERIAL into finished product.

It is a custom build tool in which we converts plastic raw material into finished product.

It is the maximum DISTANCE that the machine platen can be SEPARATED from each other and it can be obtained by adding the maximum MOLD thickness to the maximum OPENING stroke.

It is the maximum distance that the machine platen can be separated from each other and it can be obtained by adding the maximum mold thickness to the maximum opening stroke.

It is the MAXIMUM force that the clamping SYSTEM can exert on the mold or it is the maximum force by which the mold halves can be closed together. It is GIVEN in ton or KILO Newton.

It is the maximum force that the clamping system can exert on the mold or it is the maximum force by which the mold halves can be closed together. It is given in ton or kilo Newton.

It is the maximum RATE at which the SCREW can inject or SHOOT MATERIALS from the barrel during one SHOT.

It is the maximum rate at which the screw can inject or shoot materials from the barrel during one shot.

It is the maximum pressure by which the MATERIAL is injected through the NOZZLE. It is given in kg/cm2.

It is the maximum pressure by which the material is injected through the nozzle. It is given in kg/cm2.

It is the AMOUNT of material that can be processed by the MACHINE per HOUR. It is EXPRESSED in kg/h.

It is the amount of material that can be processed by the machine per hour. It is expressed in kg/h.

MAXIMUM volume MATERIAL INJECTED by the screw during one CYCLE of operation.

Maximum volume material injected by the screw during one cycle of operation.

LEAKAGE of PLASTIC MATERIAL through the NOZZLE in between SHOTS.

Leakage of plastic material through the nozzle in between shots.

• Reverse TAPER (MELT valve)- for PA, ABS ETC.
• Removable tip
• STANDARD of general purpose

Nozzle connected to the end of the barrel through which SOFTEN MATERIALS INSERTED in the mold.

Nozzle connected to the end of the barrel through which soften materials inserted in the mold.

• FEED ZONE 
• COMPRESSION zone 
• MELTING zone

• PLUNGER INJECTION cylinder 
• Two STAGE plunger injection cylinder 
• Pre plasticizer two stage screw injection cylinder 
• Reciprocating screw injection cylinder

• EXTERNAL with mold SURFACE e.g. POLYVINYL alcohol 
• Internal with resins EG. Silicon OIL

Adding of small molecules to plastics to get some characteristics (COLOR, FLEXIBILITY etc.). FILLERS are commonly USED with thermosetting plastics. Additives are of TWO types,

• Physical means such as plasticizer
• Chemical means--- stabilizer.

Adding of small molecules to plastics to get some characteristics (color, flexibility etc.). Fillers are commonly used with thermosetting plastics. Additives are of two types,

Alkyds, epoxies, pf, MF, UREA, POLYESTER

Alkyds, epoxies, pf, mf, urea, polyester

Shrinkage (FLEXI 1.5-3%,RIGID 0.2-0.4%). It is rigid and not very TOUGH and very low COST. Example - PIPES fittings.

Shrinkage (FLEXI 1.5-3%,RIGID 0.2-0.4%). It is rigid and not very tough and very low cost. Example - Pipes fittings.

SHRINKAGE 0.2-0.8%. It is CLEAR, BRITTLE and it can be EASILY MOLDED. Examples are toys, house hold appliances, electronic housings etc.

Shrinkage 0.2-0.8%. It is clear, brittle and it can be easily molded. Examples are toys, house hold appliances, electronic housings etc.

Shrinkage 1-3%. It is flammable and DEGRADABLE in SUN light and stable. Examples are AIR cleaner, garden FURNITURE etc.

Shrinkage 1-3%. It is flammable and degradable in sun light and stable. Examples are air cleaner, garden furniture etc.

SHRINKAGE 0.5-0.7%. It is known optical transparency, RIGIDITY and toughness. EXAMPLES are goggles, LENSES, safety helmets etc.

Shrinkage 0.5-0.7%. It is known optical transparency, rigidity and toughness. Examples are goggles, lenses, safety helmets etc.

Shrinkage 0.7-1.5%. It is tough and HIGH rigid. Examples are LIGHT duty GEARS, sprockets, bearings ETC.

Shrinkage 0.7-1.5%. It is tough and high rigid. Examples are light duty gears, sprockets, bearings etc.

Shrinkage 0.8-1.5%. It is CRYSTALLINE and not available in transparent FORM. Examples are shopping BASKETS, waste baskets ETC.

Shrinkage 0.8-1.5%. It is crystalline and not available in transparent form. Examples are shopping baskets, waste baskets etc.