High-Quality Drainage Agent Raw Materials for Refractory
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Drainage agent
Product description
According to the iron and steel industry in the process of continuous casting the performance of existing drainage agent bad to open rate since the ladle is not high, burn oxygen excessive, even cause continuous casting process interrupt problem, our company developed the development and production of high flow initiator series products. It is made by the high quality imported GeKuangSha, refined quartz sea sand and high refractoriness material composition, with good fluidity, more than major and fast speed, the appropriate sintering thickness, resistance to erosion and penetration, molten steel ladle artesian free-opening rate above 98%, and other characteristics, greatly to reduce the labor intensity of recognized, reduce oxygen blowing drainage, improve the quality of steel products, ensure continuous casting process smoothly.
Drainage agent series physical and chemical instructions:
model | SiO2 AL2O2 Fe2O2 MgO Cr2O2 Particle size Water (%) |
LF-Si-1 | 92～98 -- -- -- -- 0.315～2.5 <0.5 |
LF-Si-2 | 86～92 <5 <3 <3 1～5 0.15～2.5 <0.5 |
LF-Si-3 | 75～84 3～10 <3 <5 -- 0.315～2.5 <0.5 |
LF-Cr-1 | 23～28 9～14 18～23 6～10 32～38 0.15～2.0 <0.5 |
LF-Cr-2 | 35～40 <8 13～19 5～8 28～33 0.15～2.0 <0.5 |
LF-Cr-3 | 15～20 10～15 16～22 7～11 38～44 0.15～2.0 <0.5 |
LF-Mg-1 | 70～80 -- -- 10～20 -- 0.15～2.0 <0.5 |
Applicable scope General silicon, magnesia drainage agent used in the short flow steelmaking process; Ordinary chrome conduction agent used in refining quality time less than 45 min or not scouring the steelmaking process; Refining chrome conduction agent used in quality LF, VD, RH and refining the longer steelmaking process; Chromium stainless steel mass flow initiator used in steel stainless steel series; Thin flow initiator suitable for various kinds of thin sections of steelmaking process.
- Q: Can anyone tell me what material the first rate fire resistant door is?
- Class A fire door materials are mainly steel, wood, steel and wood,and other materials. If there is filling material in a Class A fire door, it is generally the perlite. According to the actual situation in China, the fire doors and windows are divided into class A, class B, class C, whose minimum fire endurances are stipulated, namely class A 1.50h, class B 1.00h, Class C 0.50h. There are fireproof wooden doors and fireproof steel doors. whose main purpose is to achieve fire endurance time. But door closers are required to be installed.
- Q: Who knows how many fire heat preservation material are there?
- There are many kinds of fire proof materials. The major material used in construction industry is fire proof and thermal insulation material, mainly include vitrified micro bead insulation board, class A expanded bead fiber board, rock wool board, plastic extruded sheet, polyurethane insulation board
- Q: How to distinguish the fire resistant level of the rubber and plastic thermal insulation material?
- Level A of non-combustible insulation materials are: W W inorganic active wall insulation materials, cement foam insulation board, glass beads of insulation mortar, rock wool board, glass wool board and foam ceramics, ect. Th e level A is non-combustible material, characterized with low density, low thermal conductivity, high bearing capacity, convenient construction, economy and durablity, and widely used as the thermal insulation materials in hot pipes, thermal equipment and other pipe-line equipment and industrial architectures, and as the thermal insulation, heat insulation and sound-absorbing materials in industrial and civil building envelope. Because of its good thermal stability, it is more used as fire-resistant protective coating material of steel structure.
- Q: The mechanism and function of antioxidants in carbon containing composite refractories are briefly described.
- 3, the selection principle of antioxidant and its thermodynamic and kinetic mechanism31 selection principles of antioxidants:(1) according to the thermodynamic data and the conditions of use, the possible condensed phase and the vapor pressure of each gas phase are determined;(2) compare the size of each coacervation and oxygen affinity, and the possibility of reaction with CO.(3) the influence of various reactions on the microstructure of brick was analyzed.The thermodynamic and kinetic mechanism of 3.2 antioxidantsFrom a thermodynamic point of view, at the operating temperature, the additives or additives that react with carbon react with oxygen more closely than carbon and oxygen, giving priority to carbon oxidation, thus protecting carbon;From the analysis of dynamics point of view: the compound additive with oxygen and carbon monoxide reaction changed the microstructure of carbon composite refractory materials, such as increasing the density, blocked pores, hinder the diffusion of oxygen and reaction products.
- Q: Which industry does refractory belong to? Does it belong to construction industry?
- I am engaged in construction. Refractory material does not necessarily belong to construction industry. Fire resistance is only a part of material?performance. Indeed, there are many places requiring refractory accorded with fire resistant level.
- Q: How long does it take for refractory cement to solidify?
- 1. First you should be aware of the concepts of condensation and condesation time. Refractory cement belongs unshaped refractories, which when added water or liquid binding agent to mix, the agitation material will gradually lose thixotropy or plasticity and become in a state of solidification, thus is solidified. The time needed to finish the process is called solidification time. The whole process is divided into initial and final set. When beginning to lose plasticity called the initial setting, when called plasticity completely lost the final setting. 2. For refractory cement, the solidification time depends on the matching of the material and the parts and using methods. Under normal circumstances, in order to meet the requirements of time of construction, the initial set time should be no shorter than 40min, and the final set time should be no longer than 8H 3. There are also some exceptions. When refractory cement is used for spraying and injection operation together with other refractory castable, the set time is required as short as possible, sometimes flash set is required to prevent the occurrence of peeling or collapse of the spraying layer.
- Q: What needs to be noted when choosing and using blast furnace fireproof materials? Who knows?
- there are different temperatures in various parts of the blast furnace, thus using different types of refractory.
- Q: What are the disadvantages of the refractory industry?
- The rapid development of continuous casting technology allows Hua Heng refractories to be improved in variety and quality. The development of refractory for continuous casting has a significant impact on the production of continuous casting and quality of continuous casting billet. Constructing and putting Baosteel into action has greatly pushed the improvement of the refractory technology. Continuous casting refractory is an important part of the continuous casting machine. In addition to the general characteristics of refractories, it is also required functions that can purify molten steel, improve the quality of steel, stabilize temperature and composition of the molten steel, control and regulate the molten steel flow. Therefore, it is known as functional refractories. Continuous casting Refractories include: (1) ladle refractory - ladle lining, permanent lining and ventilation components; (2) tundish refractories - permanent lining, coating, insulating plates, clad etc; (3 ) functional refractories - long nozzle for non-oxidizing casting, submerged nozzle, monolithic stopper, sliding gate; (4) ceramic purifier for purifying molten , slag dam, alkaline paint and horizontal separating ring and gate board for continuous casting.
- Q: What are the requirements for fire?rating of construction suspended ceiling material ?
- In fireproof design of all parts in interior decoration, fireproof design of suspended ceiling is the most important. Because the flame is burning up in fire and the suspended ceiling is the first and most direct part to test fire; at the same time, it has a direct impact on the evacuation. Therefore, in indoor suspended ceiling decoration design, fireproof work should be considered fully. Code of fire prevention design of interior decoratio of buildings has detailed provisions for fireproof?performance of indoor suspended ceiling materiial of different civil buildings. Suspended ceiling (sprung roof) refers to the top decoration of a house. Suspended ceiling, an important sub-project in construction decoration project, and the hidden layer of electrical equipment, ventilation and air condition, communication and fireproof, alarm pipelines, etc. has the functions of thermal insulation, sound insulation and absorption. Suspended ceiling plays an important role on the entire house decoration. Proper decoration to the house top surface, can not only beautify indoor environment, but also create a colorful interior artistic image. When choosing decoration materials and design of suspended ceiling, you should follow the principle of saving material, being solid, safe, beautiful and practical.
- Q: What are the advantages of refractory material?
- Jingute WHL type, GDS type
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High-Quality Drainage Agent Raw Materials for Refractory
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