Third, the analysis of surfacing effect 2. Specimen wear analysis 4. Market feedback information analysis Fourth, the conclusion Previous page Basin Sink Faucet,Bathroom Basin Faucets,Pull Out Basin Faucets,Pull Out Bathroom Basin Mixer JIAHAOJIA SANITARY WARE INDUSTRY CO., LTD. , https://www.gagalfaucet.com
1. Analysis of deposited metal in surfacing layer
The chemical composition of the surfacing layer metal was analyzed by direct reading spectrometer. The specific data is shown in Table 2. It can be seen from Table 2 that the electrodes D227 and XM-6 are mainly related to FW-4102, which reduces the Mn which can harden the deposited metal. At the same time, it increases the diffusion of the deposited metal relative to FW-4102 and cast steel. Mo and V. 
The three surfacing deposited metal and the original cast steel test piece were subjected to wear tests on a test machine, and the wear resistance was measured by the amount of wear. According to the working object of the bucket main blade, three kinds of abrasives were selected for wear test, namely coarse corundum abrasive, fine wet quartz sand abrasive and coarse river sand abrasive. The wear time was 4h, and the running speed of the test machine was constant. The wear test results are shown in Figure 3, Figure 4, and Figure 5, respectively. According to the wear analysis of the test block, the XM-6 surfacing electrode was selected. 
3. Cost analysis
Although the main blade is required to be cut and machined before surfacing, but the preheating and post-weld insulation of the main blade and the body before welding are reduced, the main blade of the surfacing is still much cheaper than the cast steel material, and is relatively cheaper than The performance of cast steel materials has been greatly improved, reducing after-sales service. In addition, from the perspective of cost, the surfacing main blade is also superior to the original cast steel material, and Table 3 is the comparison of the production cost of the main blade.
Using the selected welding rod XM-6 as the surfacing material, the first batch of 100 loaders was tested, and the test loader was marketed after 3 months of use. The results show that the main blade after surfacing is well reflected in the market, and the wear resistance is greatly improved compared with the previous ones, especially the problem of the main blade fracture has been eliminated. 
The surfacing main blade instead of the cast steel main blade not only improves the wear resistance of the main blade, but also fundamentally solves the problem of the fracture of the cast steel main blade and improves the performance of the loader.