Examples surfacing
First, backhoe loader blade welding methods and effectiveness
1, examples of mine surfacing with loader
Zhao Qian'an City Dadianzi use wear-resistant iron rod Tenglong D-266 and D-50 surfacing blade shovel loaders, loader made in a cost-saving benefits of 2592 yuan, welding method and benefit analysis are as follows:
(1) Methods: D-266 wear-resistant base electrode, D-50 cover, surfacing about the thickness of 5mm; will shovel blade edge is the back of all Department of welding, surfacing width of 3CM; the shovel along the bottom edge Ministry of the edge cladding layer, at a wide 15CM vertical surfacing 2CM, the cladding layer 20CM long. At this electrode when used according to instructions, before welding electrode drying, cleaning up pieces of pre-welded, cold relief after welding.
(2)-benefit analysis: using the above method of welding two-edged shovel loader, or loader first before surfacing, the use of a two month after the surfacing of a backhoe loader blade can be used for 6 months, extend the useful life of Month 4. Backhoe loaders do not surfacing edge of the general life of 2 months.
① surfacing the cost of a shovel blade:
Electrode: 7.5 (kg) × 40 (yuan / kg) = 300 (million); time: 4 hours × 25 (yuan / Public Works) = 12.5 (million); electricity: 70 (degrees) × 0.56 (yuan / degree) = 39.2 (million); Total: 300 (million) +12.5 (million) +39.2 (yuan) ≈ 352 (million).
② surfacing of the loader shovel blade, use the 6-month cost-edged spade a spade blade = Price +2 sub surfacing costs = 800 (yuan / month) +352 (million) × 2 = 1504 (million).
③ not surfacing blade shovel loaders, the use of 6-month cost of shovel blade shovel blade = 3 Price +2 times the replacement costs shovel blade = 800 (yuan / month) × 3 +200 (Yuan / time) × 2 = 2800 (yuan ).
④ surfacing of the loader shovel blade, the use of cost-saving 6 months = ③ - ② = 2800 (million) -1504 (million) = 1296 (million).
⑤ surfacing of the loader shovel blade in cost savings = ④ × 2 = 1296 (yuan) × 2 = 2592 (million). 

2, Iron Works example with surfacing Loader
Qian'an Iron City Quartet companies use D-65 Wear-resistant welding rod loader shovel blade, made a loader 9382.45 yuan in cost-saving benefits, and benefit analysis of welding is as follows:
(1) Methods: D-65 Wear-resistant welding electrodes one layer of surfacing about the thickness of 5mm; welding parts for the blade plate and its edge is the back. Surfacing width: positive, from the edge to where the Department of 3cm wide surfacing; back from the edge to where the Department of 6cm wide welding, all welding edge; shovel blade bottom edge of vertical cladding layer Department every 15CM A wide vertical surfacing 2CM, the cladding layer 16CM long. At this electrode when used according to instructions, before welding electrode drying, cleaning up pieces of pre-welded, cold relief after welding.
(2)-benefit analysis: using the above method of surfacing the loader shovel blade, use the day for 60 days, which is equivalent to not 3 times the life of surfacing. Benefit analysis are as follows:
① surfacing the cost of a shovel blade:
Electrode: 10 (kg) × 40 (yuan / kg) = 400 (million); time: 4 hours × 25 (yuan / Public Works) = 12.5 (million); electricity: 70 (degrees) × 0.56 (yuan / degree) = 39.2 (million); Total: 400 (million) +12.5 (million) +39.2 (yuan) ≈ 452 (million).
② surfacing blade shovel loaders, shovel blade daily use cost = (price of a shovel blade welding charges +1) ÷ days = 800 +452 (million) ÷ 60 days = 20.87 (million).
③ not surfacing blade shovel loaders, shovel blade daily use of the cost of a shovel blade == Price ÷ days = 800 ÷ 20 days = 40.
④ surfacing blade shovel loaders, the daily cost = ③ - ② = 40 (million) -20.87 (million) = 19.13 (million).
⑤ surfacing of the loader shovel blade savings in direct costs = ④ × 365 (days) = 19.13 (million) × 365 (days) = 6982.45 (million).
⑥ surfacing blade shovel loaders, the replacement of the number of years to reduce the cost savings = (not the number of surfacing replacement - the replacement of the number of surfacing) × each replacement costs = (number of days in the cycle of surfacing ÷ not days - in the number of days ÷ surfacing days cycle) × each replacement cost = (365 days ÷ 20 days - 365 days ÷ 60 days) × cost per replacement = (18-6) × 200 of $ = 12 × 200 CNY = 2400 ( million).
⑦ surfacing of the loader shovel blade in the full cost savings = ⑤ + ⑥ = 6982.45 (million) +2400 = 9382.45 million (million).