Closed tundish for nickel and nickel alloy vacuum melting horizontal continuous casting
A technology of vacuum smelting and horizontal continuous casting, which is applied in casting equipment, metal processing equipment, casting molten material containers, etc. It can solve the problems of freezing of nozzles and easy oxidation of molten nickel, so as to increase stability and avoid non-metallic inclusions The effect of reasonable content and structure design
Active Publication Date: 2015-12-30
沈阳金纳新材料股份有限公司
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The object of the present invention is to provide a closed tundish for nickel and nickel alloy vacuum smelting horizontal continuous casting, which solves the problems that the nickel liquid is easily oxidized and the nozzle freezes to death during the casting and subcontracting process. In addition, improve the metal yield, avoid the occurrence of nickel liquid oxidation, further purify the nickel liquid, improve the quality of the billet, facilitate the control of the flow rate of the nickel liquid, and increase the stability of the nickel alloy vacuum continuous casting billet production process
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Such as figure 1 As shown, before production, check whether the equipment is normal, ensure that the refractory gate 10 of the package body 5 is in a connected state, and the crystallizer fixed section 15 and refractory slide 13 are in a closed state, so that the inside of the equipment is vacuum-tight from melting to crystallizer In device 1, turn on the vacuum device 6, and after the vacuum degree is controlled below the standard requirement, argon is blown into the inner bottom of the enclosure 5 (partially enters the crystallizer). After the internal pressure is slightly greater than the external pressure, the refractory gate of the enclosure 5 The plate 10 is closed, the enclosure 5 is in a sealed vacuum state, and the induction heating device 8 is started. At this time, the refractory sleeve 4 connected to the nickel liquid overflow tank connects the smelting furnace with the enclosure 5, injects the nickel liquid, and starts the electromagnetic stirring 7 device....
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A closed tundish for nickel and nickel alloy vacuum smelting horizontal continuous casting, which solves the problems that the nickel liquid is easily oxidized and the nozzle freezes to death during the casting and subcontracting process, including the tundish body and nozzle body, refractory sleeve, and nickel liquid induction heating The technical points of the device and the crystallizer are as follows: the package body is encapsulated in a vacuum sealing device, the side wall of the package body outlet is provided with a fire-resistant gate channel, and a refractory slide plate with a nickel liquid through hole is provided between the outer interface of the nozzle and the separation ring. The blowing hole of the bottom argon blowing device is installed obliquely on the side wall facing the outlet of the enclosure, and an inclined plane is set between the local plane from the bottom of the enclosure to the end of the blowing hole and the insertion platform of the refractory gate at the outlet of the enclosure; Electromagnetic stirring devices are respectively installed on the body, nozzle body and crystallizer. Its structural design is reasonable, reducing the excess of tundish injection, increasing the metal yield, avoiding the occurrence of nickel liquid oxidation, further purifying the nickel liquid, improving the quality of the ingot, and facilitating the control of the flow rate of the nickel liquid, which can increase the nickel alloy vacuum continuous casting billet Stability of the ingot production process.
Description
technical field [0001] The invention relates to a tundish for producing nickel and nickel alloys by a vacuum smelting horizontal continuous casting process, in particular to a closed tundish for nickel and nickel alloys vacuum smelting horizontal continuous casting. It belongs to the continuous casting field of non-ferrous metal industry. Background technique [0002] According to patent literature reports, the tundish used for horizontal continuous casting subcontracting of metal smelting is mostly used in the smelting and continuous casting of molten steel, such as the "horizontal continuous casting induction heat preservation tundish" with the authorized announcement number CN2165945Y, which is mainly suitable for casting small-section steel bad equipment. The problems in this tundish: first, molten steel flows into the entire tundish under the atmosphere, causing secondary pollution of molten steel and affecting the quality of the billet after continuous casting; devic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B22D41/00B22D41/01B22D41/60B22D41/58B22D41/62
Inventor 李洪锡
Owner 沈阳金纳新材料股份有限公司