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Laser grooving machining method of dry gas seal spiral groove

A processing method and dry gas sealing technology, which is applied in the field of spiral groove processing, can solve the problems that have not been discussed in detail, and achieve the effects of fast speed, good repeatability and high precision

Active Publication Date: 2015-05-13
丹东市东升石化设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no specific discussion on how to process the groove shape

Method used

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  • Laser grooving machining method of dry gas seal spiral groove
  • Laser grooving machining method of dry gas seal spiral groove
  • Laser grooving machining method of dry gas seal spiral groove

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] A laser groove processing method for dry gas sealing spiral grooves,

[0027] (1) Processing equipment

[0028] The core processing equipment for laser grooving is the 20W optical fiber marking machine manufactured by Shenzhen Han’s Laser Technology Co., Ltd. The positioning accuracy of the light spot and the smoothness of the line can reach 0.001mm, which is especially suitable for repeated marking. For occasions with strict requirements on accuracy and fineness, the marking range is 100×100mm. An excessively large marking range will affect the power density of the spot and the marking accuracy. In the process of grooving, the engraved dynamic pressure grooves are required to be evenly distributed around the center of the ring, so it must be ensured that the center of the laser spot and the center of the ring are at the same point, which requires alignment b...

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Abstract

The invention discloses a laser grooving machining method of a dry gas seal spiral groove, wherein a machining device is a 20W optical fiber marking machine. The machining method comprises the following steps of: (1) designing the shape of the dry gas seal spiral groove by special drawing software; (2) positioning, wherein a ring with outer diameter being is less than or equal to 100mm is positioned in a marking range, and a ring with outer diameter being more than 100mm is positioned by a groove-to-groove machining method; and (3) grooving which is implemented by selecting appropriate marking parameters of focal length, marking speed, effective vector step length, power, frequency and the like. The laser grooving method has the characteristics of having a wide application range, being applicable to machining surfaces of different materials and different shapes, ensuring no mechanical deformation of workpieces, no pollution, high speed, high accuracy, good repeatability, high automation degree, and the like, is used for machining logarithm spiral grooves, rectangular grooves and dual-trapezoid grooves, is especially suitable for machining shallow grooves, and has obvious effects of improving product quality and machining efficiency.

Description

technical field [0001] The invention relates to a processing method of a spiral groove, in particular to a laser groove processing method of a dry gas sealing spiral groove. Background technique [0002] At present, dry gas seals are more and more widely used, and the dynamic pressure groove on the seal ring is the core technology of dry gas seals, and the quality of its processing determines the performance of the product. In the process of developing dry gas seal products, the biggest problem encountered is how to carve grooves on the sealing ring. Although a large number of documents and materials have been consulted, these documents and materials only focus on theoretical research on various groove shapes. Various calculation methods are introduced to achieve the optimal design of groove shape. However, there is no specific discussion on how to process the groove shape. Contents of the invention [0003] Aiming at the problems existing in the existing dry gas seal sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/364
Inventor 戴伟郇维东张昌盛孙安新李洪全张煜国肖国军余世江马鑫
Owner 丹东市东升石化设备有限公司
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