[Abstract] The detection and correction of deformation in the main girder of bridge (gantry) cranes is a common issue faced by enterprises in their production processes. This paper outlines several methods for detecting and correcting such deformation, describes their characteristics, and explains their scope of application. Keywords: main girder deformation, detection, correction

I. Bucket Materials and Their Weldability 1. Before welding, the weld area must be thoroughly cleaned—that is, the original cracked weld metal must be removed, either by grinding with an angle grinder or, where possible, by carbon arc gouging.

[Original content from Tiejia Construction Machinery Network] One of the lads in Tiejia Group 4 has been pestering me for the past few days, either asking me to tell a story or to post the repair plan for the severed arm. A man has to satisfy his woman, and his mates too.

3.3 If the end of a fillet weld is located on the closure edge of a section, a length of approximately 200 mm should be left unwelded at that section for the time being; this section should be welded only upon closure, as shown in Figure 4(c). b) After tack welding the longitudinal girders, web plates and inner bottom plate flat assemblies

3.3 If the end of a fillet weld is located on the closure edge of a section, a length of approximately 200 mm should be left unwelded at that section for the time being; this section should be welded only upon closure, as shown in Figure 4(c). b) After tack welding the longitudinal girders, web plates and inner bottom plate flat assemblies

Corner welds are a common feature in steel structure welding; their diversity not only presents challenges for welders but also imposes different standards upon them. So, how can one successfully complete corner welds to meet all the relevant requirements? We will explain this in detail below.

Abstract: Not sure where to start with your first prototype? This article provides a practical beginner’s guide for readers with no prior knowledge, covering four key areas: the definition of a prototype, industry terminology, the full prototyping process, and common pitfalls, to help you get started with prototype manufacturing quickly. What is a prototype? This article explains it all.

Following decades of development, prototype manufacturing has evolved into three core process systems centred on CNC precision machining, 3D printing rapid prototyping and vacuum casting. This article will examine these systems from four key perspectives: process principles, strengths and weaknesses, material suitability, and application scenarios.

Abstract: Not sure where to start with your first prototype? This article provides a practical beginner’s guide for readers with no prior knowledge, covering four key areas: the definition of a prototype, industry terminology, the full prototyping process, and common pitfalls, to help you get started with prototype manufacturing quickly. What is a prototype? This article explains it all.

Following decades of development, prototype manufacturing has evolved into three core process systems centred on CNC precision machining, 3D printing rapid prototyping and vacuum casting. This article will examine these systems from four key perspectives: process principles, strengths and weaknesses, material suitability, and application scenarios.