1 Design determines the final effect of the product
Beijing carton factory is especially important for the design of carton products, otherwise it will be difficult to meet customer requirements, and returns may occur, causing significant losses to the enterprise. I think the marketing department should pass all the information of the customer to the process design department after receiving the order. These include relevant requirements such as layout requirements, specifications, box structure, contents and weight, and stacking layers. After designing by the design department, it can be passed to the manufacturing department to complete the realization of the product.
1) Calculate the maximum stacking load Ps that the lower carton can withstand
That is, Ps = (Nmax-1) · G, where Nmax is the number of stacking layers and G is the weight of the contents and the box.
2) Select the appropriate coefficient K
According to the requirements of SN / T0262-93 inspection rules for export corrugated cardboard packaging, when the storage period is less than 30 days, K = 1.6; when the storage period is 30-100 days, K = 1.65; when the storage period is more than 100 days, K = 2.
Of course, for the sake of **, the ** coefficient is usually taken as 3 or more. However, the ** coefficient is too large, and the various indexes of raw materials are relatively high. The price of paper will rise significantly, resulting in increased costs and adverse market development. Furthermore, if the coefficient of ** is selected too large, there will be excess quality, the coefficient is too small, and quality problems such as collapse of the box will be caused. Therefore, according to the actual requirements of customers, select the appropriate coefficient.
3) Beijing Carton Factory calculates the maximum compressive strength value P to be achieved based on the coefficient
P = K · Ps
4) According to the formula of Kelicutt, choose the right combination of paper
That is, Px · F = P (calculated)
Therefore, Px = P / F, where F is a constant related to the length of the carton periphery and the corrugated shape, which can be obtained by looking up the table. Px is the comprehensive ring compression strength value of corrugated cardboard, Px = (R1 + R2 + Rm1C) /15.2
If the ring pressure index and gram weight of any one or two materials of R1, R2, Rm1C are known, the ring pressure index and gram weight of the third material can be obtained to achieve the purpose of reasonable paper matching.
2 Good process control at Beijing Carton Factory is the guarantee of product realization
Whether the product designed by the process technology department has good implementation, each process is critical to the strict implementation of the standard. Therefore, requiring the squad leader of each process to supervise the product quality of this process in time is the guarantee of the final quality of the product.
In addition, the quality supervisor must conduct irregular inspections to correct and deal with the violation of the process in time to ensure the strict implementation of the process.
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