Casting method construction
The level and quality of the refractory pouring construction method of different methods and stirring time are also different. With the stirring method should be clear in the construction specification, strictly abide by the mixing time and the content of the manual should be stirred.For all refractory materials mixing, stirring time, stirring method, stirring working temperature, ambient temperature, should be recorded in the text in the field installation report.The construction method of the construction of the refractory casting must be continuous without interruption. Only in the refractory material hardening, only removable abrasive and module and pouring refractory material in the next step.

Mixed castable refractory materials are dry mixing in water supply, before the installation and use of liquid or other stirring mixing. After mixing process after the commencement of construction.

General requirements
(1) should use the whole bag of refractories, can not use already open, damaged and wet material.
(2) the materials produced by the two different manufacturers cannot be mixed, and the two different materials cannot be mixed.
(3) no additives such as cement or limestone shall be added to the material (except steel fibres) unless approved by the manufacturer.
(4) there is no caking or seepage resistant refractory material in the bag. It may be pressed into blocks during the transportation and storage of refractory materials. This lump can be gently opened by hand without affecting the performance of the refractory.
(5) the mixing, delivery and installation of materials shall comply with the manufacturer's recommended range of mixing temperatures for specific materials. Appropriate mixing temperatures can ensure the physical properties of the castable.
(6) the installer shall make necessary temperature control measures for suitable mixing temperatures.
(7) the provisions for material manufacturers, from the start adding water mixing time not less than 3 minutes and the total no more than 5 minutes. For low, ultra low and no adhesive refractory material, mixing time is the main factor to the final physical characteristics determine the material.
(8) the number of refractory materials for each mix shall be arranged according to the amount of work and shall not be too large each time to ensure that the mixed material is installed prior to molding.
(9) the refractory shall be delivered to the installation site immediately after the mixer is released. The construction interval of mixing, adding water, conveying and refractory shall be in accordance with the manufacturer's requirements.
(10) measures should be taken to prevent material separation during the mixing process.

The addition of steel fiber refractory material according to the requirement of adding steel fiber, steel fiber and refractory material should be dried together or later joined the mixing equipment, should be added before adding mixed water. When adding steel fiber should ensure free dispersion into the mixture.After adding steel fibre, before adding water, mixing equipment should be run for 1-2 minutes. The general steel fiber according to the proportion of weighing (about the weight of refractory castable 1.5-2%) pre packing, steel fiber material should be chromium nickel stainless steel, refractory elements are higher.Cement industry commonly used refractory castable construction water quantity see the construction proposal list.

The amount of water added shall be accurately measured in the volume or weight specified in the approved installation procedure. The water used in the mixing construction shall be fresh and clean, and the water shall be controlled at 5℃-40℃.Chlorine ion content in water does not exceed 50ppm.ph value between 6.5 and 7.5. The amount of water should refer to the construction instructions in the amount of water to add, accurate measurement, in the construction conditions, should be less water, in order to achieve better performance.Mixing process is very important, because of its decisive influence on the lining quality, use the correct mixing equipment, mixing time watching right and using the right amount of mixing liquid is very important.Refractory castable should be forced mixer stirring, mixer speed of not less than 18 / min is better, do not allow the use of artificial stirring recommended using the following chart forced mixer.Effect of mixing and mixing equipment control to achieve uniform distribution of refractory materials, with no water under stirring for 30-60 seconds, then add 80% water. The remaining water, make careful measurements to make consistency to get the best results. The indication of the water may be some subtle changes.

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
Contact: Mr. Niu
Tel: +86-371-64372566
Fax: +86-371-64372588
Mobile Phone: +86-15137151612
Email: info@jnrefractory.com
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