The types of Casting Defects Used In Fory Indundustry And Definitions.

The Shifts.

•  The shifts

The shift are miss matching of the different parts of a mould at the joint lines and shifts may be caused by the use of under size moulding box prints or by movement of the face of the moulding during rolling over.

The Fins

• The fins

The fins are flash alone the joints lines of castings may be used when the moulder raps the pattern excessively before the with drawn's it from the mould. If the moulder does not place sufficient weight on the top part of the mould or fails to see that the parts of the mould are tightly clamped the top part of the mould fins may lift slightly.

The Bellow holes.

•  The Bellow Holes

The bellow holes are smooth rounded holes visible on the surface of a casting may be one large smooth depression. They are caused by high moisture low permeability. Expensive fine grains and gas producing ingredients by extra hard ramming and improper venting by the moulder any one of these variations from the correct practice may cause bellow holes and it is some times difficult to determine exactly which is responsible.

Shrinkage cracks.

• The Shrinkage Cracks

The shrinkage cracks with oxidized walls and following a jagged path.If the metal is pulled apart in the mould while in plastic conditions but the design and feeding have been checked and found sat is factory shrinkage cracks and cavities may be caused too low pouring temperature.

  

The Hand Moulding Tools Used In Foundry Industry And Definitions

Shovel hand moulding tool.

• The Shovel Hand Moulding Tool

The shovel hand moulding tool is used for miming and tempering moulding sand for moving the sand from the pile to the flask. A clean well kept shovel tool is the badge of a careful work main. The true temple shovels hand moulding tool used in foundry industries.

Riddle hand moulding tool.

•  The Riddle Hand Moulding Tool

The riddle hand moulding tools are circular wooden frame with a wire mesh bottom. It is used for remove an material such as nails shot metal splinters of wood etc. From the moulding sand size of the mesh indicates the size of the brain riddle teasers number 8. The small tool riddle wood be one heaving approximate 1/8 square. The simple riddles hand moulding tools are used in foundry industries

Bench rammer hand moulding tool.

•  The Bench Rammer Hand Moulding Tool

The bench rammer hand moulding tool is a wooden tool used for  packing the sand in the moult. One end called the pennies weighed shaped and the opposite end called the butt has a flat surface. The bench rammers usually made of maple that has been soaked in a oil to pressure the wood. The bench rammer hand moulding tool used in foundry industries.

Strike off bar hand moulding tool.

• The Strike Off Bar Hand Moulding Tool  

The strike off bar hand moulding tool is a metal bar tool used to remove the surplus sand from the mould after the raining has been completed. A wrought iron or cast iron with a true edge is commonly used as a strike off bar tool. The strike off bar is a hand moulding tool used in foundry industries.

Vent wire hand moulding tool.

•  The Vent Wire Hand moulding tool

The vent wire hand mouldng tool specially designe for moulds. The vent wire is a wire rod used for making and opening called vent's in the moult's. These vent's permit gas and streams to escape from the moulds during the pouring operation. The vent wire rod made by steel or metal. The vent wire hand moulding tool used in foundry industries.

The Hand Moulding Tools Used In Foundry Industry And Definations

Swab hand moulding tool.

• The Swab Hand moulging Tool

. The well swabbing hand moulding tool in made flask or hemp and is used for applying water to the moulds around the edge of the pattern. This prevents sand edge from crumbing when pattern is removed from the moulds. The nose swab hand moulding tool used in foundry industries.

Draw nail hand moulding tool.

• The Draw Nail hand Moulding Tool

 The draw nail hand moulding tool is a sharped pieces of metal driven into the pattern it holds by direction and used for removing the pattern from he moulds. The draw nail hand moulding tool used in foundry industries.

Rawhide mallet hand moulding tool.

• The Rawhide Mallet Hand moulding Tool

 The rawhide mallet hand moulding tool hammer used to loose the pattern in the moulds so that it can be with drawn without damage to the moulds. A rawhide mallet will not more or deface the pattern as a metal mallet wood. The rawhide mallets hand moulding tool used in foundry industries.

Gate cutter hand moulding tool.

• The Gate Cutter Hand Moulding Tool

 The gate cutter hand moulding tool stick is a piece of sheet metal or wooden is used to cut the opening that connect the sprue with the mould cavity this opening is called a gate cutter stick. The gate cutter stick hand moulding tool used in foundry industries.

Bellows hand moulding tool.

• The Bellows Hand Moulding Tool

 The metal bellows hand moulding tools are used to bellows loose sand out of the moulds. It is some times more selis factory to used to the metallic bellows to bellow out lose sand that then at would be to try to removed with lifter or other device. The metallic bellows hand moulding tools are used in foundry industries.

The Hand Moulding Tools Used In Foundry Industry And Definitions.

Trowels hand moulding tool.

• The Trowels Hand Moulding tool

The trowels hand moulding tools are used for making joints and finishing for surfaces of a mould. There are many different kinds of trowels some kinds which are called finishing,square and spear the foundry end finishing trowel is probably commonly used.The curry trowels hand moulding tool used in foundry industries.

The slick hand moulding tool

• The Slick Hand moulding Tool

 The slick hand moulding tool is a small tool used for repairing and finishing moulds are many kinds some types are oval spoon,heart and spoon, double spoon,double bead.The type of finishing moulds most commonly used is the oval spoon. The slicks hand moulding tool used in foundry industries.

Lifters hand moulding tool

•  The Lifters Hand Moulding tool.

The cam lifter hand moulding tool used for batching deep sections of a mould and removing lose sand from pockets of the moulds the yankee lifters. Most useful in the average foundries. The solid lifters hand moulding tool used in foundry industries.

Sprue pin hand moulding tool

• The Sprue Pin Hand Moulding Tool

The sprue pin hand moulding tool is a wood or metal pin. Rammed in the cope of a mould to make opening through which the metal is poured. The sprue pin hand moulding tool used in foundry industries.

Sprue cutter hand moulding tool

• The Sprue Cutter Hand moulding tool

The sprue cutter hand mouding tool is a wooden or aluminum tool. The spure cutters are used instead of sprue pin production foundries because they save time in ramming a mould. A sprue cutter is a hollow tube pushed the cope at the joint of the mould. As the tube is with drawn it removes the sand. Leaving and opening for the metal this opening is called sprue. The sprue cutter hand moulding tool used in foundry industries.