How to Reduce Aluminum Waste When Squeezing Aluminum Materials? -WJW Aluminum Supplier Aluminum

The key to improving the finished product rate of aluminum profiles is to reduce and eliminate waste products. Although geometric waste products are inevitable, they can try to minimize it. For this reason, it can be effectively controlled and improved the finished product rate of extrusion.

Measures to reduce geometric waste

Correctly selecting steel ingots is the main measure to reduce craftsmanship. The length of the steel ingot is not calculated before squeezing, but calculated before squeezing.

At present, most companies use long sticks to heat aluminum rods, which are reduced compared with short rod heating furnaces. Due to the changes in the thickness of the mold wall, the length of the casting is more flexible and accurate, and the rate of finished product is greatly improved. However, after using a long stick hot air furnace, many companies ignore the calculation of the length of the casting, and directly hand over the work to the operator to control it. The operator often observes the length of the material based on the experience of the lower rod. If the difference is large, it will continue to be adjusted. Generally, about 3 rods are required to obtain accurate length. In this process, a large amount of waste was generated, which not only reduced production efficiency, but also reduced the income.

The correct method is that in the initial production of the mold, the length of the steel ingot is calculated by the process control department. When the mold is produced multiple times, the length of the last production stick recorded on the card will be Observe the length of the material when producing materials. If there are different fine -tuning, the second stick is very accurate. The data shows that the use of long sticks and heat shears can increase the output by 4 percentage points. In actual production, it is completely feasible to increase the output by 2 to 3 percentage points.

Measures to increase production from technical level

Improving the level of mold design and manufacturing, and reducing the number of mold tests is an important technical measure to increase product output. Under normal circumstances, the cost of the test mold is 1 3 ingots, and the output decreases by 0.5%Due to the low level of mold design and manufacturing, some products can only produce more than 4 finished products, and the finished product rate is reduced by 25%, which not only causes economic losses. And due to repeated mold tests, the production cycle is extended.

Modern molds propose the concept of zero model tests, that is, after mold manufacturing, it does not need to test the mold. It can be directly applied to the product that is qualified for machine production. Using simulation design software to perform finite element analysis, the design can be completed on the computer. Through the computer simulation, mold cavity processing is completed in the automatic processing center. The entire mold processing is completed at high precision, so the mold quality is very high.

Properly increase the squeeze coefficient of aluminum profiles and increase the output of aluminum

Each aluminum factory has a series of machines. Each factory determines that the product is produced on the corresponding machine according to the squeezing ratio of the product, the length of the cold bed, the external part of the product, the length and diameter of the extrusion cylinder. Practice has proved that products of the same specifications are produced on the machine on different tonnage extrusion machines. Due to the different squeeze coefficients, it has a great impact on the micro structure, performance and production efficiency of the product, and the product output will be different. When the tonnage of the extruder is large, the extrusion coefficient, high yield, and the cost of extrusion are approaching.

Improving the quality of ingots is the prerequisite for improving the rate of finished product

The ingot is a raw material for squeezing production. Defects such as uniform steel tissue, small grains, residue -free, pores, bias, cracks and other defects not only reduce the pressure of squeezing, improve the squeezing speed, and improve the inherent quality of the product. And reduce defects such as surface bubbles, pores, scratches, cracking, and hemp. Small slag can be discharged through the slit of the mold belt, but it will cause pear marks on the surface of the profile, causing a waste of a certain length. However, the larger slag debris will not be excluded in the slit of the workband, resulting in the cracking of mold plugs or products, and mold replacement, which seriously affects the product output.

When the profile is straight, many companies do not design the corresponding pads, especially some large wall hanging profiles and hollow profiles, resulting in too much head and tail of the profile. When the finished product is sawn, the deformation part must be cut off to reduce the finished product Rate.

The pads can be made of hardwood or aluminum blocks. The design should be designed to minimize the specifications of the pads and increase the universality of the pads. For alien profiles with long and closed section, when the pad is inserted into the sealing cavity, the supporting rack should be placed on the part of the hanging wall. To reduce the deformation of the length. The fixture must be designed by special personnel, managed by special personnel, and used by workers.

At the same time, in order to prevent workers from using cushions because of too much trouble, it is necessary to establish a reward and punishment mechanism linked to products and wages.