AG products you need to know before using
The basic information that needs to be understood before the three major tests:
Which three major products are customers currently using normally, and how are they used? Including service life, what are the main quality problems? What are the advantages?
This kind of understanding is based on our understanding of the same industry, and we can have a basic and indirect general understanding of the conditions of use of the steel mill.
1. Stopper:
1. Baking system of stopper, baking temperature and time
2. Casting steel grades and billets. The components of molten steel are mainly calcium content and oxygen content
3. Erosion of slag line
Attention should be paid during use: the installation should be correct, and the liquid surface of the package should not be too crusty during use.
2. Long sluice
1. Are you blowing argon? Cast steel grade, depth of slag line insertion into molten steel
In the process of use, be careful not to hang on the side as much as possible, and the top-tightening force should be appropriate. Excessive force will crack the bowl mouth. The interval between changing bags should not be too long, about 2 minutes is appropriate.
3. Immersion nozzle
1. Casting steel grades and billets
2. Baking method, baking time, temperature
Baking method: whether it is online or offline, whether there is a ventilation device for online baking, and whether there is a burner heating at the side hole. What kind of roaster is used for offline roasting and what energy is used (natural gas, gas, electricity)
3. How many slag lines are used? What is the distance between each track
The baking of the nozzle is very important. Online baking is generally not as good as offline baking, and the temperature is low; using electric furnace baking is not as good as gas or natural gas baking. The baking time is generally two to three hours. If it is short, it may not be baked for a long time, and it may oxidize and reduce the life.
It is best for the nozzle to take no more than 5 minutes from the stop of baking to the opening of the molten steel. The temperature of the nozzle will drop a lot, especially in winter, which increases the probability of bursting.
The reasons for the breakage of the magnesium carbon rod head and the aluminum carbon rod head are similar. Now the carbon content of the general rod head is about 10%, and the carbon content of the rod body is generally about 25%. The two materials have thermal expansion coefficient, strength and other indicators. There is a big difference, and the expansion coefficient of magnesium carbon is larger, so the transition part of the two materials is a weak point. When subjected to transverse shearing force during use, it will break from the weak point of the stopper rod.
The general solution is to strengthen the transition operation of different materials and improve the overall strength of the stopper rod to reduce the probability of breaking the rod, which is difficult to completely avoid.
AG products you need to know before using
The basic information that needs to be understood before the three major tests:
Which three major products are customers currently using normally, and how are they used? Including service life, what are the main quality problems? What are the advantages?
This kind of understanding is based on our understanding of the same industry, and we can have a basic and indirect general understanding of the conditions of use of the steel mill.
1. Stopper:
1. Baking system of stopper, baking temperature and time
2. Casting steel grades and billets. The components of molten steel are mainly calcium content and oxygen content
3. Erosion of slag line
Attention should be paid during use: the installation should be correct, and the liquid surface of the package should not be too crusty during use.
2. Long sluice
1. Are you blowing argon? Cast steel grade, depth of slag line insertion into molten steel
In the process of use, be careful not to hang on the side as much as possible, and the top-tightening force should be appropriate. Excessive force will crack the bowl mouth. The interval between changing bags should not be too long, about 2 minutes is appropriate.
3. Immersion nozzle
1. Casting steel grades and billets
2. Baking method, baking time, temperature
Baking method: whether it is online or offline, whether there is a ventilation device for online baking, and whether there is a burner heating at the side hole. What kind of roaster is used for offline roasting and what energy is used (natural gas, gas, electricity)
3. How many slag lines are used? What is the distance between each track
The baking of the nozzle is very important. Online baking is generally not as good as offline baking, and the temperature is low; using electric furnace baking is not as good as gas or natural gas baking. The baking time is generally two to three hours. If it is short, it may not be baked for a long time, and it may oxidize and reduce the life.
It is best for the nozzle to take no more than 5 minutes from the stop of baking to the opening of the molten steel. The temperature of the nozzle will drop a lot, especially in winter, which increases the probability of bursting.
The reasons for the breakage of the magnesium carbon rod head and the aluminum carbon rod head are similar. Now the carbon content of the general rod head is about 10%, and the carbon content of the rod body is generally about 25%. The two materials have thermal expansion coefficient, strength and other indicators. There is a big difference, and the expansion coefficient of magnesium carbon is larger, so the transition part of the two materials is a weak point. When subjected to transverse shearing force during use, it will break from the weak point of the stopper rod.
The general solution is to strengthen the transition operation of different materials and improve the overall strength of the stopper rod to reduce the probability of breaking the rod, which is difficult to completely avoid.
AG products you need to know before using
The basic information that needs to be understood before the three major tests:
Which three major products are customers currently using normally, and how are they used? Including service life, what are the main quality problems? What are the advantages?
This kind of understanding is based on our understanding of the same industry, and we can have a basic and indirect general understanding of the conditions of use of the steel mill.
1. Stopper:
1. Baking system of stopper, baking temperature and time
2. Casting steel grades and billets. The components of molten steel are mainly calcium content and oxygen content
3. Erosion of slag line
Attention should be paid during use: the installation should be correct, and the liquid surface of the package should not be too crusty during use.
2. Long sluice
1. Are you blowing argon? Cast steel grade, depth of slag line insertion into molten steel
In the process of use, be careful not to hang on the side as much as possible, and the top-tightening force should be appropriate. Excessive force will crack the bowl mouth. The interval between changing bags should not be too long, about 2 minutes is appropriate.
3. Immersion nozzle
1. Casting steel grades and billets
2. Baking method, baking time, temperature
Baking method: whether it is online or offline, whether there is a ventilation device for online baking, and whether there is a burner heating at the side hole. What kind of roaster is used for offline roasting and what energy is used (natural gas, gas, electricity)
3. How many slag lines are used? What is the distance between each track
The baking of the nozzle is very important. Online baking is generally not as good as offline baking, and the temperature is low; using electric furnace baking is not as good as gas or natural gas baking. The baking time is generally two to three hours. If it is short, it may not be baked for a long time, and it may oxidize and reduce the life.
It is best for the nozzle to take no more than 5 minutes from the stop of baking to the opening of the molten steel. The temperature of the nozzle will drop a lot, especially in winter, which increases the probability of bursting.
The reasons for the breakage of the magnesium carbon rod head and the aluminum carbon rod head are similar. Now the carbon content of the general rod head is about 10%, and the carbon content of the rod body is generally about 25%. The two materials have thermal expansion coefficient, strength and other indicators. There is a big difference, and the expansion coefficient of magnesium carbon is larger, so the transition part of the two materials is a weak point. When subjected to transverse shearing force during use, it will break from the weak point of the stopper rod.
The general solution is to strengthen the transition operation of different materials and improve the overall strength of the stopper rod to reduce the probability of breaking the rod, which is difficult to completely avoid.AG products you need to know before using
The basic information that needs to be understood before the three major tests:
Which three major products are customers currently using normally, and how are they used? Including service life, what are the main quality problems? What are the advantages?
This kind of understanding is based on our understanding of the same industry, and we can have a basic and indirect general understanding of the conditions of use of the steel mill.
1. Stopper:
1. Baking system of stopper, baking temperature and time
2. Casting steel grades and billets. The components of molten steel are mainly calcium content and oxygen content
3. Erosion of slag line
Attention should be paid during use: the installation should be correct, and the liquid surface of the package should not be too crusty during use.
2. Long sluice
1. Are you blowing argon? Cast steel grade, depth of slag line insertion into molten steel
In the process of use, be careful not to hang on the side as much as possible, and the top-tightening force should be appropriate. Excessive force will crack the bowl mouth. The interval between changing bags should not be too long, about 2 minutes is appropriate.
3. Immersion nozzle
1. Casting steel grades and billets
2. Baking method, baking time, temperature
Baking method: whether it is online or offline, whether there is a ventilation device for online baking, and whether there is a burner heating at the side hole. What kind of roaster is used for offline roasting and what energy is used (natural gas, gas, electricity)
3. How many slag lines are used? What is the distance between each track
The baking of the nozzle is very important. Online baking is generally not as good as offline baking, and the temperature is low; using electric furnace baking is not as good as gas or natural gas baking. The baking time is generally two to three hours. If it is short, it may not be baked for a long time, and it may oxidize and reduce the life.
It is best for the nozzle to take no more than 5 minutes from the stop of baking to the opening of the molten steel. The temperature of the nozzle will drop a lot, especially in winter, which increases the probability of bursting.
The reasons for the breakage of the magnesium carbon rod head and the aluminum carbon rod head are similar. Now the carbon content of the general rod head is about 10%, and the carbon content of the rod body is generally about 25%. The two materials have thermal expansion coefficient, strength and other indicators. There is a big difference, and the expansion coefficient of magnesium carbon is larger, so the transition part of the two materials is a weak point. When subjected to transverse shearing force during use, it will break from the weak point of the stopper rod.
The general solution is to strengthen the transition operation of different materials and improve the overall strength of the stopper rod to reduce the probability of breaking the rod, which is difficult to completely avoid.
