Analysis of dry hanging technology of exterior wall stone
First, construction preparation:
1. Material requirements:
2) Stone: According to the design requirements, determine the variety, color, pattern and size specifications of the stone, and strictly control and check its bending resistance. Tensile and compressive strength, water absorption, freeze-thaw resistance and other properties.
2) Synthetic resin adhesive: The flexible backing material used for the back side of the stone is required to have waterproof and aging resistance.
3) Glass fiber mesh cloth: stone backing material.
4) Waterproof glue: used to seal the connector.
5) Anti-fouling strip: used to prevent contamination on the edge of the stone.
6) Caulking paste: used to insert stone joints.
7) Overcoat: It is used for anti-weathering and anti-pollution of marble surface.
8) The quality of the expansion bolts, connecting iron parts, connecting stainless steel pins and other supporting iron pads, washers, nuts and various joints required for the design and installation of the frame must meet the requirements.
2, the main equipment: bench drill, toothless cutting saw, impact drill, pistol drill, torque wrench, open end wrench, caulking gun, special trolley, long tape measure, box ruler, hammer, steel chisels of various shapes, relying on the ruler, Aluminum level ruler, square ruler, multi-purpose knife, scissors, and joint slits. Lead wire, powder line package for ink wire, ink fountain, small white wire, enamel, iron shovel, knife, ash trough, ash bucket, tool bag, gloves, red pencil, etc.
3. Working conditions:
1) Check whether the quality, specification, variety, quantity, mechanical properties and physical properties of the stone meet the design requirements and perform surface treatment work.
2) Set up the double-row rack to handle the structural base layer, and make the hidden pre-inspection record. After the qualified, the installation process can be carried out.
3) Hydropower and equipment, and embedded embedded parts on the wall have been installed. Vertical transport equipment is prepared in advance.
4) The outer door and window have been installed and the installation quality meets the requirements.
5) When technical personnel are engaged in technical disclosure, technical measures, quality requirements and finished product protection shall be emphasized, especially when the shelves are removed, the finished products shall not be collided. Before large-scale construction, samples should be made before the quality inspection department can pass the qualification test before the construction of the team can be organized.
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Grow Lights are a great choice for growers who are dealing with hot HPS lights and want to change to something that's going to run cooler. Although LED Grow Lights do produce heat,the smaller models might not bring up the temperature of your grow space.Even the more powerful models of LED grow lights that produce a lot of heat still have built-in cooling systems to help prevent the heat from beaming directly down onto your plants.
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Indoor grow light
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Compare led grow light to traditional HPS/MH grow light
WHAT MAKE UP AN EXCELLENT LED GROW LIGHT ?
1.PPFD Value : PPFD is Photosynthetic Photon Flux Density. When you choose a plant light, you should compare the PPFD values of different plant lights. The larger the value, the better the growth of the plant.
2.Actual Power: Because the actual power of the plant light always varies with different conditions, all Amazon sellers use the rated power to describe the power of the product because the rated power is constant. When you pick a LED grow light, the rated power of the plant light is a reference, and more importantly is the actual power.
3.Core Coverage: In addition to the above two, when you choose a plant light, you also need to compare the cover area of different plant lights, of course, the size of the core coverage area. In general, in germination stage, you can hang the plant light higher and the cover area is larger. In flowering stage you can hang the plant light lower and the cover area is smaller because the plant needs more light at this stage. You have to compare different coverage areas to choose the plant light that suits you.
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