Name: China Refractory Quick-replace Tundish Nozzle Manufacturers Suppliers Factory - Good Price
Brand: Long Keter
SKU: 223065828

Products Description

Refractory quick-replace tundish nozzle to a new type of refractory material product used to quickly replace nozzles of different specifications during the steelmaking production process. This product relies on the principle of chemical reaction at high temperatures and has excellent high-temperature corrosion resistance and high fire resistance. It can effectively extend the service life of the nozzle, and can quick-replace tundish nozzle without stopping production to improve production efficiency.

According to different uses and forms,quick-replace tundish nozzle can be divided into the following types:

(1) Sliding quick-replace tundish nozzle

Refractory quick-replace tundish nozzlet uses a pairing of a sliding block and a base, and the process of replacing the quick-replace tundish nozzleis completed by easily moving the slider.Refractory quick-replace tundish nozzleis generally suitable for small and medium-sized steel companies, has reliable performance, and is easy to operate and maintain.

(2) Rotary quick-replace tundish nozzle

The rotary quick-replace tundish nozzlea rotary interface, which makes the replacement of the quick-replace tundish nozzle simple and convenient. The rotary quick-replace tundish nozzle has high safety and security and is suitable for some large steel companies.

(3) Hemispherica quick-replace tundish nozzle

The hemispherical quick-replace tundish nozzle is specially designed and is usually used to protect the effectiveness of the flow of molten steel. This type of quick-replace tundish nozzle has excellent fire resistance and wear resistance.

(4) Molded quick-replace tundish nozzle

The molded quick-replace tundish nozzle is a quick-replace tundish nozzle built in refractory material, which transfers heat only to the contact point of the molten steel. It has extremely high port changing speed and flexibility, as well as extremely high fire resistance and wear resistance.

Products Parameters

	Zirconia Inserts			Tundish Nozzle Outer
	LKZN-L	LKZN-M	LKZN-H	LKTN75	LKTN85	LKTN90
Physical Properties
Apparent Porosity (%)	11-12	8-10	6-8	20	18	16
Bulk Density (g/cm³)	≥4.9	≥5.2	≥5.3	2.6	2.8	3.0
Chemical Analysis(%)
ZrO₂ + HfO₂	≥94.0	≥95.5	≥96.0	/	/	/
SiO₂	1.1	0.23	0.5	20	13	8
TiO₂	0.2	0.2	0.1	3	2.1	0.3
Fe₂O₃	0.5	0.05	0.05	2.5	2.0	0.58
Al₂O₃	0.4	0.42	0.1	≥75	≥85	≥90
CaO	0.2	0.15	0.15	0.2	0.1	0.20
MgO	2.5	2.4	2.4	0.2	0.1	0.06
Na₂O	0.03	0.01	0.01	0.6	0.5	0.3

Products Advantages

(1) Replaceability: The great advantage of the quick-replace tundish nozzle is that it can be quickly replaced, thereby reducing downtime during the steel smelting process and improving production efficiency.

(2) Good high temperature resistance and corrosion resistance: Since the quick-replace tundish nozzle change port is used for steel smelting at high temperatures, it must have good high temperature resistance and corrosion resistance.

(3) Reliable sealing: It has excellent sealing performance to ensure that molten steel will not leak.

(4) Shorten the nozzle replacement time: In traditional steel enterprises, replacement of the nozzle requires shutdown, which will waste a lot of time and money. The quick-replace tundish nozzle can be replaced quickly, and the replacement can be completed in just a few minutes, effectively shortening the downtime during the steel smelting process and improving production efficiency.

(5) Reduce maintenance costs: The quick-replace tundish nozzle is easy to replace, reducing the company's maintenance costs. It has excellent corrosion resistance and high temperature resistance, high durability, and is not easy to wear, which can reduce downtime and maintenance costs.

(6) Improve the uniformity of steel: The introduction of the quick-replace tundish nozzle can accurately divert and guide the flow of molten steel, which can well ensure the uniformity of steel and extend the life of stainless steel.

Products Applications

This product is mainly used in steelmaking production. It can be applied to different steel varieties, different production processes and different melting furnace types, and has ideal economic and social benefits.

The specific application of the refractory quick-replace tundish nozzle can be divided into the following steps: first, the sintered bricks are pretreated, placed in the furnace for melting, and then the molten bricks are cast into different specifications of water outlets through a specially prepared pouring machine. , and finally assemble the cast nozzle to the furnace, and production can begin. During the production process, when the water outlet needs to be replaced, just take off the old water outlet and install the new water outlet to complete the replacement process.