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Machine barrel fabrication method

A production method and barrel technology, which is applied in the field of barrel production on extruders, injection molding machines, and rubber machines, can solve problems such as shortened life and insufficient inner wall strength, and achieve enhanced inner wall strength, long service life, and wear resistance. Corrosion performance good effect

Active Publication Date: 2013-10-16
浙江精制机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of its structure is that the inner wall is not strong enough, and it is easy to wear and corrode, thus shortening the service life.

Method used

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  • Machine barrel fabrication method
  • Machine barrel fabrication method
  • Machine barrel fabrication method

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.

[0025] Such as Figure 1 to Figure 3 As shown, a method for manufacturing a barrel is characterized by the following steps: 1. Select 40Cr or 42CrMo metal rods, and cut materials according to specifications and length; 2. Drill holes for the metal rods that are cut, and drill holes Previously, the outer circle of the alloy rod was rough-machined into an outer circle, so that the hole diameter was 3~4mm larger than the drawing requirements to form a barrel body; third, FeNiCrB alloy powder was placed in the inner cavity of the drilled barrel body And flux, the proportion of each component of FeNiCrB alloy powder is: per 100 parts of FeNiCrB alloy powder, chromium (Cr) 8-15 parts, nickel (Ni) 8-10 parts, boron (B) 3-4 parts, The rest is iron (Fe), the above is the part by weight, and the flux is borax; then the two ends of the barrel blank are welded to cov...

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Abstract

The invention discloses a machine barrel fabrication method which includes the steps of: selecting 40Cr or 42CrMo metal bars and blanking according to specification and length; drilling holes with apertures being 3-4mm bigger than apertures of holes required on the drawing on the blanked metal bars to form a machine barrel main body; loading FeNiCrB alloy powder and fluxing agent to the inner cavity of the perforated machine barrel main body; and welding sealing covers on the two ends of the machine barrel main body. FeNiCrB alloy powder is enclosed in the inner cavity (3) of the machine barrel (1); the amount of the FeNiCrB alloy powder is equal to the amount at the thickness of an alloy layer (2); and the amount of the fluxing agent equals to 4.5%-5.5% of the amount of the FeNiCrB alloy powder. With such structure, the inner layer of the machine barrel has the effects of high wear resistance and corrosion resistance. Compared with common nitrided machine barrels made of various plastics added with less than 30% glass fiber, the JZB bimetal machine barrel has the advantages that the service life is 3-5times longer. Meanwhile, the bimetal machine barrel fabricated through the method has the highest cost performance and the widest application range.

Description

Technical field [0001] The invention relates to the technical field of barrel manufacturing, in particular to a method for manufacturing barrels on injection molding machines, extruders and rubber machines. Background technique [0002] An existing Chinese utility model with the patent number 200520097801.0 entitled "A Plastic Extruder Barrel" discloses a structure. The structure of the cylinder includes a front section and a rear section. The length of the front section is the entire length of the cylinder. 1 / 5 to 1 / 3 of the length; the front section is formed by splicing the front section of the half cylinder and the front section of the half cylinder. The front and rear sections of the half cylinder are integrated, and the front section of the half cylinder is connected to The rear section and the front section of the half cylinder are welded to form the cylinder. The barrel body of the screw plastic extruder of the utility model can use the scrapped barrel body, thereby redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00C22C38/54
Inventor 周建军
Owner 浙江精制机械有限公司