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How to prevent deformation during slow wire processing

 Slow-moving wire processing is a very exquisite and exquisite craft, and sufficient preparations need to be made, so that the processed products can be more quality. The slow-moving wire processing technology has a wide range of applications and is a must in our industries. If you want to do better with less technology, you must master all aspects of the processing knowledge. For example, the most common thing is the deformation during processing.  How can we solve it How to prevent deformation during slow wire processing Speaking of slow wire processing, it uses continuously moving fine metal wires as electrodes. Pulse spark discharge is performed on the workpiece, where it generates a high temperature above 6000 degrees. Moreover, if it wants to improve its quality problems and prevent its deformation, it can firstly start from the following aspects. 1. To prevent deformation, it is impossible for the material to have no internal stress. In particular, the internal stress of the que

KOVAR parts seal preparation and physical properties

Kovar® is a vacuum-melted iron-nickel-cobalt low-expansion alloy. The chemical composition content is controlled in a very narrow range to ensure accurate and balanced thermal expansion performance. At the same time, strict quality control during the manufacturing process of KOVAR machining parts also ensures balance Its physical and mechanical properties are more suitable for deep drawing, stamping and various cutting processes. Material use Kovar® is used for vacuum sealing of hard glass and ceramics, and is widely used in electron tubes, microwave tubes, transistors and diodes. On integrated circuits, it is used for flat integrated circuits and dual in-line packages. Seal preparation All parts made by Kovar® should be degassed and annealed in a wet hydrogen atmosphere. Hydrogen is injected into water at room temperature and gets wet through blisters. Care must be taken to prevent surface carbonization. The heat treatment furnace must have a cooling chamber that provides the same a

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th

Have all the operating procedures of the injection molding workshop been achieved?

               Start-up preparation
1. Make preparations before production.
2. Turn on the heating switch to heat up. Check whether the heating coil is working normally, and solve it in time if there are special circumstances or find relevant personnel to solve it.
3. Turn on the cooling water to prevent the high temperature in the latter part of the heating process from forming plastic backflow, which will block the feeding port and delay the normal start-up. And whether the cooling water pump is abnormal, whether the sound is normal, if there is any problem, solve it in time or find relevant personnel to solve it.
4. Before starting the machine, check whether the electrical appliances and mechanical safety devices of the machine are reliable. If there is any problem, fix it in time or find relevant personnel to solve it.
5. Check whether the fastening screws of the mold and the machine are loose, and whether the guide post and the guide sleeve are correctly inserted. If there is any problem, solve it in time to avoid unnecessary accidents or damage to the mold. Enter the corresponding injection molding benchmark process conditions according to the product name.

              Forming adjustment
1. Open the plastic machining mold and check whether there are foreign objects on the parting surface of the mold. If there are foreign objects, remove them in time to ensure that the parting surface is clean, so as not to crush or damage the mold and affect the accuracy of the mold.
2. When cleaning the plastic or impurities on the mold cavity or core, it is strictly forbidden to impact the mold cavity and core with iron or other hard metals to avoid damage to the mold.
3. Lubricate the guide post, guide sleeve and other sliding parts of the mold.
4. When the temperature of the barrel is reached, keep it warm for another 5 minutes to ensure that the plastic in the barrel is fully melted, and the machining uhmw plastic cannot be forced to start or predict, so as not to damage the screw and the inner wall of the barrel.
5. Without clamping the mold, it is strictly forbidden to advance the injection seat to avoid damage to the mold or accidental injury caused by the falling mold. Formal production
6. After the machine is turned on, the person in charge will take the first 5 molded products and confirm the first piece. The confirmation result is recorded in the "First Article Inspection Record Form". And notify the engineering inspector that the equipment has entered the production state.
7. After entering the formal production, record the actual production process conditions in the "Injection Molding Process Record Sheet".
8. During production, the personnel in charge need to clean the cnc machined parts molds and machines and update the grease every shift.
9. Temporary shutdown due to alarm or other reasons. When re-production, the first 2 molds should be discarded, and then 2 molds should be taken to confirm the appearance of the molded product.
                   shutdown
1. After the production reaches the production instruction quantity, close the hopper inlet and switch the molding machine to the "semi-automatic" state.
2. After cleaning the mold a little, spray anti-rust agent on the PL surface of the mold.
3. Turn off the mold cooling water 5-10 minutes before shutdown, and blow out the mold cooling water after shutdown.
4. Take out the excess material in the hopper, and clean up the part that cannot be taken out.
5. Clean the screw. If machining uhmw, PP, PE, PS, ABS raw materials, there is no need to clean the screw; to produce other raw materials (such as PVC material), you need to clean the screw with cleaning materials.
6. Screw cleaning method. After the production of PVC.POM raw materials, they are directly cleaned with cleaning materials. After PC and PA raw materials are produced, they are cleaned with cleaning materials first, and then the temperature of the barrel is lowered to 200 degrees, and then cleaned several times.
7. After the screw is cleaned, shoot the screw to the end.
8. At the end of production, the mold should be closed, but the mold should not be closed tightly, so that the movable and fixed molds should maintain a gap of 0.5-1mm.

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