Manufacturing method of wear-resistant barrel

A manufacturing method and wear-resistant machine technology, which are applied to the surface coating liquid device, pre-treated surface, coating, etc., can solve the problems of short service life and poor wear resistance, and achieve good wear resistance and production Simple process, strong effect

Active Publication Date: 2017-02-15
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AI-Extracted Technical Summary

Problems solved by technology

However, the inner side of the cylinder wall of this invention has poor wear resistanc...
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A manufacturing method of a wear-resistant barrel comprises steps as follows: 1, a barrel blank is selected and is machined to form a barrel; 2, a formula of nickel-based alloy powder is formulated; 3, the nickel-based powder is mixed to form a mixture according to the formula in the step 2; 4, a pull wire with the set strength is selected, and corundum is uniformly bonded to the pull wire; 5, the mixture at the temperature ranging from 70 DEG C to 80 DEG C is placed in an inner cavity of the barrel with the temperature controlled to range from70 DEG C to 80 DEG C, is spread on the inner wall of the barrel and is uniformly cut by the aid of a pull wire head. The method has the advantages as follows: the manufacturing technology is simple and stable, an inner wear-resistant layer manufactured on the inner wall of the barrel is high in strength and good in wear-resistant performance, more importantly, the wear-resistant layer of the barrel manufactured with the method has the uniform thickness, and with the method, the thickness of an inner wear-resistant layer on an inner wall of a relatively long barrel or an ultra-long barrel can completely meet the requirements for uniformity and consistency; and the technical problem that wear-resistant layers of long barrels cannot be uniform and consistent so far is solved.

Application Domain

Pretreated surfacesCoatings

Technology Topic

Wear resistantCorundum +6


  • Experimental program(1)

Example Embodiment

[0020] The present invention will be further described in detail below in conjunction with the embodiments.
[0021] The manufacturing method of the wear-resistant barrel of this embodiment consists of the following steps:
[0022] 1. Select the barrel blank, and process the barrel blank into a barrel;
[0023] 2. A formula for preparing nickel-based alloy powder in 100 parts by weight: 2-3 parts by weight of copper, 2.5-3.5 parts by weight of iron, 3-4 parts by weight of molybdenum, 16-17 parts by weight of chromium, and silicon 4 to 5 parts by weight, 3 to 4 parts by weight of boron, 0.5 to 1 part by weight of carbon, and the rest is nickel;
[0024] 3. According to the formula of step two, the above nickel-based powder and glue are mixed into a mixture at a temperature of 70-80℃, and the mixture is stirred until uniform; the amount of the glue added to the nickel-based powder is 9-11% of the weight of the nickel powder, the percentage is by weight;
[0025] 4. Select the pull wire with the set strength, and evenly stick the gold steel grit on the pull wire for use;
[0026] 5. Put the mixture with a temperature of 70-80°C into the inner cavity of the barrel whose temperature is controlled at 70-80°C, and place circular mold bases in the inner cavities at both ends of the barrel. A circular cavity is formed between the outer circumferential surface and the circumferential surface of the inner wall of the corresponding barrel; the wire coated with gold steel grit is passed through the circular cavity at both ends of the barrel, and the two ends of the wire extend out of the barrel respectively At both ends, the wire drawing heads extending out of the barrel at both ends move synchronously in a circular cavity with a circular cavity. The barrel rotates slowly through the transmission device during the week, and the mixture in the inner cavity of the barrel is evened by the rotation of the wire drawing and the barrel. The ground is applied to the inner wall of the barrel, and the thickness of the mixture applied to the inner wall of the barrel is the distance between the inner wall of the barrel and the outer circumference of the circular mold base.
[0027] 6. Place the barrel coated with the mixture in a vacuum furnace and heat it to 1060~1068℃, keep it for 7~8 hours, and then let it cool to 69~71℃ naturally, and then put the barrel at 69~71℃ Tempering in a vacuum furnace at 350~450℃ for 2~3 hours;
[0028] 7. Take out the tempered barrel from the vacuum furnace, and then polish it to form a wear-resistant barrel with a wear-resistant layer on the inner wall.
[0029] The rotation speed of the slow rotation in the above step 5 is 2 to 3 revolutions per minute; the above glue is preferably oily glue; the above oily glue is an oily glue in which acrylic acid or polyurethane is dissolved in toluene or methyl ethyl ketone; The natural cooling temperature is 70°C; the tempering temperature in the vacuum furnace in the sixth step is controlled to 400°C. The formula in the second step is in 100 parts by weight: 2.1 parts by weight of copper, 3.0 parts by weight of iron, 3.5 parts by weight of molybdenum, 16.5 parts by weight of chromium, 4.8 parts by weight of silicon, 3.6 parts by weight of boron, 0.55 parts by weight of carbon, and the rest For nickel. In the fifth step, the wire drawing heads at both ends of the extension barrel are respectively connected with the mechanical rotating head to move synchronously along the circular cavity. The mechanical rotating head is linked with the driving device, and the driving device passes through the line Connect with the program controller.


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