About 16,000 200-gallon steel drums have been stored for various reasons by the Group’s affiliated metal packaging companies and material supply department warehouses. Due to the color of the paint on the outside of the barrel and the internal rust, the market sales are very difficult, resulting in considerable corporate assets. The backlog of the quantity. At present, the market price of steel products remains high, and the price of steel barrels is difficult to increase due to market competition, making the pressure of metal packaging companies greatly increase. Therefore, it is imperative to improve the process, tap the potential, and increase income and reduce expenditure. Based on past experience and relevant data, it is probable that the old batch of steel drums will be put into the market after chemical treatment and re-spraying. The feasibility analysis for this is as follows:
First, processing requirements:
1. Clear the external defects of the steel drum;
2. Remove the old paint layer outside the steel drum;
3. Eliminate rust inside the steel drum and must not have anti-rust phenomenon. The treated surface is single iron gray;
4. After the repainting of the steel drum, the technical indicators of the steel drum are basically reached.
Second, feasibility analysis:
It is relatively simple to implement the process of eliminating the defects of the external manufacture of steel drums and the repainting of the outside of the steel drum. Manual grinding and conventional spraying methods can be used. It is mainly difficult to remove the old lacquer layer inside the steel drum and the rust inside the steel drum. That is to say, it is very difficult to use the mechanical treatment method after the steel drum is formed. In particular, the inside of the steel drum can hardly be implemented. The analysis considers that only chemical treatment is appropriate. According to previous experience and existing conditions, the external steel drum can be treated with special paint remover. This kind of formulation can be produced by some chemical manufacturers in the mainland, but due to the small amount of the market, it is rarely sold; the interior of the steel drum is dedicated. The four-in-one" metal phosphating solution is processed, and this treatment solution also needs a targeted configuration. This can achieve the purpose of both removing the old paint layer of the steel drum and the internal rust spot without generating back rust. Through the contact and research with the chemical manufacturers in the Mainland, it is entirely feasible to use special chemical formulations to remove old paint layers and internal rust spots on the outside of steel drums. To achieve this goal, it is necessary to adopt corresponding auxiliary measures, ie, process tests and process planning. , processing facility preparation, safety operation procedures training, etc.
Third, process planning:
1, process planning:
Preparation of treatment technology → Manual classification of steel drums → Removal of old lacquer layers from steel drums → Cleaning → Dip rinsing and rinsing of steel drums → Test leaks → Drying on steel drums → Drying outside steel drums → Inspection of steel drums off the line Library.
2. Implementation instructions:
1) Preparation of treatment technologies including preparation of chemical formulation process tests and treatment facilities (treatment tanks, lifting and pouring devices, vacuum suction devices, etc.);
2) The manual classification and polishing of steel drums refers to the classification operation of the steel barrels with obvious welding defects and the appearance of serious defects that cannot be repaired;
3) The removal of the old paint layer and the internal rust spot on the outside of the steel drum shall be performed continuously in the treatment tanks according to the regulations;
4) Ensure that there is no residual liquid and impurities inside the barrel after the steel barrel is treated;
5) After the steel drums are processed, they shall be sprayed and sprayed in time. The residence time shall not exceed 24 hours.
Fourth, economic analysis:
The existing backlog of steel drums is difficult to sell at 120 yuan per market. If the above process is used for processing, the total cost will not exceed 15 yuan, and the average sales will be 150 yuan per truck. Each bucket can generate 15 yuan profit and 16,000 barrels. It can generate 240,000 yuan of profit and activate assets of 2.4 million yuan. Therefore, the realization of the above scheme is of great significance.
The initial budget processing costs are as follows:
1, paint remover 13 yuan / kg, each barrel consumes 0.12 kilograms, the cost is 1.56 yuan.
2, rust phosphating solution 10 yuan / kg, each barrel consumes 0.1 kilograms, the cost is 1 yuan.
3, paint spray cost per barrel is 3 yuan.
4, technical preparation is expected to cost 0.3 yuan per barrel.
5. The estimated cost for each barrel is 13.86 yuan.
The total processing fee per barrel is 13.86 yuan.
V. Implementation effect
The above-mentioned stripping and rust removing and phosphating chemical conversion processes should be mature processes, but it is the first time for me in our region, especially for the treatment of steel drums, and our company does not have the preparation conditions for the required treatment liquids. Therefore, it takes the form of an external association. After implementing the above scheme in collaboration with a chemical manufacturer in the Mainland and submitting the samples of the process test to the user's evaluation, a preliminary treatment of 200 old steel barrels was conducted and submitted to the user after passing the test. The processing cost of each barrel is completely controlled within 15 yuan, achieving the expected goal. It has thus made a good start in achieving salvage losses, revitalizing assets, reducing the burden on enterprises, and enhancing the vitality of enterprises.
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