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Key factors affecting the surface quality of cold drawn tubes
The droplet transition process is closely related to the quality of cold drawn tube products, and its study has the following important significance:
1. Influence the melting of cold drawn tubes. The smaller the droplet particles, the larger the specific surface area, and the better the melting effect, and vice versa.
2. Control that affects arc length. When the melting arc length is too short, such as the current position: the droplet transfer process is closely related to the quality of cold drawn tube products, and its study has the following important significance:
(1) Effect of cold drawn tube melting. The smaller the droplet particles, the larger the specific surface area, and the better the melting effect, and vice versa.
(2) Control of arc length. When the melting arc length is too short, such as about 10mm, which is close to the distance between the metal droplets, it will cause a short circuit between the electrode and the molten pool, causing the arc to subside and interrupt the melting. Perhaps the temperature of the molten pool changes due to frequent short circuits. Both of these conditions will damage the normal smelting process and also affect the uniformity of the titanium ingot structure. Therefore, the arc length of melting is generally controlled above 15mm.
(3) Affects the surface quality of cold drawn tubes. As a result of the dispersion of the metal droplets, a small part of the metal splashes and adheres to the crucible; the effect of the arc on the metal molten pool also causes splashing; coupled with the rotation of the molten pool and the adhesion of metal volatiles and impurities to the crucible wall, the riser of the ingot is formed. Because the riser cannot be well melted by the metal molten pool, and more impurities are adsorbed or adhered, the titanium ingot must be flattened and peeled before processing.
The inside of the pipe is hollow and has a set cross-sectional area. Many pipes are used to transport fluids, such as pipes for transporting oil, gas, water and certain solid materials. The ring cross-section is more evenly stressed when it bears internal or external radial pressure. Therefore, most steel pipes are round pipes.
Please indicate the source for reprinting:http://www.cbtea.cn
1. Influence the melting of cold drawn tubes. The smaller the droplet particles, the larger the specific surface area, and the better the melting effect, and vice versa.
2. Control that affects arc length. When the melting arc length is too short, such as the current position: the droplet transfer process is closely related to the quality of cold drawn tube products, and its study has the following important significance:
(1) Effect of cold drawn tube melting. The smaller the droplet particles, the larger the specific surface area, and the better the melting effect, and vice versa.
(2) Control of arc length. When the melting arc length is too short, such as about 10mm, which is close to the distance between the metal droplets, it will cause a short circuit between the electrode and the molten pool, causing the arc to subside and interrupt the melting. Perhaps the temperature of the molten pool changes due to frequent short circuits. Both of these conditions will damage the normal smelting process and also affect the uniformity of the titanium ingot structure. Therefore, the arc length of melting is generally controlled above 15mm.
(3) Affects the surface quality of cold drawn tubes. As a result of the dispersion of the metal droplets, a small part of the metal splashes and adheres to the crucible; the effect of the arc on the metal molten pool also causes splashing; coupled with the rotation of the molten pool and the adhesion of metal volatiles and impurities to the crucible wall, the riser of the ingot is formed. Because the riser cannot be well melted by the metal molten pool, and more impurities are adsorbed or adhered, the titanium ingot must be flattened and peeled before processing.
The inside of the pipe is hollow and has a set cross-sectional area. Many pipes are used to transport fluids, such as pipes for transporting oil, gas, water and certain solid materials. The ring cross-section is more evenly stressed when it bears internal or external radial pressure. Therefore, most steel pipes are round pipes.
Please indicate the source for reprinting:http://www.cbtea.cn