This standard specifies the test samples and timely test reports for the microstructure inspection of copper and copper alloy castings and processed products. This standard is applicable to the microstructure inspection of copper alloys using metallographic microscopes. YS/T 449-2002 Microstructure inspection method for copper and copper alloy castings and processed products YS/T449-2002 Standard download decompression password: www.bzxz.net

Nonferrous Metals Industry Standard of the People's Republic of China YS:T 449--20D2
Copper and copper alloys
Method for microstructure inspection of cast and wrought products products2002-11-22 release
National Economic and Trade Commission release
2003-01-01 implementation
This standard is confirmed next time to formulate
This standard stipulates the Guangyuan change warehouse gold method and L. Products micro-row internal inspection cold method. This standard naturally uses Appendix 4 dyeing 1 service record (normative except record. Chang standard Fan Shan National Nonferrous Association National Standard Tour North Technical Committee will propose cooperation with the National Party Color Association Pressure Standard Xie Chemical Technical Committee is responsible for this standard letter can be located in the continent because of the medical staff of the company responsible for the regular standard main change of the person naturally test, reduce the section cited Mei Hei, Zhang Kuanhua, the next grinding section, Muzhen Filter Mountain Air Sichuan Nonferrous Gold Wodong Purification Technology Products will be responsible for the hundred slip release: YS:T 249
1 Standard Specification for Microstructure Inspection Methods of Copper and Copper Alloy Castings and Processed Products YS/T:449—2002
6 Standard Specification for Microstructure Inspection of Castings and Processed Products of Copper and Copper Alloys (New Inspection Methods for Microstructure Inspection of Castings and Processed Products of Copper and Copper Alloys) This standard is applicable to the inspection and evaluation of the microstructure of the alloys by enterprises. 2. Sample Preparation
2. Sample Selection
The sample selection shall be based on the provisions of the relevant technical agreement, and the test report shall be kept confidential. The representative parts of the product shall be collected for arc detection and the annealing process shall be parallel to the test section and the number of defects shall be measured. The test points shall be taken along the axis of the fixed ring and the defective parts shall be taken near the defective parts and compared with the normal parts. 2.2 The sample size and quantity shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. The sample size shall comply with the relevant technical standards and the specifications of the technical agreement. -23
: empty.5m with right to fall 4 war and the product, visual and physical feelings or effect, 2.3 test fence cutting
12--15
feed alloy is soft, not stand using grinding wheel cutting report, called Song hand-made, shearing, planing, turning, drinking workers and other sampling, glue group sample should be used line real mark modification details. The middle of the end of the run can be taken by the teacher to avoid the sample temperature is too high, For comparison, you can use water or oil to polish the sample with cold type 2.4 first. The sample is polished with a wire knife. The length is 2mm, and the sample is lifted up. Then, different grains of sand can be used for low-speed polishing. Electric polishing can also be added. Electric polishing usually uses 1~1H1 water sand. The water is 11, and it is passed on the grinding disc. The machine should leave the direction of the change! The sand can be changed to 20-350, and the sound system should be changed between the conversions. The force used during the layering can be large to reduce the shape. The screen will reach the color of the cutting, and the mountain certificate is more tested. 25 samples polishing method: machine calibration polishing, that is, chemical polishing. 2.5.1 Mechanical polishing: After the bamboo shoot treatment, wash with water and then move the cloth with muscle cloth to carry out the polishing process. The polishing agent can be pressed, lead monoxide, lead monoxide, and 1) the hand marks disappear quickly. Polishing: After the polishing, turn the sample direction again, and when it disappears quickly, it is better to put it on the right side) within 10 minutes! Then wash with water for 1 minute, and then clean it for correction.
The cell is polished on a polishing disc with a finer grain of dioxygen or diamond. The oil is cut to the original state, rinsed with water, and then polished. It can be carried out on other discs with mud or silk. Water can be used for ultra-fine polishing. The surface is free of scratches. 2.5.2 Electrolytic polishing
This method is applicable to large-scale production inspection and general inspection. The inspection and maintenance of the electrolytic polishing device is shown in Figure 1. The size of the electrolytic polishing is 2.5.2 Electro ... Long pick
(Japan Beijing
Figure: Schematic diagram of electric polishing equipment
Merchant Ta's test, use the fire of the seller. Connect the Di source, the quick light film is washed in the water, 2.5.3 Chemical light
The chemical reagents are listed in the test list of the country, and the standard of the day is recognized. The commonly used chemical light list is shown in the drama record T, 3 sample etching
Good light sample, Zhang mentioned the inspection, select the appropriate month, to show the common paper suitable for the use of pure chemical drugs with special.
3. 1. 1. ... 3.2.2 Take a small piece of the etchant and remove it. Ask the person who has changed the etchant. Gently touch the surface of the test piece several times. When the sample surface is full of etchant, the gloss will fall off after the sample surface is formed. After the identification of the bean, quickly dig out the card. Rinse off the excess etchant about 1" on the surface of the sample, wash away the etchant with a little alcohol, and dry it with an electric fan.
3.2.3 The degree of safety of the gold calendar is determined by the month of inspection, and the clarity of the structure under the microscope shall prevail. The stock should be lightly thin and turbid. Under the microscope, it is not considered to be unique. Under the condition that the light can be continued or the new light is required to be polished again, the new light must be polished again.
4 Microstructure test
4.1 The inspection of non-inner visible laser group is limited to the inspection before and after the inspection. According to the inspection of the sample before and after the inspection, the light of the sample should be inspected. The color of the purple powder can be seen under the light, and the color of the stone is red under the light. The inspection rate is generally low-10X. The material is observed and analyzed with a micro-effect. 41 Use the most common micro-illumination method to compare the benefits of the fabric: comparison: use the process to measure the annealing sample wheel
44 The root egg needs to be explained by the micro-system|| tt||Test report
Test steps include:
Test source, type, state:) necessary plan including collection part, process, etc.: if used according to the instructions, the total dosage should be the same as the total dosage.
c. Organization:
Test date and time of commissioning unit:
Tester, signature,
YS/T4492002
Beijing Municipal Commission of Development and Reform ...
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chemical dimming reagents and ground light conditions
chemical polishing reagents and plastic light image parts
total of all parts
selection: 20
time 12213:
after 70-.60℃
state time,--21in
YS/1449—2002
Method and method
Copper alloy
YS/T4492002
Ingredients of the agent
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Dichlorobenzene
Trichlorobenzene
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Water content
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Hydrogen hydride equipment
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Etching agent for copper alloy
Table C.1 Etching agent for plate containing gold
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Social corrosion method
Applicable range
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Manganese, chromium: medium
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Time: 5;
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Resource alloy
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VS/T 4292002
Proposed German NiAI Star Guangdong from color. NiAI product summary
Aluminum trap electrode
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