This technical standard is applicable to the decoration of interior and exterior walls, cylinders and door and window sets of marble, polished granite, prefabricated terrazzo and other decorative panels for civil and public buildings.
Construction preparation:
2.1 Material requirements:
2.1.1 Cement: No. 325 ordinary Portland cement. There should be a factory certificate or a retest list. If it is more than three months after delivery, it should be used according to the test results.
2.1.2 White cement: 325 white cement.
2.1.3 Sand: coarse sand or medium sand, sieved before use.
2.1.4 Marble, polished granite, prefabricated terrazzo, etc.: Prepare according to the specifications and colors required by the design and drawings. However, the surface must not have defects such as hidden injuries and weathering. It should not be packed with fading materials.
2.1.5 Other materials: such as plaster, copper or galvanized lead wire, lead skin, hard plastic slats, matching pendants (galvanized or stainless steel connectors, etc.); should also be equipped with appropriate amount of marble or polished granite, Prefabricated terrazzo and other color gravel and mineral pigments; 107 glue and special plastic hose for filling the gap of the veneer.
2.2 Main equipment:
2.2.1 Scales, iron plates, half vats, small buckets, shovel, flat shovel, trolley, plastic hose, rubber bowl, watering can, alloy steel flat scorpion, alloy steel drill bit (φ5, for eye drilling), operating bracket, Bench drill, iron level ruler, square ruler, ruler plate, base ruler (3000～5000mm×40mm×10～15mm), support plate, line pendant, powder line package, high stool, wooden wedge, small table grinding wheel, cut Change marble grinding wheel, full cutting machine, open knife, gray board and lead (1mm thick), wooden trowel, iron trowel, fine wire brush, enamel, size hammer, small white wire, lead wire, cloth or cotton Silk, tiger pliers, spatula, box ruler, nails, red pencils, brushes, tool bags, etc.
2.3 Working conditions:
2.3.1 Handle the structure acceptance. A small number of types of work (hydropower, ventilation, equipment installation, etc.) should be done in front, and ready to process the water, power supply, etc. required for the veneer.
2.3.2 The inner wall surface is good for 50cm horizontal line (the outdoor wall surface is good for ±0 and the horizontal level control line for each layer).
2.3.3 Scaffolding baskets should be supported in advance. Double-row shelves should be used (the outdoor high-rises should adopt hanging baskets, multi-layer can use bridge shelves, etc.), and their horizontal and vertical rods and tie rods should leave the door window angle of 150-200mm. The step height must meet the construction requirements.
2.3.4 Door and window frames must be properly positioned (right, vertical, and secure, and have sufficient margin for the size of the marble). At the same time, the gap should be blocked with 1:3 cement mortar. The caulking materials used for the seams of aluminum alloy door and window frames shall meet the design requirements, and the plugs shall be tightly packed and the protective film shall be pasted.
2.3.5 Marble, polished granite or prefabricated terrazzo should be stacked indoors after laying in, under the square wood, check the quantity and specifications, and pre-lay, flower, number, etc., in order to be used for official paving. .
2.3.6 Large-scale construction should be released before construction and sample preparation. After passing the appraisal by the quality inspection department, it must be jointly identified by the design, Party A and the construction unit. The team can organize the construction according to the requirements of the model.
2.3.7 The stone materials entering the site shall be checked and accepted. When the color is uneven, it shall be selected and tested if necessary.
High Purity Graphite refers to Graphite Carbon content > 99.99%, widely used in high-grade refractory material and coating of metallurgy industry, military industry, fire engineering pencil lead on material stabilizer, light industry, electrical industry of carbon brush, electrode of battery industry, fertilizer industry catalyst, additive, etc.
Performance: the scales of crystallization is complete, thin and toughness, good physical and chemical performance, good thermal conductivity, temperature tolerance, self-lubrication, conductivity, thermal shock resistance, corrosion resistance and other properties.
Description: high purity Graphite (aka: scaly high thermal conductivity carbon powder) has high strength, good thermal shock resistance, high temperature resistance, oxidation resistance, resistance coefficient, corrosion resistance, and the advantages of easy to precision machining, is the ideal inorganic non-metallic materials. Used for processing and production of electrical heating components and smelting casting mould structure, high purity metal with boat, single crystal furnace crucible with heater, edm graphite anode, metal plating, sintering mold, tube, semiconductor technology with graphite crucible, launch tube, thyratron and mercury rectifier with graphite anode, grid, etc.
Characteristics and applications: high purity graphite with high strength, high density, high purity, high chemical stability, uniform and compact structure, high temperature resistant, high conductivity, good wear resistance, self-lubrication, easy processing characteristics, widely used in metallurgical, chemical, aerospace, electronics, machinery, nuclear power and other industrial fields. Especially high quality high purity graphite, as an alternative material, has wide application space in high technology and new technology field and has wide application prospect.
The purification methods are divided into two categories: first, wet purification, including flotation, acid and alkali, and hydrofluoric acid. The second is fire purification, including chlorination roasting and high temperature method.
High purity graphite
Is widely used in high-grade refractory material and coating of metallurgy industry, military industry, fire engineering pencil lead on material stabilizer, light industry, electrical industry of carbon brush, electrode of battery industry, fertilizer industry catalyst, additive, etc. High purity graphite through deep processing, but also produce graphite, graphite sealing material and composite material, graphite products, graphite antifriction additives such as high-tech products, become the important nonmetallic mineral raw materials of various industrial sectors.
High Purity Graphite
High Purity Graphite,High Carbon Graphite,High Purity Natural Graphite,High Purity Carbon Graphite
Fengcheng Ruixing Carbon Products Co., Ltd , http://www.lnfcrxts.com