How to maintain the aluminum profile mold opening mold?

1. Nitriding treatment should be carried out before the mold is used, the purpose is to ensure the toughness of the mold, improve the hardness and wear resistance.

2. The working belt should be polished before the mold is put on the machine.

3. Pay attention to the correct method of boiling the mold, and do not immediately put the mold into alkaline water for washing.

4. The holding time of the mold is within the range of 2-3h, not more than 8h5, strictly control the alloy composition of the aluminum ingot, and optimize the extrusion process.

Due to thermal expansion and cold contraction, after discharging, the specification of the profile will be about 1 silk meter = 10 meters smaller than the mold specification. Square pipe, round pipe, the new mold comes to measure the wall thickness first, and then see whether the working belt is flat, before you can start to use or repair.

1. Fast (bulging): where the fast is blocked or the place where the grinding is slow, the guide port is milled in the feeding direction of the fast side of the working belt (slowed down), and the discharging direction of the working belt is slow or the working belt is narrowed (accelerated);

2. Slow (recessed, there are also slow drums): the place where the grinding is slow or the place where the plugging is fast, the opposite direction is the same as above (the solid and the hollow appear on the same aluminum profile, and the solid is slower than the hollow discharging at the beginning, and then it follows);

3. The material head is not fast, and then the fast is falsely fast: the work belt is uneven, grind in the direction of making it slow, and let it work flat;

4. The material head is not slow, and then the slow is falsely slow: the work belt is uneven, grind in the direction of making it fast, and let it work flat;

5. Twisting with teeth: grinding in the opposite direction of its twisting direction (because in which direction you grind, it will twist in which direction);

6. The groove with groove is small and large: grind a storage hole on the side of the working belt near the groove, and block the area around it;

7. There are scratches on the profile: the pilot port before polishing after the nitriding test of the new mold, the rod is not good, and the work is rubbish;

8. The aluminum alloy profile is ribbed: the mold working belt is cracked, washed off, and there are micro scratches to return to the factory for maintenance, and the grinding needle is used to grind left and right around the scratches of the working belt to make it slightly concave;

9. The wall thickness is uneven: knock on the side where the wall thickness of the mold is thin and the side where the wall is thick;

10. The radiator and similar radiator teeth are slow and fast: if it is slow, open the storage hole near the top of the tooth, and block it if it is fast;

11. The small holes with screw holes and similar ones are slow and fast: open the deflector holes, polish the working belt of the small holes, and plug the diversion holes.

The problems and solutions of aluminum extrusion dies are as follows:

1. The aluminum profile produced by the extrusion die should meet the size requirements, first of all, to ensure the uniformity of metal flow, and the extruded profile often has a concave phenomenon, resulting in the entire large surface subsidence and the flatness is not up to standard. Through a large number of practices, it is concluded that the profile with a deep and larger slot is caused by the insufficient metal supply of the slot. When manufacturing aluminum extrusion molds, it is necessary to ensure that the mold slots are straight enough, and if the trial production is not qualified, the slots should be moderately widened.

For large materials with low groove depth and width, as long as the working belt is reasonably designed, the diversion groove is processed according to the angle of the die neck, and the metal flow rate can be controlled to avoid the concave phenomenon; For profiles with wide and deep grooves, the two corners of the diversion groove are deepened to ensure that the metal flow at the two corners of the groove is uniform with the middle.

2. In the production of angled profiles, if the mold is not pre-deformed (pre-opened) design, after the extrusion profile is stretched and straightened, the profile angle is often 1-3 ° smaller than the product requirements, and the mold needs to be deformed by 1-3 ° in the profile hole of the mold workpiece in the design and manufacturing process, and the profile deformation changes with the change of the outer circle. Once the angle of the profile is still small (closing) in the case of pre-deformation, the following two simple repair methods can be adopted: first, if the angle is small (closing), the flow can be promoted on the inside.

Second, the current resistance block can be welded on the outside. The choice of method depends on the surface treatment of the profile.

3. The production of profiles with thick wall thickness is produced according to the conventional shrinkage water, and the metal supply at the end of the profile is insufficient, resulting in the error of shrinkage, although the size of the mold hole is the same, but the product size does not meet the requirements. There are several important factors in controlling the size of the profile. Firstly, according to the tonnage machine to which the deflector belongs, combined with the diameter of the extrusion cylinder and the aluminum rod, the largest and optimal external circumscribed circle was selected, the feeding hole of the deflector plate was determined, and the metal supply above the profiles at both ends was increased. Secondly, the first-level welding chamber of the mold feed surface has a large value of avoiding the two ends to ensure the stability of the metal flow at both ends, and to ensure the metal supply above the profile at both ends, which is conducive to the flatness and surface quality of the profile; Finally, the profile hole is pre-deformed according to the profile produced in the past.

When designing a new type of material, you can find a similar profile, try to design it with a set of parameters as the initial parameters, and then gradually adjust each parameter until it meets the required requirements.

4. Under the condition that the mold meets the requirements of use, there are groove defects on the surface of the extruded profile with screw holes or middle and horizontal points, which affects the surface quality of the profile. Through practice, it is concluded that when processing the mold, the outlet position of the working belt of the upper mold and the lower die is adjusted, and the transition of the working belt is required to be smooth. The working belt of the hollow knife under the deflector groove and the hollow knife under the perforation should be shortened (raised), and the diversion groove should be smoothed to ensure a suitable metal supply.

Thicker profiles even need to be shortened (raised) by 2mm to ensure the surface quality of the profile.

I am doing aluminum profile mold design, and it is best to find a master to teach this question on the spot.

If you have information to design, you can leave an email.

This friend, the question you raised, that is, for the same mold, I think it is also a problem in two aspects, the diagonal error is large, and there is an obvious uneven metal flow rate for the mold, it is recommended that you should analyze the flow rate according to the mold test head, and use acceleration or obstruction measures to repair the mold. For the upper and lower drumming, mainly due to the fast flow speed of the upper and lower metals, it is recommended that you repair the mold by means of surfacing welding and other obstacles in the shunt hole, I estimate that it will have a certain effect. FYI.

Summary. Hello, I am glad to answer for you, there are more holes in the aluminum mold, and argon arc welding can be used to repair. TIG welding is a welding technology that uses argon as a shielding gas.

It is also known as argon gas shielded welding. It is to pass argon shielding gas around the arc welding to isolate the air from the welding area and prevent oxidation in the welding area. Argon arc welding technology is based on the principle of ordinary arc welding, the use of argon to protect the metal welding consumables, through high current to make the welding consumables melt into a liquid state on the welded substrate to form a molten pool, so that the welded metal and the welding consumables to achieve metallurgical combination of a welding technology, because of the continuous delivery of argon in the high temperature melt welding, so that the welding consumables can not contact with the oxygen in the air, thereby preventing the oxidation of the welding consumables, so that stainless steel, iron hardware metals can be welded.

Hello, I am glad to answer for you, there are more holes in the aluminum mold, and argon arc welding can be used to repair. TIG welding is a welding technology that uses argon as a shielding gas. It is also known as argon gas shielded welding.

It is to pass argon shielding gas around the arc welding to isolate the air from the welding area and prevent oxidation in the welding area. Argon arc welding technology is based on the principle of ordinary arc welding, the use of argon to protect the metal welding consumables, through high current to make the welding consumables melt into a liquid state on the welded substrate to form a molten pool, so that the welded metal and the welding consumables to achieve metallurgical combination is as late as a welding technology, because of the continuous delivery of argon gas in the high-temperature melt welding, so that the welding consumables can not contact with the oxygen in the air, thereby preventing the oxidation of the welding consumables, so that stainless steel, iron metal can be welded.

I hope the above helps you If you are satisfied with me, please give a thumbs up <>

First: the mold of aluminum profile opening and customization must be qualified. The mold customized for mold opening is high-precision tool steel.

Because the mold needs to have a very high wear resistance. It is necessary to have high rigidity, light weight, high surface finish and dimensional accuracy. Some aluminum alloy profiles with complex shapes and difficult cutting processes need to be easily processed and formed by using cold extrusion process.

Second: the raw materials of the profiles customized by the aluminum profile must be qualified. At present, the raw materials of industrial aluminum profiles are generally 6063-t5 aluminum alloy, and some are 6061 aluminum alloy.

However, in order to save costs, many manufacturers use ** aluminum mixed with pure aluminum, smelted into alloy and then extruded, so that the surface of the aluminum profile can not see any difference, but in fact, the service life is particularly short. Therefore, the raw materials of the profile must be qualified, in order to ensure that the customized aluminum profile is qualified!

Third: the surface treatment of the customized profile of the aluminum profile must be qualified. The surface treatment of aluminum profiles is generally anodized.

Conventional anodizing is generally silvery-white, but the mold can be customized in any color of the RAL system. Qualified surface treatment means that the thickness of the oxide film should be up to standard, and the color should be correct and uniform.

Aluminum profile mold customizationNow it has become more and more customers' choice, custom aluminum profiles inevitably have to open molds, and custom aluminum profiles need to pay attention to these points as long as they open molds:

A good mold produces a good material, how can a good aluminum profile be made without a good mold? It is also important to choose a compliant profile factory.

Profile mould. The production of a mold has to go through more than a dozen processes, and it takes dozens of hours of process operation to make a mold. Among them are counter-molds.

There are high requirements for the process accuracy, otherwise the extruded profile tolerance will be very worrying.

Raw materials. Generally, regular aluminum enterprises will choose the national standard aluminum rod, so that the product quality will be guaranteed and the service life will be longer.

Mould workshop. Although there are many extruded aluminum factories, there are not many that really have the ability to open molds, and you don't want others to make the difference in the price of your molds.

Aluminum mold maintenance needs precautions:

a.Maintenance content: protect the newly made knife mold, paste a protective sponge in the large space between the knife and the knife, and the sea surface height is higher than the height of the knife, and spray rust inhibitor.

After each use, check whether the knife edge is blunt or damaged, and repair or replace the damaged knife; Wipe off the surface material chips and oil stains, spray anti-shirt rust agent on the knife edge, and store in a ventilated place. b Maintenance content: replace the knives that are aging and rusty, which affects the quality of the products.

c.When removing the mold, avoid touching hard objects with the knife edge. e.

For molds that cannot be maintained or repaired in time, rust inhibitors should be sprayed on the cavity and covered with waste cartons and other protective materials to avoid injury. Die maintenance (or repair) acceptance confirmation 1At the end of the maintenance (or repair) of the knife mold, the mold maintenance team should fill in the maintenance (or) record, and notify the person responsible for the maintenance (or repair) to confirm the physical object and record.

2.When the knife skin collapse mold burns the knife to be replaced, the quality control department should be notified in time to measure the size of the seal sample and the size of the drawing, and confirm it, and the part can be repaired only after confirmation; After the repair is completed, notify the quality control department to confirm that the rear mouth is qualified and then put into production. The confirmer must confirm the actual performance of the maintenance content, and if it is a repaired mold, it is necessary to measure the test sample after the mold repair, and only after the parts are qualified can the confirmation opinion be signed.