In the construction process of municipal engineering, earthwork, water conservancy engineering, water and electricity engineering, sports facilities engineering, landscaping engineering, the construction of engineering machinery is inseparable from a product, that is, the concrete transport pump pipe, the inner wall of the concrete pump pipe pipe through quenching heat treatment, the service life will be greatly improved. Some manufacturers with pump trucks, generally use outsourcing pump pipe, but due to the slow delivery time, the progress of each aspect is difficult to guarantee, have carried out the pump pipe quenching machine set equipment procurement, to carry out production and processing.
Domestic everywhere in the big open construction at present, the ground buildings everywhere, municipal engineering, conditions, water engineering, water and electricity engineering, sports facilities engineering, the botanical garden afforestation project construction is inseparable from the concrete pump truck, truck mixer pump truck in place for engineering, and applied to concrete pump truck delivery pump pipe quality, directly will affect the progress of the project construction, in order to improve the service life of the pump car pump pipe and the strength of the load resistance, in the process of manufacturing pump pipe, the introduction of super audio quenching heat treatment of the new technology of pump pipe wall, after the lining of the inner surface of induction hardening heat treatment, The service life of the pump pipe is greatly improved, which promotes the progress of the project and reduces the scrap rate of the product. The hardened concrete pump pipe can deliver nearly 10 thousand cubic meters of concrete. There are wear-resisting pump pipes on both sides in the market, but the operation is more complex and less applied.
I. a complete set of induction hardening equipment for the inner wall of concrete pump truck includes:
1. Induction heating and quenching power supply: type yfl-160 equipment
2. Horizontal CNC quenching and heat treatment machine with a total length of about 11 meters.
2. The description of the heat treatment power supply furnace equipment on the inner wall of concrete pump pipe is as follows:
1, equipment main circuit USES the German import core components IGBT, adopts inverter principle, finish all kinds of workpiece surface heating and penetrates the infiltration heating, heating speed, no pollution, energy saving save electricity, high frequency than old and thyristor medium frequency power saving 20% ~ 30%, and cutting without starting voltage, high power factor and no pollution to grid.
2. Parameters of power supply equipment applied to induction quenching of inner wall of pump pipe:
Model: YFL - 160
Power: 160 kw
Output current: 230A
Equipment includes: main control power cabinet + quenching transformer
Master control device size: 650*480*1440mm3
Quenching transformer size: 500×800×580mm3
3. Process requirements for the inner wall of the heat-treated pump pipe:
1. Surface quenching hardness: HRC52~58
2. Detection of effective quenching depth: 1.6~2.2mm
3. Quenching speed: 200-400mm/ min, 3.5m concrete pump about 6-7 minutes a.
4. The quenching water temperature is lower than: 45℃
5. Electricity consumption during quenching: 3 ℃ / m.
6. There is almost no deformation after quenching.
7. The service life of concrete pump pipe is increased 3-5 times
Four. CNC horizontal quenching machine tool
1, as a result of the pump pipe inner hole length of 4 meters, to meet the production of mechanization, now form a complete set of new CNC quenching machine tool, by variable speed motor, CNC system, stepless speed regulation, high precision ball screw drive guide rail and independent operation platform, display, and high frequency quenching equipment organically unifies in together, meet all kinds of pipe heat treatment. Easy to operate and fast. Uniform quenching quality. Travel speed, rotation speed, etc. Adjustable. Details can be reached by phone.
This complete set of quenching equipment has been successfully applied, from the customer's use of materials, there are two kinds, one is 45#, the other is 45 mn2, carbon content is suitable for surface induction quenching.
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