The Converter Fast Repairing Technology

The rapid repairing technology is to control the appropriate slag composition, use the high melting point mineral content of the slag after tapping, and add a proper amount of pig iron to make the slag, pig iron and the furnace lining become a whole, to achieve the effect of repairing the furnace, because of the protection formed ;There are pig iron blocks in the layer, so it has high mechanical strength, resistance to impact and abrasion, and slows down the erosion rate of furnace lining bricks, so as to reduce the consumption of refractory materials and increase the life of the converter.
The operation steps and main points are:

1. For heats that require rapid slag surface repair, notify the operator in advance that 200Kg of magnesium balls will be added during the smelting process, and the end point is controlled according to the end point [C]>0.07%; slag basicity R: 2.5-3.0; MgO content 9%~ 10%. And notify the scrap preparation team to prepare a scrap bucket of 1.5t pig iron in order to prepare for the need for quick repair of the furnace.
2. In order to ensure the furnace repair layer formed after the slag surface is quickly repaired, the slag can cover the pig iron block, and the slag volume is required to be relatively large. The "big mouth slag" should be avoided during the temperature measurement and sampling of the furnace and the process of tapping.
3. After placing the steel, without splashing slag to protect the furnace, directly shake the furnace body to 75°, that is, the angle between the furnace mouth and the furnace front platform is 15°, and use a scrap bucket to add a prepared 1.5t pig iron block, and then slowly shake it Turn the furnace to 100°, so that the pig iron block is just in the area where the slag surface is impacted by the waste iron and steel water. The furnace head should observe the situation from the furnace mouth. Adjust the converter angle according to the actual situation.
4. After waiting for 5 minutes, the slag and pig iron have been solidified on the slag surface, and the converter is shaken to the zero position, and the slag splashing protection operation is carried out normally.
5. After the slag splashing operation is completed, the slag is normally dumped, and the waste steel water is poured into the waste steel water for blowing. After the rapid repair of the furnace, the first furnace requires careful operation, the slag is converted, and the process is well controlled. "Three hits", do a good job of slag splashing and furnace protection after tapping.
6. The safety precautions should be paid more to the repairing times of the pig iron slag than the conventional repairing of the slag surface, and the relevant safety operation regulations should be strictly implemented. Before the furnace is poured, no people are allowed to pass in front of the furnace mouth. Warm sampling operation.

The method of quickly repairing the furnace with slag surface and pig iron can replace the conventional furnace repairing method. This method is flexible and effective. It can make full use of the production gap to protect the furnace. While ensuring the furnace protection effect, the cost of refractory materials is reduced, and the converter is improved. Production efficiency has a positive effect on completing production tasks and increasing product competitiveness.

Please keep the source and address of this article for reprinting: The Converter Fast Repairing Technology

Minghe Die Casting Company are dedicated to manufacture and provide quality and high performance Casting Parts(metal die casting parts range mainly include Thin-Wall Die Casting,Hot Chamber Die Casting,Cold Chamber Die Casting),Round Service(Die Casting Service,Cnc Machining,Mold Making,Surface Treatment).Any custom Aluminum die casting, magnesium or Zamak/zinc die casting and other castings requirements are welcome to contact us.

Under the control of ISO9001 and TS 16949,All processes are carried out through hundreds of advanced die casting machines, 5-axis machines, and other facilities, ranging from blasters to Ultra Sonic washing machines.Minghe not only has advanced equipment but also have professional team of experienced engineers,operators and inspectors to make the customer’s design come true.

Contract manufacturer of die castings. Capabilities include cold chamber aluminum die casting parts from 0.15 lbs. to 6 lbs., quick change set up, and machining. Value-added services include polishing, vibrating, deburring, shot blasting, painting, plating, coating, assembly, and tooling. Materials worked with include alloys such as 360, 380, 383, and 413.

Zinc die casting design assistance/concurrent engineering services. Custom manufacturer of precision zinc die castings. Miniature castings, high pressure die castings, multi-slide mold castings, conventional mold castings, unit die and independent die castings and cavity sealed castings can be manufactured. Castings can be manufactured in lengths and widths up to 24 in. in +/-0.0005 in. tolerance.  

ISO 9001: 2015 certified manufacturer of die cast magnesium, Capabilities include high-pressure magnesium die casting up to 200 ton hot chamber & 3000 ton cold chamber, tooling design, polishing, molding, machining, powder & liquid painting, full QA with CMM capabilities, assembly, packaging & delivery.

ITAF16949 certified. Additional Casting Service Include investment casting,sand casting,Gravity Casting, Lost Foam Casting,Centrifugal Casting,Vacuum Casting,Permanent Mold Casting,.Capabilities include EDI, engineering assistance, solid modeling and secondary processing.

Casting Industries Parts Case Studies for: Cars, Bikes, Aircraft, Musical instruments, Watercraft, Optical devices, Sensors, Models, Electronic devices, Enclosures, Clocks, Machinery, Engines, Furniture, Jewelry, Jigs, Telecom, Lighting, Medical devices, Photographic devices, Robots, Sculptures, Sound equipment, Sporting equipment, Tooling, Toys and more. 

What Can we help you do next?

∇ Go To Homepage For Die Casting China

By Minghe Die Casting Manufacturer |Categories: Helpful Articles |Material Tags: Aluminum Casting, Zinc Casting, Magnesium Casting, Titanium Casting, Stainless Steel Casting, Brass Casting,Bronze Casting,Casting Video,Company History,Aluminum Die Casting |Comments Off