Development Trend of Steel Barrel

China's accession to the WTO, and vigorously promote green packaging, steel drums is no exception. Development trend of international steel drums , steel drums in addition to the whole production process and the recycling aspect has been some progress in the field of environmental protection , the drums began to appear in our new product development .

Because drums product change is a relatively large change, related to the worldwide recognition of the versatility and . As China's steel drums big gap between the developed countries and the international standards , the structure also has a lot of irrationality , is not conducive to environmental protection . With foreign economic and trade development , export products more and more, we have more and more steel drums were foreigners turned away. To meet the requirements of international trade , China has emerged a variety of standard production using foreign steel drums products. Ten years ago the international standardization working group on the introduction of the ISO standard steel drums , but until today, when our foreign users drums were rejected, we have to adopt international standards to produce the steel drums . Only the development , companies can gain a foothold and products only improve in order to survive and continuity throughout the ages . Therefore, the development is of overriding importance , stagnation is not conducive to the progress of packaging products steel drums .

Over the years , our products are 200 l drums closed steel drums based, supplemented by small drums , the product structure has not changed much . Its main features are:

1 . A cylindrical barrel . Such a shape is the shape of the traditional drums , of course, from the production process is the most simple, but the greatest strength of steel drums .But in today's international competition , from the direction of view to reduce costs , it take up too much space, transportation , and the gap between the barrel and the barrel is obviously extremely uneconomical .

2 . Convex ring bars . Convex cylindrical barrel body of steel drums ring bars for added strength . But it also increases the maximum diameter of the drums a lot , also resulting in a waste of space transportation .

3 . Full open drum bung diameter is too large . For a full open barrel , when coupled with the lid and bung steel drums closure after bung steel drums has become the largest diameter diameters , also caused a waste of space transportation .

4 . Material thickness . In the national standard GB325-2000 steel drums , a lightweight barrel material has been reduced. Original 200 l drums with 1.5mm thick steel plate , and later becomes 1.25mm, and then later becomes 1.2mm. Now , 1.0mm thick steel drums has been very common .

5 . Planar barrel roof, so that the contents can not be ranked closed steel drums clean shortcomings , causing the contents of waste and environmental pollution , but also to reuse drums brought trouble.

After joining the WTO , the international commodity packaging and transport more and more, the corresponding national standards are increasingly failing to development of the situation , the international fashion drums structure more and more into the country , and this international popular drums structure of export commodities has become the preferred packaging. Current trends in steel drums has become increasingly clear that the structure for our traditional drums is undoubtedly the biggest challenge, so many domestic enterprises have to adjust product structure cooperage to meet market needs.

In view of the structure of traditional drums , these new steel drums structure trends mainly in the following aspects.

First, the international standardization diameter drums

Drums is a metal packaging , more durable due to its material , it is not in use, as the other package that is only used once. The majority of re-use drums , often need to be shaped drums and repair , but because our drums and international standards on the drums there is a big difference in size , so the drums again after the repair has become export difficult because of large-scale production line repair drums of different sizes are difficult to deal with steel drums . And imports of foreign steel drums and then to repair the same but there are some difficulties.

With the development of foreign trade and economic , transport drums of different sizes will also become a major problem. 200-liter steel drums in the usual case , in accordance with ISO668 standard , European standard steel drums have a diameter of the best , such as the internationally accepted standard diameter steel drums φ571.5mm, which can be grouped in ISO containers stacked side by side , and after the entire container filled with no extra gap , so that transport can be accounted for most reasonable stacking space .And our national standard diameter of 200 l drums φ560mm, due to size differences can not achieve maximum use of packing space , virtually wasted shipping space and increased transportation costs.

As drums can not be reused , so that energy and resources are not fully utilized , resulting in unnecessary waste , and waste drums but also on the environment in which we live have adverse effects , present, with environmental protection further , it is imperative to change the structure size drums , is not a very important task. And this change in size , mainly steel drum diameter of international harmonization . Currently appearing in the country dedicated container 208 l drums , steel drums and other international standardization are manifestations of this trend .

Second, the drums became increasingly clear thin

With economic development and scientific and technological progress, improved steel material , production process to constantly update the material thickness of steel drums from thick to thin development . From the development of standards for domestic and international steel drums , we can see the difference . Of 200 l drums currently widely used 1.20mm thick sheet steel , which is more than the original 1.5mm been a bit thin , and foreign , mostly about using 0.8mm thick steel plate , and barrel body, bottom of the barrel , barrel roof with different thicknesses a thin plate.

A few years ago , there are some domestic enterprises have done thin steel drums test, the test results can meet the quality requirements of national standards . However, due to the concept of equivalent packaging for many people is not acceptable , so hampered by a lot of users that this is shoddy work, worry about product quality is affected. In fact , steel drums thinner than cutting corners, not shoddy products, product features is guaranteed under the premise of improving the structure and processes, deep processing of the results. Thin steel drum is a symbol of technological development .

Now, with the prices of raw materials , cost reduction has become the biggest reason thin steel drums , steel drums getting so thin there is a market , users also like to accept this point , it seems thin steel drums have become non- stop when the trends .

Three , 200 l drums full opening necking welcomed by foreign investors

In recent years, 200 liters barrels full opening of the market is growing, mostly for export packaging jam, ketchup and solid ( semi-solid ) chemical products. Full opening drums of closure for the bolt closed and the lever-type closure two kinds . Ordinary full open barrels have a common characteristic , that is, when closed after installation , the top portion of the outer diameter of the barrel greatly exceeds the capacity of closed barrels with a maximum outer diameter , which makes the drums in the cargo occupies a greater volume . In practice, they often have to put five rows of the container is not enough to put four rows of spare , allowing users to big headache .

In other countries, in order to solve this problem, the bucket at the top of the barrels for a necking , reducing the diameter of the barrels , so that after installation bunghole closure ring bars maximum outer diameter smaller than the diameter barrel . Thus, to solve the bung diameter is too large due to transport space -wasting issues .

In recent years, there are a few companies should users need to make up 200 liters necking barrels, drums diameter remains as the national standard φ560mm, bung necking at the inner diameter φ530mm. Such drums greatly welcomed by foreign investors , it solves the normal full opening drums solve the problem of wasted space transportation , is gradually moving towards universal and popular . Figure 1-1 shows the schematic for the opening of reduced diameter barrel .



Fourth, dedicated container drums ("W" rib barrel ) Domestic settled

Dedicated container drums are introduced by the European , first by Italian companies in China to promote GMI , because it improves the structure type GB drums in transport footprint unreasonable question, so affirmed by the majority of users .

The main features of dedicated container drums barrel body is a ring ribs are integrally into the barrel , that barrel body ring rib height reduced circumstances , in the ring ribs and barrel body parts connected to the annular recessed inward manufactured groove, so that the maximum diameter of the ring bars at the top smaller than the original standard 5mm, former GB drums ring ribs outer diameter φ585mm, while the container ribs outer diameter of the ring of steel drums φ575mm. So that the maximum diameter drums drums GB smaller than 10mm, do not underestimate this 10mm, in container transport , this steel drums can be applied to maximize the space , to achieve the most economical transportation costs. Shown in Figure 1-2 .



Figure 1-2 "W" rib barrel barrel body corrugated ring bars schematic

Since the cross-sectional shape of ring bars like "W", so the domestic cooperage industry often call it W-shaped ring bars barrel. The ring bars not only reduced the maximum diameter of the drums , but also enhances the barrel body strength , but also the shape of the barrel body more beautiful it. In other countries, the majority of container drums are removed from the body of the corrugated barrel , making the barrel more beautiful.

Five , 200 l drums column tapered opening market is booming

In recent years, China's western region of tomato sauce, due to direct sunlight for a long time , good quality, and thus fame in Europe and America . Now , Northwest Territories annual export ketchup , jam 600 million barrels, and all use the Italian standard tapered barrel, Xinjiang Chand company also imported from Italy at all costs conical barrel production line , creating a Chinese production 200 l conical barrel products precedent.Currently, 200 l conical barrel in the western region of Xinjiang, Gansu , Inner Mongolia , Shaanxi, Ningxia and other places selling very well , much of the potential demand .

200 l conical barrel is full open barrel, its bung diameter φ553mm, bottom of the barrel diameter φ516mm, barrel 970mm and 990mm high and two kinds. Barrel body at a distance of 100mm barrels Department has a ring ribs on the bottom of the barrel with four circumferential ribs and six radial ribs and tendons on 24 φ4mm hole. Bottom of the barrel hole is the role of the exhaust when loading and unloading , as well as between the cargo tank wall and the layer of plastic bags . Barrel body is the role of ring bars storage when empty bucket level when set limits . Conical barrel is lever-type closure closure , barrel body and the bottom of the barrel generally use 0.7 ~ 0.8mm cold rolled steel plate, both internally and externally coated with amino paint , exterior green , the internal red rust . The most important feature is the tapered barrel Barrels easy transportation , low cost, during transport , each stack of barrels of 14 , each pallet 4 pile , a car can hold 10 trays, an empty bucket can hold 560 cars , while the ordinary drums a car can only pretend not to over 100 steel drums , showing its greatly reduced transport costs , which for the empty bucket long-distance sales and transportation provided favorable conditions. Figure 1-3 Schematic conical barrel .

Another big advantage of the tapered barrel is the size of the international standardization in the ocean transportation of containers in the space occupied by the most reasonable , is currently one of the most popular drums .




Six , special types of steel drums acclaimed

1 . Plastic composite barrel

In recent years, the rapid development of plastic composite barrels , which is enclosed in an ordinary steel drums inside a plastic bucket as a liner , with both the strength of steel drums , plastic drums but also has corrosion resistance . More used to contain corrosive chemicals, flammable and explosive dangerous goods , etc., in the south of our country around the wider application .

The barrel production , the first plastic drums drums drums into the body, and then at the ends of the barrel with a steel drum top and bottom of the barrel for seaming to become one. General plastic composite barrel bung steel drums only one large hole in the plastic bung exposed outer barrel , barrels and heads are plastic bucket accessories.

2 . "ODD" type drums

China's current closed steel drums , barrels and barrels bottom are flat top , bung barrel from side and vertical distance of 75mm around the corner there , no matter how tilted the drums , liquid barrel is always not quite clean. Practice has proved that the barrel is always 0.5 to 1 liter residue. Not only cause the contents of waste, and to re-use or recycle causing trouble, and pollute the environment. And this flat flat structure, the steel drum stand up in the open air , often due to poor plot rainwater barrels by sealing the mouth caused by bleeding within the stainless steel drum or cause contamination of the contents , which also caused environmental pollution and resource waste.

To solve this problem , the European steel drum manufacturing industry has designed a special barrel roof structure , they are referred to as "ODD" barrel, the barrel structure five years ago at an international technical workshop on drums appear in the United States and Europe more popular . The structure of the barrel , when drums bung up straight up , the injection port and vents are higher than the barrel roof plane, while the inlet vents taller than they are suppressed by the central barrel roof drainage grooves to achieve , when the drums dumped liquid , the liquid flows along the barrel roof drainage trough at the lower inlet , thus the barrel of liquid drained . Figure 1-4 "ODD" lid Fig.


Figure 1-4 "ODD" Bung Schematic

For our standard drums residual contents , adopting "ODD" barrel structure to solve is the most economical , because if the ISO standard steel drums , then, to change the structure and size , after all, much more.

Seven , closure type gradual diversification

Our original drums , mouth dominated by closed steel drums , for many years without major changes. Practical applications , as well as full open barrels, opening in barrels, buckets and other small openings ; according to the type of closure , a bolt-type , closed hoop , fixed jaw , seaming type. From the international economic situation , our country is still not out of the old model . With economic development , but also an increasing number of fake and shoddy goods , followed by anti-counterfeiting technology is also increasingly superb , therefore, the use of packaging drums vendors who would want to have a more convenient and safe drums , so mouth the development will be a big change. At present the international community has applied to steel drums there have been many anti-theft security closure patented technology, not only easy to open , and the technology is relatively mature . At present, China is still not adopted , but in some upscale keg package adopted to varying degrees .

Due to the current use of closed steel drums up the bung closure member is a screw top ring and barrel laminated structure , so often so Leakage at leaving the contents pollute the environment. To solve this problem , some people abroad and the barrel top inlet vents with integrated closure , that is, directly on the barrel lid punching and flanging roll thread . Of course, this manufacturing process is relatively complicated structure , there is no formation of large mass production.

India, a company designed is called an "S" bung laminated structure technology, is currently the most advanced bung closure technology, which uses technology to necking spirals bag in the middle, even in the barrel mouth after the drop test and will not leak , coupled with the company's GRT convolutions technologies, the traditional closed steel drums closed appliance has a new life. This technique worked in Shanghai last year the international technical seminar drums exhibited no domestic production and use.

Eight , drums looks more colorful paint colors

At present, China 's steel drum has been greatly enriched the colors , the previous common monotone color has been rare , and now people advocating the natural color has replaced it , such as sky blue, navy blue , forest green, orange and so on , so that the refreshing , it makes our family more colorful drums . This is not, in recent years more and more chromatic Daxin barrel is a tendency to produce chromatic barrel, many companies put the original electrostatic painting equipment eliminated, replaced by a high-pressure airless spray , enabling multicolor barrel production .

Recently , spray barrel will become a new fad, it is the use of electrostatic spraying technology to plastic powder sprayed into the tub surface , and then through high temperature melting the surface of the barrel after solidification techniques , spray barrel is not only aesthetically beautiful , but adhesion strong, and has good corrosion resistance and weather resistance, high-grade steel drum surface coating technology development .

At present, China's use of tinplate production of small drums , colorful Indian Railway has spread . Foreign material has a large capacity of Indian iron drums in the near future we will be there . New pre- coated membrane has been developed in foreign countries for many years, has only just begun in our country at present , and mostly used in construction and decoration. Future production for steel drums , the drums produced not only eliminates coating step , and more importantly to reduce the environmental pollution caused by coating , but also the quality of the coating drums improved aesthetic appearance .

Nine , drums capacity polarization trend has now

Because steel drums incomparable advantages , making it more and more people of all ages, it was strong metal texture , rugged construction and can be used repeatedly characteristics, as well as easy to implement gentrification form of packaging , so that people are giving its greater hope . So people want it small number , directly to end users , not only eliminates the hassle of packing and handling are more convenient to use . For example, in recent years, the growing popularity of four liters rectangular bucket , 20 liters , barrels and other convenience , we provide people with more and more convenient. In the future, this trend will become more clear , and because of the use of different types will be more .

Because the price relative to the drums some other conventional packaging , it is a little bit high . In order to reduce packaging and transportation costs , ease of recycling used multiple times , recently there has been a large foreign container drums , such as 500 liters and 1000 liters container barrel . As used in the handling of these barrels forklifts and other operations, so packaging the extent of damage in terms of much smaller than conventional drums , recycle reuse of higher value. Dressed the same capacity with respect to the goods , the packaging costs less. Such large-scale packaging barrels in the future development will occupy a place. Because it is more conducive to international long-distance transport .

Ten , the international standard steel drums steel drums are the main trends of the future

In recent years, the International Organization for Standardization (ISO) introduced the first steel drum standard , which indicates that the development of steel drums with the international standards.

There is no national standard steel drums breakthrough development for many years , thus limiting the development of the industry of steel drums pace , so is bound to be eliminated.Both from advanced technology, or from the structure is reasonable in terms of international standards are the national standards can not match. GB sizes of steel drums and other containers in international transport often been criticized because of wasted space and restrictions, and ISO international standard drums size is optimal because it maximizes the use of the standard container space, and the most reasonable , subject toworld-wide welcome and promotion.

Not only is the international standard drums barrel sizes are reasonable, more importantly, its top and bottom of the barrel barrel structural steel drums with GB incomparable advantages . Its barrel top and bottom of the barrel is not as flat as the national standard steel drums , but bulging outward , forming a similar spherical barrel roof, it is to withstand internal and external pressures to achieve the best results, and when when pouring out the contents of drums , is easy emptying , which is of utmost importance for the environment , because it is impossible to empty drums , closed , not only the entire contents of a waste use, and reused for drums brought trouble .

So, who is the first to adopt international standards, whoever first got into the international door key , so the use of international standards to produce steel drums steel drums , steel drums has become a domestic enterprise development and based on the fundamental and trends