What kind of welding is used for forklift shovel plates: technical analysis and hot topics combined
Recently, discussions on construction machinery maintenance and welding technology have become increasingly popular on major social platforms and industry forums. This article will combine the hot topics on the Internet in the past 10 days to answer the question "What kind of welding is used to weld the forklift shovel plate" in detail, and provide structured data for readers' reference.
1. Overview of forklift shovel plate welding technology
As the core component of engineering machinery, the forklift shovel plate has been subjected to high-intensity impact and wear for a long time, and has extremely high requirements on welding processes. The following are common welding methods and applicable scenarios:
| Welding method | Applicable materials | advantage | shortcoming |
|---|---|---|---|
| Manual arc welding | Ordinary carbon steel | Low cost and flexible operation | Low efficiency and unstable weld quality |
| CO2 gas shielded welding | low alloy steel | High efficiency and small deformation | Requires professional equipment |
| submerged arc welding | thick plate structure | Large penetration and high degree of automation | Equipment is expensive |
2. Correlation analysis of recent hot topics
1."The Rise of New Energy Engineering Machinery": With the popularity of electric forklifts, their shovel plate materials tend to be high-strength steel, and laser welding technology has become a new hot spot.
2."Equipment Maintenance in Rural Revitalization": The demand for maintenance of small forklifts in rural areas has surged, and the combination of manual welding + wear-resistant welding rods has become a popular solution.
3."The cost of welding robots is falling": According to industry data, the average price of robot welding equipment in Q2 2023 will drop by 15% year-on-year, promoting the application of semi-automatic welding in shovel plate repair.
3. Welding material selection guide
| Shovel plate material | Recommended welding materials | Tensile strength (MPa) |
|---|---|---|
| Q235 plain carbon steel | J422 welding rod | 420 |
| NM360 wear-resistant steel | YD507 welding wire | ≥700 |
| HQ785 high strength steel | MK.G60-1 welding wire | ≥800 |
4. Operational points and precautions
1.Preheating treatment: Shovel plates with a thickness exceeding 20mm need to be preheated to 150-200℃ to prevent cold cracks.
2.Interlayer temperature control: During multi-layer welding, the layer temperature should be kept not exceeding 250°C.
3.Post-weld hydrogen elimination: High-strength steel needs to be post-heat treated at 200℃×2h immediately after welding.
5. Industry trends and innovative technologies
According to data from an e-commerce platform, searches for welding-related products have increased significantly in the past seven days:
| Product Category | Search volume increase | Popular brands |
|---|---|---|
| Wear-resistant welding rod | +45% | Atlantic Ocean, Golden Bridge |
| portable welding machine | +32% | Ruiling, Jasic |
| welding robot | +68% | Eston, Xinsong |
The new cold metal transfer (CMT) welding technology is being rapidly promoted in the field of high-end forklift manufacturing due to its low heat input characteristics, which can reduce welding deformation by more than 90%.
6. User FAQs
Q: Can ordinary AC welding machines weld forklift shovel plates?
A: It can be used in emergency, but it is recommended to use an inverter DC welding machine to obtain a more stable arc.
Q: What should I do if cracks appear after welding?
A: It is necessary to completely remove the cracked parts, use low-hydrogen welding materials and strictly follow the process requirements.
It can be seen from the system analysis in this article that the welding of forklift shovel plates requires the selection of appropriate technical solutions based on specific working conditions. As new materials and processes are developed, innovative solutions will continue to emerge in this area.
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