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high quality metal grinding disc  (6)
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ארכיון
Galvanized Steel Coil Purchase Point
24/05/2019 10:09
qqjuniper
prepainted color galvanized coil

First, believe we are in when buying high quality prepainted color galvanized coil hope to be able to buy the color besmear board with eligible quality, but as the ceaseless increase of this kind of product on the market, also appeared a lot of inferior quality, increased the difficulty that the user is in roll of color besmear of choose and buy so, before we are buying, how to go judging the quality of color prepainted coil?

Second, first of all, we all know that belt is made up of substrate and coating or color peritoneal, and some of the volume production belt manufacturers often on the substrate and coating checkers, they fell by the thickness of the baseboard, but increase the thickness of the peritoneal to the cost of production volume decline belt, this greatly decreased by the service life of the product.

Third, the second can be through the investigation of prepainted color galvanized coil leakage edge, the first investigation color coating volume exposed coating (such as cut surface) whether crystallization fine, gray, dark and have no impurities, if the cut surface is crystallization fine type is superior quality, you can rest assured to buy.

Fourthly, it is better to choose a large production company when choosing the color coating roll, so as to ensure that the quality of products can be guaranteed, and the product service will be more considerate than other small companies.

Fifth, constant ze is a professional production color-coated corrugated roofing sheet, prepainted color galvanized coil, color steel plate, color steel coil of large manufacturers, quality assurance, after-sales worry, welcome new and old users to come to a free consultation.

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Main Application Industry of Galvanized Sheet
23/05/2019 11:15
qqjuniper
GI steel coil with spangles factory

Galvanized sheet is widely used in the main industry, a large number of the galvanized sheet used in automobile manufacturing, refrigerator, construction, ventilation, and heating facilities and furniture manufacturing and other fields, so GI steel coil with spangles factory price is different. It mainly covers the following fields: construction, household appliances, furniture, transportation, steel products, and other daily necessities.

Galvanized application in the construction industry: roof, roof components, balcony panels, windowsills, kiosks, warehouses, rolling doors, heaters, rainwater pipes
Application: refrigerator, washing machine, switch cabinet, air conditioner, microwave oven, bread maker, copier, vending machine, electric fan, vacuum cleaner, etc
Galvanized application in the furniture industry: lampshade, wardrobe, table, bookshelf, counter, signboard, medical equipment and so on
Zinc plating is used in the transportation industry: automobile ceiling, car shell, car plate, tractor, tram, container, highway wall, ship bulkhead, etc.
Zinc-plating is used in other fields: musical instrument case, dustbin, billboard, clock, camera, meter, etc
Galvanized sheet is used in other steel products industry: color coated steel sheet is based on the hot galvanized sheet, hot galvanized aluminum, and zinc plate, galvanized sheet, etc
Hot galvanized sheet tape, galvanized sheet tape, galvanized tin plate, galvanized sheet pressing and forming, with connecting hook, cannot use any accessories can be firmly connected to the net and column
Pick up. Zinc plating has become an important method of steel corrosion, not only because zinc can form a dense protective layer on the surface of the steel, but also because zinc has the effect of cathodic protection when the galvanized layer is broken
However, it can still prevent the corrosion of iron base metal through cathodic protection.

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USES of PPGI Corrugated Roofing Sheet
22/05/2019 10:25
qqjuniper
China PPGI corrugated roofing sheet

Sales of painted panels are increasing and China PPGI corrugated roofing sheet factory is sharing their uses.
First, PPGI roofing sheet is widely used, and has no pollution, excellent weather resistance, corrosion resistance, and high processing and other characteristics, China PPGI corrugated roofing sheet is generally widely used in industrial aspects, in the construction, household appliances, packaging, mechanical processing, transportation, interior decoration, medical and automotive and other industrial aspects are involved.

Second, PPGI corrugated roofing sheet purposes in the home appliances is 31%, while in the purpose of the construction accounted for 63%, is indispensable for the construction industry, in other aspects of the application is less, about 6%, with the zinc plating steel plate as the base plate width, have protection and isolation effect, not only can prevent the steel rust, prolong service life of more than 50% than before, and the stronger protective effect.

Three, region and use the different parts, even with the same amount of galvanized, paint and coating thickness of the same width, and its service life is also more different, in the industrial area and coastal area, due to the role of sulfur dioxide gas in the air or salt, corrosion velocity can accelerate that lead to the service life of the affected, and in the rainy season, the coating is soaked by the rain for a long time will quickly from corrosion and thus reduce the service life.

Four, China PPGI corrugated roofing sheet manufacturing buildings and factories, if often rain wash even prolong service life, or more vulnerable to sulfur dioxide, salt and dust effect is used, so in the design, the slope of the roof, the accumulation of dust and other contaminants, the less the longer service life will be, for those who are not affected by rain often wash the location and area should be clean regularly.

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Galvalume Roofing Sheet Room
21/05/2019 08:32
qqjuniper
Galvalume Corrugated Roofing sheet

The high quality Galvalume Corrugated Roofing Sheet is a new type of temporary building material, has the advantages of scalable, easy to tear open outfit, can factory integrated production, on-site assembly building, one of the most obvious characteristics is convenient and quick assembly and disassembly, disassembled, small volume, convenient transportation and storage, can be repeatedly used, low requirement to the venue, infrastructure is simple, and is widely used in the field of civil and military, etc.

Features of galvalume corrugated roofing sheet room:

1. Adopt non-reported consumption fraud connection mode, less scattered parts, housing frame adopts folding structure, quick disassembly, and assembly,

2. Standard interchangeable structural parts can be used to build houses with different usable areas and purposes;

3. Over 10 years of normal service life.

Aluminum alloy structure has attracted more and more attention in the construction industry due to its advantages of easy processing, low reprocessing cost, high utilization rate, and resource saving.

The galvalume corrugated roofing sheet room house can be used in the highland, cold and snow in the west of China. It can be used in the field office, command post, housing, and warehouse.

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Difference between hot and cold rolled coil
20/05/2019 11:26
qqjuniper
cold rolled steel coil in stock

The surface of the cold rolled steel coil in stock has a certain glossiness. It feels smooth by hand. It is similar to the common steel cup used for drinking water. Cold rolled steel coil due to a certain degree of processing hardening, low toughness, but can achieve a better ratio of flexion and strength, used for cold bending parts such as spring sheet, at the same time because the yield point is close to the tensile strength, so the use of the process of the risk of no predictability, when the load exceeds the allowable load is prone to accidents.

Hot rolled coils without pickling are similar to the surface of many ordinary steel coils on the market. The rusted surface is red and the unrusted surface is violet-black (scale). Cold rolled coil hardness is high, the processing is relatively difficult, but not easy to deformation, high strength. Hot rolled steel coil, mechanical properties are far less than cold processing, also secondary to forging processing, but has good toughness and ductility. The performance advantages of the cold rolled coil and hot rolled coil are as follows:

1. The accuracy is higher, the thickness difference of cold rolled strip steel is not more than 0.01~0.03mm.

2. The size is thinner, cold rolling the thinnest rolling 0.001mm steel belt; wholesale hot rolled steel coil now reaches a maximum thickness of 0.78mm.

3. Better surface quality, cold rolled steel coil can even produce a mirror surface; But the surface of the hot-rolled coil has defects such as oxide scale and pitting.

4. The cold rolled coil can adjust its school-running performance, such as tensile strength and technological performance, such as stamping performance, according to the requirements of users. Cold rolled and hot rolled products thin volume line, is on the process and the difference of next working procedure, hot rolled products are cold rolled products of raw materials, cold rolled hot-rolled steel treated by pickling computer use roll mill, rolling is cold forming, main is too thick specifications of hot-rolled coil rolled into thin specifications of the cold rolled coil, usually such as 3.0 mm hot rolled on rolling can produce 0.3 0.7 mm cold-rolled coil, the main principle is to use the principle of extrusion force-deformation.

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Classified of Prepainted Color Galvanized Coil
17/05/2019 10:57
qqjuniper
China prepainted color galvanized coil

The precoated colorful galvanized coil has the advantages of both organic polymer and steel plate, with good coloring, molding, corrosion resistance, decorative. High strength steel plate, easy processing of organic polymer, can be easily processed. This makes the products made of organic coated steel sheets have excellent practicality, decorative, machinability, and durability.

At present, there are more than 600 colors of coated coils, but there is still no unified classification method, because it is difficult to find a standard to distinguish a variety of varieties, and China prepainted color galvanized coil factory is based on the general habit of classification.

1. Processing technology of colored steel coil. According to different coating methods, there are spraying method, powder method, lamination method, etc., to obtain the organic coating steel plate. Depending on the time of coating, there is an organic coated steel plate, coated with different processes, such as one baking, two coatings, three coatings and so on. According to embossing or printing processing points, can also be subdivided into wood grain plate, marbling and other coating steel plate.
2. Coating type of colored steel coil. It is usually classified according to the coatings used to make organic coatings, including PVC coated steel, polyester coated steel, acrylic coated steel, fluorocarbon coated steel, silicon polyester coated steel, etc.
3. Color steel coil base material. Usually used for color steel coil base material has high-quality cold rolled steel coil china, hot dip galvanized steel coil, galvanized aluminum steel coil, aluminum coil, etc.
4. Coating properties of steel coil. According to the characteristics of organic coating, there are high weather-resistant coating board, high-temperature resistant coating board, self-extinguishing coating board, aseptic coating board, non-stick snow coating board, fingerprint resistant coating board, and self-lubricating coating board.
5. Special coatings and applications. For example, zinc coating rich in epoxy resin, organic coated steel plate based on cold-rolled steel plate, flocking steel plate on the surface and some special machine coated multilayer plate, such as wood thin film plate, composite plate, shock absorber plate, etc.

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Steel Sheets of Different Substrates
16/05/2019 10:25
qqjuniper
cold rolled steel coil factory in stock

The predecessor of the high-quality PPGI corrugated roofing sheet is: hot-dip galvanized steel sheet, hot-dip galvanized steel sheet, or aluminum sheet and cold-rolled sheet. The type of the above-mentioned steel plate is the substrate of the color steel sheet, that is, the steel sheet substrate without paint and lacquer, the above steel sheet Have their own advantages and performance.

1. Hot-dip galvanized steel sheet: The substrate has good impact properties, good elongation, and yield value. The color steel plates produced in this category are well evaluated in the applications of construction, decoration and other industries.

2. Cold-rolled sheet: The cold-rolled sheet produced by cold rolled steel coil factory in stock is a steel sheet that is not annealed, and is also the predecessor of galvanized steel sheets and galvanized steel sheets. The impact properties of the steel sheet are very low, the material hardness is high, the yield value and the elongation are low, and the welding performance is good.

3. Hot-dip aluminum-zinc sheet: The process of this substrate is basically the same as that of hot-dip galvanized steel. The difference is that the zinc content of the surface is different, and the surface zinc-white phenomenon is also very different. There are basically no gaps in other aspects. Weather resistance and life expectancy are better than galvanized steel sheets.

4. Aluminum sheet: aluminum sheet accounted for the best advantage is for special industries, because its own price is high, so the cost alone is not a small expenditure, so only special industry choices: refrigeration, insulation, anti-virus, sterilization and other industries. Impact performance: excellent, can be shaped, invisible impact, bending.

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Classification of galvanized steel sheet
15/05/2019 11:14
qqjuniper
China prepainted color galvanized coil f

China prepainted color galvanized coil factory according to the galvanized way, the galvanized plate is roughly divided into hot-dip galvanized steel plate; Electric galvanized steel plate; Alloy galvanized steel plate; Alloy, composite galvanized steel plate; Single and double galvanized steel.

I. hot-dip galvanized steel sheet. Dip the sheet steel into the molten zinc bath to make the surface adhere to a layer of zinc. At present, the galvanized steel sheet is mainly produced by the continuous galvanizing process, in which rolled steel sheet is continuously immersed in the melting zinc plating bath.

II. Electric galvanized steel plate. The galvanized steel sheet produced by electroplating has good workability. But the coating is relatively thin, corrosion resistance is not as hot-dip galvanized sheet.

III. Alloy galvanized steel plate. This kind of steel plate is made of hot dip method, but after the slot, it immediately heated to a temperature of about 500 ℃, make its surface generation of zinc and iron alloy membrane. Good coating tightness and weldability.

IV. Alloy and composite galvanized steel sheet. It is a steel plate plated with zinc and other metals such as lead and zinc. This steel plate has excellent rust resistance and good coating performance.

V. Single-sided and double-sided galvanized steel. Single sided galvanized steel sheet is galvanized on only one side. It has better adaptability than a double-sided galvanized sheet in welding, coating, rust prevention, and processing. In order to overcome the single side without galvanized shortcomings, there is a thin layer of zinc coated on the other side of the galvanized sheet, which is double-sided difference galvanized sheet.

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How is GL Steel Sheet Waterproof
14/05/2019 11:20
qqjuniper
wholesale GL steel sheet

GL steel sheet is widely used in industrial plant construction and temporary housing construction as a kind of high-quality building material with fast construction, recyclable use and recyclable. But under the erosion of natural phenomena such as wind, sun, rain and so on, the roof of color steel structure will be corroded or even leaked. So how to do a good job of the wholesale GL steel sheet roofing waterproofing work?
I. Grass-roots Treatment
First, the rust and oxide on the metal surface are polished with an electric grinding wheel or wire brush and abrasive cloth, and then the floating dust on the metal surface is wiped clean with cotton yarn or rag. Where the corrosion is serious, iron hammers can be used to knock down the thicker rust skin. If there is oil stain, scrub with gasoline or diluent, pay special attention to the rust removal at the bolt connection and weld seam, which must be thorough and completely expose the metallic luster.
2. Painting Construction
Before the application of the waterproof coating, the holes on the top of GL steel sheet are filled. First, the original slurry of synthetic polymer waterproof coating is used to paint the hollow surface, and then the hollow surface is pasted with polyester non-woven fabric. Waterproof paint should be applied on the top again after the sticking is firm.
In the construction process, the material must be stirred evenly. The material with uniform stirring should not be placed for too long. If the time is too long, it needs to be stirred evenly again.

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How to Store Galvalume Steel Coil During Use
13/05/2019 10:36
qqjuniper
galvalume steel coating steel coil

As one of the commonly used metal materials, galvalume steel coils are mainly used in many aspects such as construction, plant, and machine production. At this stage, the specifications and quality requirements for galvalume steel coils are specified in the standard, including the chemical composition contained in the wholesale galvalume steel coating steel coil, its external dimensions, the quality of the product, the internal structure of the product, and its performance structure. Although the galvalume steel coil is strong and precise, we still need to pay attention to the maintenance in order to extend the life of its use.

If you buy a large amount in one time, it is not possible to use it all at once after receiving the galvalume steel coil. Most aluminum and zinc coils need to be stored in the warehouse first. When you choose a site or warehouse where galvalume steel rolls are stored, you should try to choose a place where the environment is clean, the area is ventilated and the drainage is smooth. Keep away from places where harmful gases or dust may be generated. However, it is best to clean the surrounding weeds on the site. Because there are plants, the humidity around them is relatively large, and the galvalume steel coating steel coil is prone to rust on such a surface for a long time. It is also a principle when stacking galvalume steel coils, that is, under the conditions of stable palletizing and ensuring safety and stability, it is best to place them according to the variety and specifications of galvalume steel coils. If there are other materials in the plant or site that need to be stacked, be sure to classify them.

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