Search

CN-122007239-A - Forming process of antibacterial titanium-silver alloy water cup and antibacterial titanium-silver alloy water cup

CN122007239ACN 122007239 ACN122007239 ACN 122007239ACN-122007239-A

Abstract

The application discloses a forming process of an antibacterial titanium-silver alloy water cup and the antibacterial titanium-silver alloy water cup. Blanking from a titanium silver alloy cold-rolled strip to obtain a round blank, wherein the mass percentage of silver in the titanium silver alloy is 0.1-15%, carrying out first drawing on the round blank at the temperature of 100-120 ℃ to form a first intermediate cup body, carrying out second drawing on the first intermediate cup body at the temperature of 140-160 ℃ to form a second intermediate cup body, carrying out third drawing on the second intermediate cup body at the temperature of 180-200 ℃, carrying out pressure maintaining for 1-5 minutes after the third drawing is completed to form a cup body blank, carrying out annealing heat treatment on the cup body blank, wherein the annealing temperature is 650-750 ℃ and the heat preservation time is 1-3 hours, and carrying out surface treatment on the cup body after the heat treatment to obtain the finished product water cup. The application improves the formability of the antibacterial titanium-silver alloy, and the deformation resistance of the antibacterial titanium-silver alloy is reduced and the plastic deformation capability is enhanced in the temperature range.

Inventors

  • ZHANG HONGFEI
  • ZHANG SHAOHUI
  • SHI MINGJIE
  • YANG JIAJING
  • FAN XIAOJIE
  • LU JINWU

Assignees

  • 西安庄信新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260309

Claims (10)

  1. 1. The forming process of the antibacterial titanium silver alloy water cup is characterized by comprising the following steps of: S1, blanking from a titanium-silver alloy cold-rolled strip to obtain a round blank, wherein the mass percentage of silver in the titanium-silver alloy is 0.1-15%; S2, carrying out first drawing on the round blank at the temperature of 100-120 ℃ to form a first middle cup body; s3, carrying out second drawing on the first intermediate cup body at the temperature of 140-160 ℃ to form a second intermediate cup body; s4, carrying out third drawing on the second middle cup body at the temperature of 180-200 ℃, and carrying out pressure maintaining after the third drawing is finished for 1-5 minutes to form a cup body blank; s5, annealing heat treatment is carried out on the cup blank, wherein the annealing temperature is 650-750 ℃, and the heat preservation time is 1-3 hours; and S6, carrying out surface treatment on the cup body after the heat treatment to obtain a finished product water cup.
  2. 2. The process for forming an antibacterial titanium silver alloy water cup according to claim 1, wherein the thickness of the titanium silver alloy cold rolled strip is 0.4mm to 1.0mm.
  3. 3. The process for forming an antibacterial titanium silver alloy water cup according to claim 1, wherein, before step S2, the profile of the drawing die and the round billet are cleaned, coated with a lubricant and preheated to 100 ℃ to 120 ℃; Before step S3, cleaning the profile of the drawing die and the first intermediate cup, coating a lubricant, and preheating to 140 ℃ to 160 ℃; Before step S4, the profile of the drawing die and the second intermediate cup are cleaned, coated with a lubricant and preheated to 180 ℃ to 200 ℃.
  4. 4. The process for forming the antibacterial titanium silver alloy water cup according to claim 3, wherein, In the preheating step, the drawing die is heated by adopting a resistance wire, and a thermocouple is used for temperature monitoring; The round blank is heated by an electric heating furnace.
  5. 5. The process of claim 1, wherein in step S2, the unit blank holder force of the first drawing is 2.5 to 3.0MPa, the pressing force is 20 to 25kN, the pressing speed is 60 to 70mm/min, and the pressing stroke is 20 to 30% of the final cup height.
  6. 6. The process of claim 5, wherein in step S3, the second drawing has a unit blank holder force of 2.0 to 2.5MPa, a pressing force of 15 to 20kN, a pressing speed of 50 to 60 mm/min, and a pressing stroke of 30 to 40% of the final cup height.
  7. 7. The process of claim 6, wherein in step S4, the third drawing has a unit blank holder force of 1.5 to 2.0MPa, a pressing force of 10 to 15kN, a pressing speed of 40 to 50mm/min, and a pressing stroke of 35 to 45% of the final cup height.
  8. 8. The process for forming an antibacterial titanium silver alloy water cup according to claim 7, wherein the blank pressing gap of the first drawing, the second drawing and the third drawing is kept constant and is 1.05 to 1.15 times the initial thickness of the round blank.
  9. 9. The process for forming an antibacterial titanium silver alloy cup according to claim 1, wherein in step S5, the annealing heat treatment is performed under a vacuum atmosphere, and the vacuum degree is in the range of 5 x 10 -3 ~5×10 -2 Pa.
  10. 10. An antibacterial titanium-silver alloy water cup, characterized in that the antibacterial titanium-silver alloy water cup is prepared by a forming process of the antibacterial titanium-silver alloy water cup in any one of claims 1 to 9.

Description

Forming process of antibacterial titanium-silver alloy water cup and antibacterial titanium-silver alloy water cup Technical Field The application relates to the technical field of metal material forming, in particular to a forming process of an antibacterial titanium-silver alloy water cup and the antibacterial titanium-silver alloy water cup. Background Titanium and titanium alloys are widely used in the field of manufacturing high-end household utensils (e.g., drinking cups) by virtue of their low density, high specific strength, excellent corrosion resistance and good biosafety. However, the conventional pure titanium material does not have an antibacterial function, and is difficult to meet the increasing demands of the market on healthy and sanitary daily necessities. In order to impart antibacterial properties to titanium consumer products, a solution for forming a titanium silver alloy by adding silver (Ag) element to titanium has been proposed on the basis of the prior art. Silver ions have broad-spectrum and efficient antibacterial capability, and the titanium-silver alloy can slowly release silver ions in the use process, so that a lasting antibacterial effect is realized. But the introduction of the silver element improves the antibacterial property of the material and changes the microstructure and mechanical property of the material. Alloying results in a titanium silver alloy with significantly improved strength and hardness and correspondingly reduced plasticity and formability. At present, a metal cup (especially a pure titanium cup) is commonly formed by adopting a room-temperature multi-pass drawing process. If the process is directly applied to the titanium silver alloy plate, the defects of cracking, wrinkling and the like are very easy to occur in the drawing process due to the insufficient forming capability of the material at room temperature, so that the product yield is very low, the production cost is high, and the industrialized application of the high-performance antibacterial material is seriously hindered. Therefore, the prior art lacks a reliable forming process capable of effectively solving the problem of difficult plastic forming of titanium-silver alloy and being suitable for large-scale manufacturing of water cup products. The development of a special forming method which can adapt to the characteristics of titanium-silver alloy materials and ensure high yield is a technical problem to be solved in the field. Disclosure of Invention The embodiment of the application solves the problems in the background technology by providing the forming process of the antibacterial titanium silver alloy water cup and the antibacterial titanium silver alloy water cup. In a first aspect, an embodiment of the present application provides a process for forming an antibacterial titanium silver alloy cup, including the following steps: S1, blanking from a titanium-silver alloy cold-rolled strip to obtain a round blank, wherein the mass percentage of silver in the titanium-silver alloy is 0.1-15%; S2, carrying out first drawing on the round blank at the temperature of 100-120 ℃ to form a first middle cup body; s3, carrying out second drawing on the first intermediate cup body at the temperature of 140-160 ℃ to form a second intermediate cup body; S4, carrying out third drawing on the second middle cup body at the temperature of 180-200 ℃, and carrying out pressure maintaining for 1-5 minutes after the third drawing is finished to form a cup body blank; s5, annealing heat treatment is carried out on the cup blank, wherein the annealing temperature is 650-750 ℃, and the heat preservation time is 1-3 hours; and S6, carrying out surface treatment on the cup body after the heat treatment to obtain a finished product water cup. With reference to the first aspect, in one possible implementation manner, the thickness of the titanium silver alloy cold-rolled strip is 0.4mm to 1.0mm. With reference to the first aspect, in a possible implementation manner, before the step S2, the profile of the drawing die and the round blank are cleaned, coated with a lubricant and preheated to 100 ℃ to 120 ℃; Before step S3, cleaning the profile of the drawing die and the first intermediate cup, coating a lubricant, and preheating to 140 ℃ to 160 ℃; Before step S4, the profile of the drawing die and the second intermediate cup are cleaned, coated with a lubricant and preheated to 180 ℃ to 200 ℃. With reference to the first aspect, in a possible implementation manner, in the preheating step, the drawing die is heated by a resistance wire and a thermocouple is used for temperature monitoring; The round blank is heated by an electric heating furnace. With reference to the first aspect, in a possible implementation manner, in step S2, the unit blank holder force of the first drawing is 2.5 to 3.0MPa, the pressing force is 20 to 25kN, the pressing speed is 60 to 70mm/min, and the pressing stroke is 20% to 30% of the final