【China Aluminum Industry Network】1. In the process of aluminum alloy extrusion die trial die and aluminum extrusion process, we must pay attention to the following aspects:

A. Determination of mold temperature before extrusion of aluminum alloy profile, whether it meets the requirements of extrusion temperature, whether there is a core through heating or not (The placement of the mold in the heating furnace is very important. There must be a certain amount between the mold and the mold. Warming gap).

B. The aluminum extrusion mold must be aligned with the center to avoid the phenomenon of collapse and plug molding.

C. Use different extrusion speeds for different aluminum alloy profile molds to avoid unsmooth discharging. D. We must also pay attention to the quality of aluminum rods in the extrusion process of aluminum alloys, so as to avoid the occurrence of die collapse due to aluminum rod impurities.

2. Aluminum extrusion die repair is a very important part, but the first thing to consider in repairing the mold is its strength. It is necessary to repair the mold on the basis of the strength of the aluminum extrusion die. Less than the latter, welding is generally not used because the welding has a major influence on the life of the die. In particular, welding of the work belt can easily cause a shortened life. For the repair of profile speeds, it is generally faster to use slower speeds instead of slowing them down. At this point, the burden on the mold structure to a certain extent can guarantee its life. Of course, one of the ways to improve the service life of the mold is to increase the mold repairing level and reduce the number of test molds.

3. In the process of model sculpting, special attention should be paid to taking the blunt material, especially in some screw holes or more fragile places, otherwise, it is easy to smash the mold.

4. The aluminum extrusion die must be carefully handled to avoid bumping into the work belt. Before the mold is put into the warehouse, be sure to clean it, carefully and thoroughly inspect the mold for fine cracks and breakage.

5. For the finished molds, it is necessary to manage the process data effectively, such as the mold repair program, the details of the processing, and the extrusion process. Because these can become the follow-up complementary mold or similar mold copy object, this can effectively improve the mold machine pass rate.

In short, the increase in the life of extrusion dies depends on the perfect link between design, manufacturing, use, and subsequent maintenance. Relying on a single link can not effectively achieve the goal. Through the effective integration of various links, it is believed that the mold life can be improved accordingly.

We can produce the A/SA106B/C steel pipes according to the ASME SA106 and ASTM A106 standards, and we have been sold about 250000 MT the oversea markets at recent 10 years. YC has been granted a number of approval certificate by international institutions, such as Nuclear pipe certificate, 914mm Cylinder certificate, API monogram and certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC, approvals from Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL, Bureau Veritas, and permit of exporting to Europe as PED 2014/68/EU and AD 2000 certificates for pressure pipes, CPD (Construction Products Directive), etc.

Chengde have been working on the research.manufacture and sale of seamless pipe about 30 years, and the advantage of core competence is more prominent by integrate in technical.management and market with PCC.

1 The Piercing and rolling technology of Chengde possesses a number of patents in designing and manufacturing the equipment. The production is efficient and flexible, and the quality is stable.

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