Refractory mortar products structure

Refractory mortar composed of fine powder and a special binder mixing and compounding, natural air drying conditions have good strength and form combined with high strength joints, eventually form similar to the integral prefabricated structure of brick masonry.

JM2600: Air hardened clay, suitable for insulating refractory brick masonry low level, can be used for applying construction method and immersion method.

BLK: an advanced refractory clay, black, water retention property is very good, is designed for lightweight brick masonry and development, but also used in the construction of heavy bricks and high alumina heavy brick. Delivery consistency is suitable for thin layer repairing and painting method construction, about 5% moisture can be applied to the impregnation method construction. For the lightweight heat insulating brick masonry construction mainly, have a small amount of heavy brick, very suitable for single selection BLK mastic.

JM3300: high temper hard clay, suitable for building JM32 insulating brick and heavy high alumina refractory brick.

It is normally provided by type barreled to wet namely, with sealed metal barrels packaging.

Introduction and using range of refractory clay

Refractory clay is also called exothermic or joint material. Used as a refractory products masonry joint material.

By materials can be divided into clay, high alumina, silica and magnesia refractory mud. Composed of refractory powder, binder and additive. Refractory raw materials can be made for almost all of the powder used to compound refractory clay. With refractory clinker powder with the appropriate amount of plastic clay as binder and plasticizer and made known the ordinary refractory clay, the room temperature strength of low, high temperature formed ceramic combination has a higher strength. In hydraulic, air hardening or hot rigid binding material as the known chemical bond binding refractory clay, below the form ceramic combined with temperature before that produce a certain chemical reaction and hardening. Grain size of refractory mortar according to use requirements vary, the ultimate particle size generally less than 1mm, and some less than 0.5mm or more fine.

The selection of refractory slurry material should be considered with the refractory products masonry material consistent. Refractory clay except for joint materials can also be used to smear method or injection method is used as a protective coating liner.

Mud properties and application of refractory: 1, plasticity is good, the construction is convenient; 2, high bond strength, anti erosion ability; 3, high refractoriness, up to 1650 – 50 Deg. C; 4, good slag resistance, invasion; 5, good thermal spalling. Refractory clay is mainly used in the coke oven, glass furnace, hot blast furnace, and other industrial furnace.

The application of industry: metallurgy, building materials, machinery, petrochemical, electric power, boiler, glass, steel, cement and other.

Properties of semi silica refractory

(1) refractory

Higher silica content of semi silica refractory products, refractory degree can reach 650 to 1710 DEG C, close to the silica brick.

(2) load softening temperature

In the semi silica refractory products, forming part of the network structure, so the load softening temperature is slightly higher than the clayey refractory products, up to 1350 to 1450 DEG C.

(3) the thermal shock stability

Semi silica refractory products than the clayey refractory products thermal shock stability slightly worse, the general water cooling times is 10 or so, the reason is quartz expansion coefficient, rapid changes of temperature, volume changes lead to local stress concentration.

(4) the slag resistance

Semi silica refractory products in the chemical nature belongs to semi acidic, so resistant to acidic slag erosion ability.

(5) the line changes heavy firing

In the semi silica refractory products, due to the expansion of high temperature contraction offset silica clay, so the volume stability, than the clayey refractory product reheating linear change.