Guide rail quality appraisal

guide rail is a commonly used part in mechanical equipment. Its main function is to guide, support, position, etc. Generally used in the machine industry and railway industry. Among them, guide rails in the machine industry usually refer to track components used on machine tools to support and guide the relative movement of cutting tools and workpieces; while guide rails in the railway industry refer to steel rails. No matter what type of guide rail, its function is to enable the workpiece or train to move along the designated track, making the movement smoother and more accurately positioned.
guide rail is an important part in mechanical equipment. There are many types of guide rails. Different types of guide rails should be selected according to specific working conditions and requirements.
In the case of guide rail quality appraisal, Zhongke Testing can provide guide rail quality appraisal services.

guide rails are usually made by mechanical processing or cold drawing processing, and their supporting strength should generally be 370~520MPa. According to their transverse cross-sectional shapes, they mainly include: T-shaped guide rails, L (or triangular)-shaped guide rails, U-shaped guide rails, O-shaped guide rails, hollow guide rails, etc.

GB/T 16555-2017 Methods for chemical analysis of carbon, silicon carbide and nitride refractory materials
GB/T 32322.1-2015 Rolling bearings Linear motion rolling bearing forming guide rail pair Part 1: 1, 2, 3 series dimensions and tolerances
GB/T 32322.2-2015 Rolling bearings Linear motion rolling bearing forming guide rail pair Part 2: Dimensions and tolerances of series 4 and 5
GB/T 3668.12-1983 General components of combined machine tools Dimensions of floor-standing columns with guide rails
GB/T 3668.11-1983 General components of combined machine tools Dimensions of columns with guide rails
GB/T 5288-2007 Gantry guide rail grinder accuracy inspection
GB/T 39983-2021 Ball arc guide rail pair acceptance technical conditions

was entrusted by a court to conduct an appraisal and analysis on the "cause of cracking of the workpiece" of the guide rail involved.
quality analysis results: The
quality analysis expert group conducted a discussion and comprehensive quality technical analysis on the relevant information and on-site investigation and inspection of the vehicle navigation involved in the case, and made the following suggestions and conclusions. :
The screw holes of the guide rail involved in the case have many irregular signs of knocking and cracking. Under the action of external forces, the knocking and cracking areas of the screw holes are prone to stress concentration and become crack origin areas. The cracks expand from the screw holes until the guide rail involved cracks.