Need to rectify the domestic paint packaging drum market
Therefore, when formulating the national standards for steel drums, mature parts from foreign countries should be adopted and the actual production conditions and raw materials in China should be taken into account to formulate a reasonable thickness and range of variations for various steel drums, thereby avoiding the manufacture of steel drums that do not conform to the national standard. The phenomenon.
First, the foreign unified planning paint packaging barrel
At present, in many developed countries, there are no specific packaging standards for coating products, such as Japan, the Federal Republic of Germany, the United Kingdom, France, the United States, etc. However, these countries have formulated a complete steel drum standard. These standards apply to the packaging of various chemical products and foods, and can also be used as a coating product packaging. Russia and the United States made specific provisions on the packaging of paint products.
1. Paint has special packaging barrel
The "OCT5798-78 (coating bucket, technical conditions)" standard formulated by Russia clearly stipulates that the standard is for the transportation and storage of paint. The standard stipulates that the steel drum is a shrinking steel drum with a capacity of 40 liters and a wall thickness of 0.9-1.1 mm. It is divided into four types of specifications: galvanized steel drums, steel drums lined with polyethylene, and inner coatings. Steel drums, uncoated steel drums. In addition, in Russia's "OCT9980.3-86 (paint packaging)" standard, it also put forward provisions for paint transport packaging, sales packaging and export packaging.
The United States PPP-P-1892-74 “Packages, Varnishes, Volatile Paints, and Related Materials Packaging and Marking†standard cites US federal regulatory standards, such as PPP-P-704 buckets (1-12 gallons for transport steel drums). ;PPP-D-732 metal barrel, 55 gallons for recycling (for non-corrosive materials transport); PPP-D-729 steel barrels (55 gallons for transportation and storage); PPP-D-705 steel barrels (for transport, greater than 12 And less than 55 gallons) and so on.
The standard also sets forth specific regulations for the suitability, leakage, reserved volume, packaging, signs and processes of containers (outer packaging, transport packaging), quality inspection, inspection responsibilities, and inspection of container packages. Specific regulations.
2. Packing drums are easy to implement
Japan, the Federal Republic of Germany, the United Kingdom, France, and the United States now have a complete set of steel drum standards that are suitable for the packaging of various products.
The content and format of steel drums in these countries are basically the same, but the text descriptions and format sequences are somewhat different. The basic contents are: the type, volume of steel drums, thickness and quality of steel plates used, technical requirements of steel drums , test methods, inspection rules and relevant reference standards in six parts.
The main features of the steel drum standards in these countries are:
1. From the data of foreign steel barrels, foreign steel barrels use steel plate thickness to classify steel barrels.
Moreover, according to the different parts of the steel drum, different thickness steel plates are used to save steel consumption. For example, (JIS Z 1601-84) classifies the thickness of a steel plate into four grades of H, M, LM, and L, and in the L and H grades, specifies the steel plates for the bottom, top, and barrel. The British Standard (BS814-74) classifies steel drums into seven grades, each of which specifies the thickness of the steel sheet. The regulations of the Federal Republic of Germany, the United States, and France are also similar to those of the above two countries.
2. Each barrel type has a variety of specifications. Each specification adopts a variety of plate thicknesses and does not strictly regulate inner contents.
3. In the steel barrel standards of these five countries, some technical parameters do not specify absolute values. Even if a numerical value is specified, it is necessary to write a space for “this clause can be negotiated according to the contractâ€. The standard terms are more principled and conducive to the implementation of standards.
Second, domestic paint product packaging chaos
In recent years, the output of our country’s coatings has reached more than 3 million tons and is divided into 18 categories. More than 100 kinds of paint products, more than 50 kinds of auxiliary materials.
In 1987, China formulated the National Standard for Packaging Marks for Coating Products. The standard stipulates: "The paint product shall be stored in a clean, dry and sealed container with a label indicating the product model, name, lot number, capacity, name of the manufacturer, and date of manufacture." The standard does not specify the packaging material, volume, inspection rules, etc., so that the national paint manufacturers do not have uniform requirements for coating product packaging.
At present, the packaging of our country's paint products is relatively confusing, and the containers containing paint products are varied and complicated in specifications. The packaging containers used are steel drums, aluminum drums, and plastic containers. Most of the paint products are flammable, explosive, and fluid products (except for water-based paints) and should be transported in steel drums. However, our country only has the national standard of GB325-84 “200 liters of closed steel drumsâ€, which is far from meeting the needs of the barrel making industry.
According to preliminary investigations, nearly 10 of the nearly 100 barrel factories in China have collected nearly 30 percent of the surveyed factories, according to the "steel barrel specifications survey form." At present, China's barrel making plants have obsolete workshop equipment and poor technology, many of which are still hand-machined. The noise in the workshop is very high, and the operating conditions of the workers are very poor. Therefore, the quality of steel drums cannot be fully guaranteed. Each year, the damage rate of the paint product packaging reaches 3% (requirement is 0.3%), causing great economic losses to the country.
In addition, judging from the products of the barreling factories surveyed, the volume of steel drums in our country is relatively high, ranging from 17 liters of kegs to 210 liters of vats, divided into 38 grades, and the diameter and barrel height of steel drums of the same volume and category. Not the same. For example, a 100-liter steel drum with a total of 31 barrel types has an inner diameter of 400-447 mm, and 15 different sizes are used respectively. The height of the barrel is from 525-870mm, using 20 different sizes respectively. Of the 31 drum specifications, the height and diameter of the barrels produced by only two companies are in line with the standards.
Due to the complex specifications of steel drums (some of which are hand-made drums), the variety of specifications for paint filling machinery has also been caused. There are many manufacturers of barrels, and the positions of the mouthpieces are not standard, and manual filling is also required.
In addition, China's G13325-84 steel drum national standards, the thickness of the sheet material for steel barrels is defined as: light barrel 1.25 mm, heavy barrel is 1.5 mm, and production practice shows that using 1.2 mm thick steel barrels, can Meet the actual application and standard requirements of the technical requirements. The use of sheet metal thickness in other specifications of steel drums is more complicated. However, from the perspective of China's barrel industry, the use of steel barrels is thicker than in developed countries.
In recent years, China has built 30 barrel production lines, including 20 barrel production lines and 10 convenience barrel production lines. Each factory site adopts the steel barrel standards and convenience barrel standards introduced by the country, resulting in even more confusion in the standards adopted by the barrel making industry in China.
Third, paint product packaging needs to be unified
1. Formulate a complete set of national standards for steel drums
From the perspective of several advanced industrial countries, they formulated a set of national standards for steel drums very early to suit the needs of domestic product packaging. However, our country is different. So far, only GB325-84 is a national standard for steel drums, which is extremely incompatible with China's industrial development. Therefore, China should quickly formulate a set of steel barrel national standards that are both advanced and in line with China's national conditions. This will not only save the country a lot of manpower and capital, but also make the packaging containers (steel drums) unified, standardized and rationalized, to meet the needs of China's various industries for steel drum packaging.
2. Unified paint product packaging container
Most of the paint products are dangerous goods and are flammable and explosive. If the container is not good, it is easy to leak and break, which not only causes serious pollution, but also easily leads to dangerous events such as explosion, causing great losses to the country and the enterprise. From the point of view of domestic and foreign coating product packaging, steel buckets are currently used (except for waterborne coatings, glass bottles and plastic containers should be eliminated as paint packaging containers, and national standards such as general rules for paint packaging should be formulated as soon as possible).
3. Improve the thickness of the barrel steel
The thickness of steel plates used in China is obviously higher. According to foreign data on steel barrels, the current tendency to use thin steel barrels is becoming more and more obvious. If the output of thin steel barrels in the United States has reached 1/3 of the output of steel barrels, each thin steel drum can reduce the weight of steel drums by 15%. The thickness of 60% of 200-liter steel drums was changed from the original 1 mm to a wall thickness of 0.8 mm and the bottom of the bucket was 1 mm. In order to make the strength of the steel drums reach the same strength as the original steel drums, they improved the steel drum design structure. If the barrel body increases corrugation, the bottom of the barrel and the barrel body are changed to a seven-layer curling structure, which greatly reduces the weight and manufacturing cost of the steel barrel, and correspondingly reduces freight costs. Therefore, when formulating the national standards for steel drums, mature parts from foreign countries should be adopted and the actual production conditions and raw materials in China should be taken into account to formulate a reasonable thickness and range of variations for various steel drums, thereby avoiding the manufacture of steel drums that do not conform to the national standard. The phenomenon.
4. The convenience barrel should also set national standards.
As conical buckets can be stacked for easy transportation and storage, the use of convenient buckets is very popular at home and abroad. However, the cost of such buckets is slightly higher than domestic steel drums (3-4 yuan) and recycling should be promoted. Even if it is used once more, it can bring huge economic benefits to enterprises and countries. Early foreign countries have formulated national standards for convenient barrels, and China still has no corresponding standard. In recent years, some of the paint factories and barrel factories in China have introduced foreign convenient barrel production lines and implemented their respective barreling standards. Therefore, China should also formulate national standards for convenient barrels as soon as possible.
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