Processing method for inner ring arc section of guide vane

A processing method and technology of guide vanes, which are applied in metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve the problems of low processing accuracy, achieve the effect of improving processing quality, ensuring accuracy requirements, and ensuring processing accuracy

Active Publication Date: 2012-09-19
HARBIN TURBINE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low machining precision existing in the processing method of the arc section of

Method used

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  • Processing method for inner ring arc section of guide vane
  • Processing method for inner ring arc section of guide vane
  • Processing method for inner ring arc section of guide vane

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Experimental program
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specific Embodiment approach 1

[0013] Specific implementation mode one: combine Figure 1-Figure 16 Describe this embodiment, the concrete steps of a kind of guide vane inner ring arc section processing method of this embodiment are:

[0014] Step 1. Rough turning the inner hole, outer circle and upper and lower end faces of the arc section 13 of the inner ring: the inner hole and the outer circle are all loaded with 1.5 mm, and the upper and lower end faces are given 1 mm. The cutting parameters are: the speed is 56r / min-64r / min, The feed rate is 0.2mm / r-0.4mm / r, and the cutting depth is 1.5mm.

[0015] Step 2: Stress-relieving treatment of the inner ring arc section 13 after rough turning. The specific process of stress treatment is as follows: first, heat the rough turning inner ring arc section 13 to 500°C-650°C, then keep it warm for 2 hours, and finally cool down slowly with the furnace to 200°C-300°C.

[0016] Step 3: Finish turning the inner hole, outer circle and upper and lower end faces of the ...

specific Embodiment approach 2

[0023] Embodiment 2: In step 1 of this embodiment, the rotational speed of the inner hole, the outer circle and the upper and lower end surfaces of the inner ring arc section 13 of the rough turning is 60r / min, and the feed rate is 0.3mm / r. Such setting meets the design requirements and actual needs. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: In step 2 of this embodiment, the inner ring arc section 13 of the rough car is heated to 575° C., then kept for 2 hours, and finally cooled slowly to 250° C. with the furnace. With such setting, the temperature control is reasonable, and the stress in rough turning can be effectively released. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a processing method for an inner arc section, in particular to a processing method for an inner ring arc section of a guide vane of a gas compressor unit, and aims to solve the problem of low processing precision in the existing processing method for the inner ring arc section of the guide vane of the gas compressor unit. The processing method mainly includes: step one, rough-turning the inner hole, the outer circle, the front and the rear end surfaces of the inner ring arc section; step two, relieving stress of the inner ring arc section after the rough turning; step three, finish-turning the inner hole, the outer circle, the front and the rear end surfaces of the inner ring arc section; step four, cutting and fixing each arc section; step five, scribing and drilling threading holes; and step six, performing cutting process on shroud holes of each arc section. The processing method is applied to the process of the inner ring arc section of the guide vane of the gas compressor unit.

Description

technical field [0001] The invention relates to a method for processing an inner arc section, in particular to a method for processing an arc section of an inner ring of a guide vane of a compressor unit. Background technique [0002] The machining accuracy of the arc section of the inner ring of the guide vane at the outlet of the compressor unit plays a vital role in the quality and performance of the guide vane. The machining accuracy of the inner arc section of the blade is low. Contents of the invention [0003] The purpose of the present invention is to solve the problem of low machining accuracy in the existing processing method for the arc section of the inner ring of the guide vane of the compressor unit, and further provide a method for processing the arc section of the inner ring of the guide vane. [0004] The technical scheme adopted by the present invention to solve the above problems is: the specific steps of a method for processing the arc section of the i...

Claims

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Application Information

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IPC IPC(8): B23P13/02B23Q3/00
Inventor 魏成双孙盛丽徐鹏树姜秀英
Owner HARBIN TURBINE
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