The Seventh Round Strict Air Pollution Inspection Completed

The seventh round of the yearlong strict inspection on air pollution had been completed by Jul.20th.Between Jul.7 and Jul.20,the inspection teams checked a total 5,322 business (organizations),and found environmental incompliances in 1,389 of them.Of the incompliant enterprises,347 were unlicensed small polluters,two did not attain emission standards,252 failed to install pollution control facilities,160 failed to keep such facilities in normal operations,536 had VOCs control problems,and four had other problems.

The inspection results showed VOCs control was the primary pollution problem,which accounted for 38.6 percent of the total problems revealed by this round of inspection.Tangshan Municapality is the home to 54 VOCs emitters,the largest number in the 28 target cities.From the industrial perspective,the rubber and plastics manufacturing,machinery manufacturing,coating and spraying,plywood,packaging and printing industries contributed the largest share of VOCs emission.

There were 347 unlicensed small polluters which violated the environmental legislations,accounting for 25.0 percent of the total incompliant enterprises.The fugitive emission was serious.

Starting Jul.21,the inspection team launched the eighth round strict inspection over the air pollution in the Beijing-Tianjin-Hebei region and surrounding areas.

On the sidelines of the eighth strict inspection,the ministry is about to initiate six rounds thematic inspection in Hebei and Henan on their performance in the implementation of the detailed plans for implementing the action plan against air pollution.The thematic inspection,which will last for 84 days,the targets at tight cities in Hebei and seven cities in Henan,with each city under the scrutiny of an inspection team.

The Ministry required that the inspection teams touring Hebei and Henan provinces strengthen the inspection and urge the local governments and relevant departments at all levels to take the responsibilities for air pollution control and make sure the tasks specified in the local plans for fighting air pollution to be completed before deadlines.

The production of checkered aluminum sheet

We can see many styles of checkered aluminum sheet on the building material market. But can you imagine how it is produced out? Do you know the producing process? Hereby we share with you some knowledge and hope you will find some useful information.

We can see the five producing steps for checkered aluminum sheet as following.

1.      Ingredients

To calculate the components of different alloys on the basis of exact needed alloy. Then we can match with a reasonable amount of raw material.

2.      Melting

Putting the ready raw material into the furnace according to the production requirements for melting, and then we can dispose of the slag and gas in the material by using degassing and shimming method.

3.      Casting

Under the condition of proper casting, we can cast the cooled aluminum liquid in the deep well cast system into various sizes of round casting rods.

4.      The extrusion of checkered aluminum sheet

It needs to extrude the heated round casting rods in mold. The wind cold hardening and heat treatment process and the artificial aging process should be applied to use for completing the heat treatment. Different types of round casting rods will use different heat treatment strength.

5.      Paint

Painting is the last step. Before painting, we need to oxide the aluminum checkered sheet in order to achieve the desired results.

If you need exact length of sheet, there can add a final step is cutting.

Above all is the producing process of checkered aluminum sheet. I think you will get some acknowledge of it. Besides of the checkered aluminum, we also hot manufacture the color coated aluminum, mirror aluminum such kinds of high quality coils and sheets. If you have interests on our product, welcome to our website.

Changzhou Dingang Metal Material Co., Ltd

Website: www.cnchangsong.com

Advantages of Colored Aluminum Coil in Outdoor Environment

It can be said that the invention of paint has a milestone meaning in the metal material anti-corrosion subject. In the daily life, paint is closely related to us such as cars, mobile phone shells all are painted surface. Paints not only play a decorative effect, but also play a very important anti-corrosion property. Colored aluminum coil is coating a variety of paint on the plain aluminum surface, and then improve the anti-rust, anti- corrosion properties of aluminum products. Also it can play a good decorative effect.

Aluminum alloy has the natural anti-rust and corrosion resistance effect in the outdoor environment, but it will lead to color shading problem because of aluminum alloy surface oxidation. However, the appearance of colored aluminum has just solved the problem of aluminum surface and further increase the life of aluminum coils and sheets. Using colored aluminum coil in the outdoor environment can increase the using life largely extend and beautify the product.

One of the advantages of color coated aluminum is the surface color won’t be changed, and it can keep bright and clean as a new by long time use. As we all know the Pre-painted steel coils will be soon rusted and corrosive after surface paint broken. Nevertheless, the color coated aluminum coil is not like pre-painted steel coil. Even if the paint surface is not good looking, there will be no corrosion and rust problem, which is one of the advantages of color coated aluminum coil.

The second advantage I would like to talk is the light density. Compared to steel, the density of aluminum is light, so it is often used in aerospace. In construction area the color coated steel tiles will be soon replaced by color coated aluminum, not only because the good anti-rust property, but also the light weight to small press for the steel structure.

For above advantages of coated aluminum coil using in the outdoor, we Changzhou Dingang Metal Material Co., Ltd mainly produces below specifications of color coated aluminum coils and sheets.

Color coated aluminum coil/sheet

Alloy: 1xxx series, 3xxx series, 5xxx series, etc.

Temper: H14, H18, H24, H26,H32, etc.

Thickness range:

Width range: 30-1250mm

Length: Any length suits 20’FCL

Coating: PE or PVDF

If you have any demand of our products, please contact us.

Changzhou Dingang Metal Material Co., Ltd

Website: www.cnchangsong.com

Galvalume Steel Corrugated Sheet

Production Introduction

Galvalume steel is the plateing coat of aluminum-zinc alloy armor plate,and its composition is 55% Al,43.3% Zn and 1.6% Si.The plate with smooth surface and excellent corrosion resistance of the atmosphere,which is 2 to 6 times higher than hot-dip galvanized sheet of the same thickness of coating.After through three processes,including payoff reel,crop shear and welding,enter into the continuous annealing furnace.During the annealing process,strips are heated closer to the recrystallizing temperature,and then heated to 20~50 above the recrystallizing temperature in the reducing furnace.After keeping the same temperature for 170s,strips are naturally cooled to the normal temperature in the slow cooling process.Afterward,strips enter into the ZN-AL pot through the elephant's trunk and begin in the hot-dip coating process.The optimum temperature range of the plating coat is 630-660℃.Coated with aluminum-zinc alloy,strips enter into the cooling tower by the steady roll and air knife.After fast cooled with wind or water,they are directly produced into Al-Zn armor plates.The general rate of cooling 30/s or so,and strips are cooled to about 60.

Product Advantages

1.Continuous Galvalume

Using techniques perfected by years of experience, Dingang Steel’s galvalume steel is formed on a line that is continuously galvalume to guarantee smooth, high quality end products. 

Dingang Steel is committed to offering galvalume steel with a broad range of base metal qualities, including commercial, lock forming, drawing, and structural quality. Moreover, each product undergoes a chromatic process for protection against rust.

2.Superior Formability

Highly workable steel sheet and strips are used as base metals for all galvalume steel sheet produced at the Cold Rolling Facility of Dingang Steel. The base metals in coil are continuously annealed, galvalume, and properly leveled. The galvalume sheet provides superior formability with base metals.

3.Consistent Quality

Production is carried out using a rigorous quality control process and a strict quality inspection based on high quality production standards. As a result, product quality, dimensions, and other properties strictly conform to customer demand.

Product Applications

1.Buildings And Constructions

Floor Decks,Ceilings,Duct Work,Roofing,Siding,Sashes,Beams,Fences,Verandas,Shutters,Awnings,Partitions,IndoorDecorations,Pipes,Ventilators,Sheds,Culverts.

2.Transportations

Body Pane,Air Cleaners,Oil Filters,Fuel Tanks,Containers,Highway Barriers.

3.Agricultures

Barns,Dryer Panels,Animal Houses,Hoppers.Bar Supporters,Irrigation Systems,Green Houses.

4.Others

Furniture And Office Equipment,Entertainment Machines,Car Ports,Garden And Storage Sheds

What Main Thickness Range We Supply?

What main thickness range we supply? Firstly, I would like to let you know the three kinds of thicknesses to color coated aluminum coil products. 1. Base material thickness, 2. Coating paint thickness, 3. Protect film thickness.

The thickness of color coated aluminum coil is related to the coating equipment. Normally the coating equipment can process 0.3-1.2mm thickness coated aluminum coil. This thickness range of coated aluminum coil is the most normal used specification which can satisfy most of the applications. Changzhou Dingang Metal Material Co., Ltd produces various thicknesses of color coated aluminum coils, and produces nonstandard sizes and width. Currently, we supply color coated aluminum coil and sheet at 0.2-1.5mm thickness range, and one side paint, two side paint, back side paint, etc.

The thickness control of color coated aluminum coil: commonly, one side paint thickness is approx 15um, double sides paint thickness is approx 25um and back side paint thickness is approx 5-8 um. The protect film is normally 0.05mm which is commonly PE protect film. We suggest customers to use mid viscosity or high viscosity protect film to protect the color coated aluminum surface paint in order to avoid the scratch problem when corrugation or cutting and bending process, etc. We would like to point out that PVDF painted aluminum coil must be double sides painted, and PE painted aluminum coil can be chosen one side paint and two sides paint.

The color coated aluminum coil thickness tolerance: The thickness tolerance of color coated aluminum coil can be controlled within +/-3-5mic which belongs to precise tolerance products. Changzhou Dingang Metal Material Co., Ltd supply kinds of high precise painted aluminum coils and sheets and ensure the paint thickness as well as thickness tolerance. We sincerely welcome your inquiry.

Changzhou Dingang Metal Material Co., Ltd

www.cnchangsong.com

Oxy Shiled Steel With Laser Cutting Used For Decoration And Sculpture

Oxy shield steel (corten steel/weathering steel)is a weather resistant high strength steel,which can overcome the disadvantage of corrosion and rust by alloying the unique treatment way.In the beginning,the exposed corten steel will occur rust just like common steel,but before long one protect film (corrosion layer) is formed on the surface by effect of alloy element,it would restrain rust continue develop.Meanwhile,the protect layer emerge rust red color making full of retro romantic feelings.The raw and earthy patina that develops on the surface of Corten Steel creates a desirable product for many commercial and residential clients,and lower price range when compared to powder coated aluminum.

Specification:

■Standard:

Cortan-A,S355J0WP,Fe510 C1K1,E 36WA3,WR50A;

SPA-H,B480NQ,Q345GNH And 09CuPCrNi-A

■Base Material: Hot Rolled Steel

■Thickness:1~300mm

■Width:300~4050mm

■Length:300~15000mm

Special Dimension Can Be Customized As Detailed Requirement

■Patterns: Many Patterns Can Be Chosen (Or Customized)

■Packing: Export Seaworthy Packaging Or As Customer’s Requirement

.Features As Following:

1)Weather Resistant: 4~8 Times Than Common Steel

2)Excellent Paintability And Machinability

3)High Strength And Corrosion Resistance

Due to the outstanding feature,corten steel can be widely used in many fields,such as sculpture decoration,curtain wall,boiler plant,marine ship,engineering machinery and etc.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

We are specializing in the production and sale of various specifications of the color coated aluminum plates. After years of rapid development, the company has 6 the most advanced preliminary roller coating production lines, and tension levelling, cleaning, coating, embossing, cross-cutting, slitting, wave cutting, etc. The annual processing capacity of us is more than 100,000 tons.

With advanced production technology, high-quality product quality, complete supporting Equipment, adequate substrate aluminum plate inventory, and the fastest and professional services, we are the first choice for our partner, our products sold at domestic and foreign customers.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.

The Reflectivity of Mirror Aluminum Coil

The reflectivity of domestic mirror aluminum coil is normally over 80%, but the reflectivity of imported Mirror aluminum coil is highly to over 95%. Consequently, the imported aluminum price is much higher than domestic aluminum coil. The so called imported mirror aluminum coil is named as Anodized mirror aluminum coil, and domestic mirror aluminum coil is commonly laminated mirror aluminum coil and polished mirror aluminum coil. If customer has no strict requirements on the reflectivity, we suggest you use our laminated or polished aluminum coil with low price and production cost. Oppositely, using anodized mirror aluminum coil to get a high reflective effect.

Changzhou Dingang Metal Material Co., Ltd supply high quality domestic mirror aluminum sheet, mirror aluminum coil with PVC film. We can provide cutting, filming and slitting process ability, etc. Our mirror aluminum plate’s reflectivity is approx 86% which can preferable replace users’ production cost.

Mirror aluminum plate is applied to various areas in life from lightings decoration to roof’s solar energy reflectivity, and to furniture, etc. In addition to these obvious applications, the mirror aluminum plate has other aspects applications which bring us a lot of convenience. It includes home appliance’s face cover, electronic products shell, furniture, kitchen, car interior and exterior decoration, signs, logo, jewelry boxes and other fields. Whether from our life or to our work, the role of mirror aluminum coil (sheet) is quite large.

Changzhou Dingang Metal Material Co., Ltd

Website: www.cnchangsong.com

PVDF Color Coated Aluminum Used For Roofing And Wall Material

Today we received our client from Korea sent photos of local construction building that used our color coated aluminum for the building outer wall and roofing.He is very satisfied with our color coating aluminum products quality and place new round order immediately.

Specifications:

Alloy: AA3004

Common Temper Grade: H18,H24 And H26

Standard: GB3880-97And ASTM3004

Thickness: 0.4-1.5mm

Width: 55-1600mm

Color Option: RAL Standard Color Or Customer’s Color Samples

Painting Option: PE (Above 18 Microns) Or PVDF (More Than 25 Microns)

Now let’s see the advantages of color coated aluminum roofing material:

1)Small Density:

The density of aluminum is only about one-third of steel.In the case of same thickness,calculate the final price on square meter basis,they are almost same.

2)Excellent Processability:

Due to moderate structural strength of aluminum,it’s easy for processing and convenient to installation,which can reduce construction cost.

3)Nice Decoration

Use aluminum for external insulation decoration,it have bright overall visual.With the addition of paint coating process,that make architectural appearance much more colorful and lively.

4)Long Period Of Validity

Because of the outstanding corrosion resistance,the period of validity can reach above 25 years under normal conditions.

5)High Recovery

The recovery rate can reach 85%.

We purchase the ordinary aluminum coils from Southwest Aluminum and Chalco Ruimin company,the paint are all purchased from PPG company.

With our strict quality control and professional service,our color coated aluminum alloy coils products earned respects from both consumers and competitors,and widely used in many landmark buildings.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

Our main products suppliable at present as following:

Galvanized (Zinc Coating) Steel,Galvalume (Alu-zinc Coating) Steel,Pre-painted (Color Coated) Steel,Mirror (Anodized) Aluminum,Color Coated (Pre-painted) Aluminum,Heat Insulating Anti Corrosice Sheet,Corten Steel With Laser Cut For Decoration and so on.

Should any of items be of interest to you,please let us know.We shall be glad to give you our lowest quotations upon receipt of your detailed requirements.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.