1

Selected natural α-extra high strength gypsum powder (CaSO4 1/2H2O)

Advantages: green, high purity, good strength and toughness

Disadvantages: relatively high cost

Ordinary gypsum powder mixed with ordinary cement or fly ash

Advantages relatively low cost

DisadvantagesLow purity, low strength and toughness, not environmentally friendly

Unbleached sulfate coniferous wood pulp

ProsNatural wood pulp, green, no impurities, no odor, high floor strength

Disadvantages relatively high cost

Recycled pulp from waste newspaper and kraft paper

Advantages low cost

DisadvantagesMany impurities, odor, not environmentally friendly, low floor strength

Shanghai Nogawata Stick Glue

AdvantagesEnvironmental protection, no pollution, firm paste

Disadvantages Cost increase

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Common resin adhesive

Advantages relatively low cost

Disadvantage: not environmentally friendly, poor adhesiveness

Shougang galvanized steel

AdvantagesHigh hardness, good flatness, bending resistance and other properties, good rust resistance

Disadvantages Increased cost

Ordinary small steel mill steel plates

Advantages relatively low cost.

DisadvantagesMany impurities, poor steel properties, general bending resistance, general rust resistance

2

Single-piece preparation, single-piece production. In other words, after mixing all kinds of raw materials separately and evenly, through the automatic electronic weighing system, the amount of all kinds of raw materials required for each piece of board is accurately weighed according to the formula, and then it enters the mixing bin for production.

The advantages ensure that each piece of product has uniform texture, stable quality and small density error

Disadvantages: more procedures, time-consuming operation, higher cost

Direct mixing and stirring of various raw materials in batches

AdvantagesSimple process, easy to operate

Disadvantage: Uneven texture of each piece, high or low content of ingredients, large error in density of each piece.

3

Huili company introduced two sets of German BISON automatic mesh belt drying equipment, the whole drying channel is about 30 meters long, divided into 5 levels, each level of drying channel adopts electronic digital technology to automatically control the temperature, to ensure that the whole drying process is in a constant temperature state.

AdvantagesThe whole drying process is in a constant temperature state, the temperature difference between each place in the drying tunnel at all levels is less than 1℃, thus ensuring that each piece of calcium sulfate board substrate can be evenly dried, to achieve the moisture content, product qualification rate.

DisadvantagesHigh cost of equipment, use and maintenance costs are large.

Homemade traditional old ovens or kilns

Advantages low equipment price and maintenance costs

Disadvantages difficult to control the temperature in the oven channel to achieve constant temperature, the temperature difference between the various parts of the oven channel, generally 10 ℃ or more, calcium sulfate board can not be dried. In addition, if the temperature in the oven is too high, the substrate will be over-dried and the moisture content is too low, the substrate will be dusted, the strength of the substrate will be reduced, and it will be easy to break after the force; if the temperature in the oven is too low, the substrate cannot be evenly dried and the moisture content is high, the galvanized steel plate and the substrate cannot be firmly pasted, and there are often quality problems such as shelling, blistering and rusting of the surface steel plate.

1

Huili flooring raw materials have standards and requirements, the floor on the steel plate using brand big steel mills such as Tang Steel, Baosteel cold-rolled steel plate, hardness in 90HRC or more, so as to ensure the floor steel, flatness, resistance to bending and other performance. The bottom plate is made of high quality deep Chung board, and the floor is formed as a whole at one time, and its edges and corners are formed with good structure.

Advantages high hardness, flatness, bending resistance and other properties, good rust resistance performance

Disadvantages Cost increase

Ordinary small steel mill steel plates

Advantages relatively low cost.

DisadvantagesMany impurities, poor steel properties, general bending resistance, general rust resistance

Adopting imported foaming equipment and foaming agent, the pure cement slurry adopts self-weight filling to ensure dense grouting and uniform foaming, thus ensuring the bearing strength of the floor and avoiding the sound of cement fracture after paving and use.

Disadvantages lower production efficiency, production costs increase

Low-grade cement and adulterated fly ash, ordinary foaming agent, the advantages of low cost.

Disadvantages: floor strength is reduced, stepping on the filler fracture sound

2

1) Huili flooring improves the previous process, and the floor must be shaped after stamping and welding, which ensures the precise dimension of the floor profile and sufficient surface flatness.

2) All Huili flooring edge parts have a total of 64 welding points, 50% more than the 40 welding points of ordinary flooring, greatly enhancing the bearing capacity of the edge of the floor.

3) The unique structure design of Huili flooring, in addition to the traditional bottom 64 small balls, the addition of 32 raised small balls, solving the shortcomings of the bottom flat area of ordinary flooring is relatively weak, enhancing the overall load in the floor, ultimate load and evenly distributed load.

Disadvantages more investment in research and development, more processes, time-consuming operation, increased costs