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China Professional Manufacture Custom Parts Pneumatic Hammer Magnesium Forged Aluminum Wheel Blanks
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
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Product Paramenters
Product Name | scraper | Material | 40Cr |
Color | Primary colors | MOQ | 100 |
Attributes | Coal mine forgings, mine accessories | Sample Service | Support |
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FAQ
1: What is the difference between forgings and castings?
-The forging is to heat the metal to 1100°C, and use the forging equipment to apply pressure to the metal blank to produce plastic deformation, so as to achieve the size and shape required by the drawing. The casting heats the metal to a liquid state, and uses pouring, injection, suction or other The casting method is poured into a pre-prepared mold, and is obtained by subsequent processing methods such as grinding after cooling. In contrast, forgings are of higher quality than castings, with higher density, good toughness, strong wear resistance, excellent mechanical properties, longer service life, and raw material savings.
2: What processes are included in forging production?
The general forging production process consists of 7 links
-1. Unload the round steel of appropriate specifications and use a circular saw to the required length.
-2. Heating, sawing round steel of specified length, using intermediate frequency heating electric furnace to heat to 1100 degrees, the purpose is to improve the plasticity of the metal and reduce its deformation resistance, that is, to improve the forgeability of the metal.
-3. Forging, the heated billet undergoes plastic deformation under the impact of the 8000-ton press, thereby changing its size and shape and optimizing the internal structure of the material.
-4. Trimming, using a press to cut off the forging flash, waste and other excess parts, so as to get the current situation as needed.
-5. Grinding to remove excess burrs at the cutting edge.
-6. Quality inspection of forgings, appearance quality inspection: geometric size, shape, surface condition of forgings, internal quality inspection: chemical composition, macrostructure, metallographic structure, mechanical properties of forgings, etc.
-7. Heat treatment of forgings. Purpose of heat treatment: uniform structure, refine grain, reduce forging residual stress, adjust hardness, improve machining performance, prepare for final heat treatment, commonly used heat treatment methods: normalizing, annealing, etc.
3. How to maintain the scraper during use?
-Check the casing and bottom of the scraper machine for leaks from the end of the day to the next day before starting the machine; check the various parts of the equipment once a day or a week, check whether the scraper chain is deformed or broken, and whether the cotter pin at the chain connection is present Fall off.
-Regularly clean the windings on the head and tail rollers of the scraper. The conveying scraper in front of the scraper must be cleaned at least once a week. The conveying scraper after the scraper must be cleaned at least once a month. The scraper under the mixer must be cleaned at least once a month. Clean up the accumulation of materials once a week.
Check the temperature control of the bearing housing and reducer during the working process, and clean and lubricate them regularly every month.
-Before shutting down, stop feeding and run for about 2 minutes, which helps to empty the material.
4. How to install the scraper of the scraper correctly?
-The scraper scraper is combined with the chain and bolts to form a scraper chain. Of course, some are composed of the scraper scraper, beam, single bolt and chain. The bolt passes through the threaded hole on the scraper to press the chain and the beam together. Fixed, and when the scraper scraper is installed in the middle slot of the scraper, it needs to face down and the other side up, so that the coal can be scraped forward in the middle slot. When the scraper conveyor starts to run, The sprocket assembly drives the scraper chain to reciprocate.
5. In general, how long is the service life of forging molds? How many times can a mold be repaired?
-For low-alloy structural steel forging, the one-time service life of the forging die varies according to the complexity and precision of the shape of the forging. The die forging hammer has a die life of 4,000 to 7,000 pieces. However, the new type of program-controlled full hydraulic die forging hammer, because its energy and program can be set and controlled, the die life has been improved. The die life of screw press is slightly lower than that of mechanical press, and the die life of mechanical press can generally reach 10,000 to 25,000. The service life of connecting rod mold is 15,000 to 25,000, the life of crankshaft mold is 8,500 to 18,000, the life of steering knuckle mold is 6,000 to 14,000, and the life of gear mold is 10,000 to 35,000. . The average life of domestic mechanical press molds is 5,000 to 8,000, while friction press molds have a lower life of 2,000 to 3,500, generally only about 25,000.
-In general, the repair life of a pair of molds is about 5 to 10 times.
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