Method and a skid member for reducing temperature difference in a heating subject and a skid apparatus using them

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a lateral vent hole, which is extended from one side of the skid member to one of the other sides thereof.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a lateral vent hole, which is extended at an inclination from a side of the skid member to an opposite side thereof.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes which are extended parallel with one another from a side of the skid member to an opposite side thereof.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes, which are extended at an inclination from a side of the skid member to an opposite side thereof.

A skid member for supporting and/or carrying a hot material to be heated with a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises at least one vent hole, which is formed diagonally.

A skid member for supporting and/or carrying a hot material to be heated within in a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes, which are extended diagonally at an inclination, the vent holes arranged one above another and alternating with one another.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes which are formed at different heights in front and rear faces of the skid member, the lateral vent holes communicating together inside the skid member.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a first set of lateral vent holes which are arranged diagonally one above another alternating with one another and a second set of lateral vent holes which are formed above the first set of lateral vent holes and extended to lateral faces of the skid member.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes which are extended to sides of the skid member at a same height and cross one another.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a plurality of lateral vent holes which are extended to sides of the skid member at an inclination and cross one another.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises a vertical vent hole that is formed in a central portion of the skid member and a scale exit hole extended downward from the vent hole to a side of the skid member.

A skid member for supporting and/or carrying a hot material to be heated with in a reheating furnace, comprising:

• a top face contacting an underside region of the hot material;
• and
• at least one ventilation channel formed in the skid member for introducing hot gas through the same to reduce temperature difference between the underside region of the hot material in contact with the top face of the skid member and a non-contact region of the hot material,
• wherein the ventilation channel comprises at least one vent hole having one open end and the other closed end.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace comprising:

• a top face for supporting the hot material;
• a lateral hollow space of a predetermined size formed within the skid member;
• and
• a lateral vent hole formed in the skid member,
• whereby the quantity of heat transferred from the hot material to a coolant pipe is reduced and the quantity of heat introduced from hot gas is increased to reduce temperature difference between an underside region of the hot material in contact with the top face of the skid member and a non-contact region thereof.

A skid member for supporting and/or carrying a hot material to be heated within a reheating furnace comprising:

• a top face for supporting the hot material;
• a blind lateral vent hole formed within the skid member at predetermined size;
• and
• a stopper blocking an opening of the vent hole to define a hollow space within the skid member,
• whereby the quantity of heat transferred from the hot material to a coolant pipe is reduced to decrease temperature difference between an underside region of the hot material in contact with the top face of the skid member and a non-contact region thereof.

A skid apparatus for supporting and/or carrying a hot material to be heated within a reheating furnace in order to reduce temperature difference between an underside region of the hot material in contact with a skid member and a non-contact region of the hot material, comprising:

• a coolant pipe for allowing passage of coolant through the same;
• a heat insulation layer surrounding an exterior of the coolant pipe;
• and
• at least one skid member having a bottom connected with the coolant pipe, a top face for supporting the hot material and at least one ventilation channel for allowing passage of hot gas within the reheating furnace into the skid member;
• wherein the ventilation channel comprises a lateral vent hole, which is extended from one side of the skid member to one of the other sides thereof.