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A kind of manufacturing method of antibacterial stainless steel sink

A kind of antibacterial stainless steel, the technology of production method, applied in the direction of water supply equipment, construction, indoor sanitary pipeline installation, etc., can solve the problems of high price, poor wear resistance, short antibacterial function time limit, etc., to achieve the reduction of cracking tendency, excellent processing performance, Inexpensive effect

Active Publication Date: 2020-07-17
JOMOO KITCHEN & BATHROOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN102327080A discloses a stainless steel water tank, which is prepared by adding 3-4% copper ions and 0.01-1% silver ions to stainless steel to prepare a stainless steel water tank with antibacterial properties. Silver ions are added to the stainless steel, and silver ions will seriously affect the processing performance of stainless steel and are expensive
CN201771034U discloses a kind of antibacterial drainer, obtains antibacterial drainer by coating antibacterial self-cleaning film on the inner wall of the drainer body of groove type and water outlet screen, and it is surface-coated type antibacterial stainless steel product, after using wear and tear, That is, the antibacterial ability is lost, the life is short, and the antibacterial performance is unstable
In general, there are still many problems to be solved when antibacterial stainless steel is used in sinks. All-material antibacterial stainless steel is easy to break when it is stretched and formed in kitchen and bathroom sinks; coated antibacterial stainless steel sinks have poor wear resistance. , short antibacterial function, etc.
If the existing stainless steel meets the functional characteristics of all materials such as antibacterial and good ductility, the manufacturing cost is high and there is no special advantage in industrial applicability. Therefore, it is used in the manufacture of kitchen and bathroom products, especially double-slot products that require high ductility. often limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this example, a solid-solution state (temperature 1050°C, time 30mim) austenitic stainless steel plate with a size of 1.0mm is used as a raw material to make double antibacterial water tanks. The production method includes primary stretching, intermediate annealing, secondary stretching, and edge trimming. , drawing.

[0026] The raw material composition is Cu=3.6wt.%, C=0.05wt%, Si=0.28wt%, Mn=0.42wt%, P=0.02wt%, S=0.002wt%, Ni=7.2wt%, Cr= 17.6wt%, the balance is Fe.

[0027] The first stretching pressure is 630T, and the stroke is 16cm; the second stretching pressure is 800T, and the stroke is 7cm.

[0028] The process parameters of the intermediate annealing are: the atmosphere is an ammonia protective atmosphere, the holding temperature is 1040°C, the holding time is 15min, and the cooling method is air cooling.

[0029] The elongation rate of the steel plate material of this embodiment is 56%, and the inner surface of the antibacterial sink double groove is sm...

Embodiment 2

[0031] In this example, a 0.8mm solid-solution state (temperature 1040°C, time 50mim) austenitic stainless steel plate is used as a raw material to make double tanks for the water tank. The manufacturing method includes primary stretching, intermediate annealing, secondary stretching, edge trimming, and wire drawing. .

[0032] The raw material composition is Cu=3.1wt.%, C=0.06wt%, Si=0.23wt%, Mn=0.68wt%, P=0.03wt%, S=0.003wt%, Ni=7.5wt%, Cr= 17.1wt%, the balance is Fe.

[0033] The first stretching pressure is 650T, and the stroke is 17cm; the second stretching pressure is 780T, and the stroke is 5cm.

[0034] The process parameters of the intermediate annealing are: the atmosphere is an ammonia protective atmosphere, the holding temperature is 1050°C, the holding time is 12 minutes, and the cooling method is air cooling.

[0035] The elongation rate of the steel plate material of this embodiment is 59%, and the inner surface of the antibacterial sink double tank is smooth ...

Embodiment 3

[0037] In this example, a 0.8mm solid-solution state (temperature 1050°C, time 40mim) austenitic stainless steel plate is used as a raw material to make double tanks for the water tank. The manufacturing method includes primary stretching, intermediate annealing, secondary stretching, edge trimming, and wire drawing. .

[0038] The raw material composition is Cu=2.9wt.%, C=0.06wt%, Si=0.2wt%, Mn=0.51wt%, P=0.02wt%, S=0.003wt%, Ni=7.3wt%, Cr= 16.7wt%, the balance is Fe.

[0039] The first stretching pressure is 630T, and the stroke is 16cm; the second stretching pressure is 800T, and the stroke is 7cm.

[0040] The process parameters of the intermediate annealing are: the atmosphere is an ammonia protective atmosphere, the holding temperature is 1030°C, the holding time is 15 minutes, and the cooling method is air cooling.

[0041] The elongation rate of the steel plate material in this embodiment is 57%, and the inner surface of the antibacterial sink double groove is smooth...

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Abstract

The invention discloses a manufacturing method of an anti-microbial stainless steel water channel. The manufacturing method sequentially comprises the steps of first-time drawing, intermediate annealing, second-time drawing, edge cutting and wire drawing; solid solution state austenitic grade stainless steel formed within 30 min-60 min at the temperature ranging from 1000 DEG C-1060 DEG C is usedas a raw material, wherein Cu is 2.5%-4% by weight, the C is smaller than or equal to 0.08% by weight, Si is smaller than or equal to 0.5% by weight, Mn is smaller than or equal to 1.5% by weight, P is smaller than or equal to 0.045% by weight, S is smaller than or equal to 0.03% by weight, Ni is equal to 7%-8% by weight, Cr is equal to 16.5%-18% by weight, and the balance is Fe; and the solid solution state austenitic grade stainless steel at the specific temperature and time is adopted as the raw material, and full-texture antibiosis is achieved in cooperation with the process flow. The method has the excellent machining performance, cracking trends in the water channel drawing molding process can be effectively reduced, the clean, smooth and folding-free surface of the water channel isguaranteed, and the ductility, the tenacity and other performances of manufactured products are excellent.

Description

technical field [0001] The invention belongs to the technical field of processing kitchen and bathroom products, and in particular relates to a method for manufacturing an antibacterial stainless steel sink. Background technique [0002] With the improvement of people's living standards, more and more people begin to pay attention to the quality of life and physical health. For kitchen and bathroom products, the market demand for healthy sterilization products is becoming more and more urgent. Ordinary kitchen and bathroom stainless steel such as SUS304 does not have antibacterial properties, and it is easy to breed bacteria when the surface is stained in a humid environment. [0003] There are two main ways for stainless steel to achieve antibacterial function. One is to add antibacterial elements to the alloying of the matrix, that is, the whole material is antibacterial; the other is to coat the surface of the steel with an antibacterial coating to achieve antibacterial,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/42C21D8/00C22C38/02C22C38/04E03C1/18
CPCC21D8/005C22C38/02C22C38/04C22C38/42E03C1/18
Inventor 林孝发林孝山周年润汪火良
Owner JOMOO KITCHEN & BATHROOM
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