A kind of manufacture method of ramming machine tamping plate
Technical field
The invention belongs to machinery manufacturing technology field, more particularly, relate to the processing of a kind of ramming machine tamping plate and heat-treating methods.
Background technology
In construction work, need to carry out sufficient compacting to foundation soil, to reduce the space between soil particle, increase its compaction rate, ensure the stability of ground, obtain enough supporting capacitys.Compacting for ground adopts ramming machine usually, and its principle of work utilizes weight at the potential energy of certain altitude, changes kinetic energy into impact by pressure layer, to make to be pressed the compaction rate of layer to be increased after falling.And in the course of the work, when the potential energy of eccentric block changes kinetic energy into impact by pressure layer, shock action being directly passed to by the component of pressure layer is tamping plate, therefore tamping plate serves the effect of transmitting surging force in whole process, it needs enough intensity and toughness, to ensure having good work-ing life.
Summary of the invention
For existing ramming machine in the course of the work, because of the intensity of tamping plate and toughness not high, and then affect the problem in its work-ing life, the invention provides a kind of manufacture method of ramming machine tamping plate, it is by reconfiguring ramming machine tamping plate material, and coordinate suitable thermal treatment process, its intensity and toughness are improved, reach the object improving its work-ing life.
For solving the problem, the present invention adopts following technical scheme.
A manufacture method for ramming machine tamping plate, comprises the following steps:
(1) preparation of ramming machine tamping plate material:
The mass percent of ramming machine tamping plate material component is: C:0.80-0.95%, Cr:1.30-1.70%, Mn:1.25-1.40%, Si :≤0.60%, S :≤0.40%, and all the other are Fe;
(2) forging of ramming machine tamping plate;
(3) anneal of ramming machine tamping plate:
Ramming machine tamping plate is heated to 650-750 DEG C, and the laggard sector-style of held for some time is cold;
(4) precision work of ramming machine tamping plate;
(5) quench treatment of ramming machine tamping plate:
Ramming machine tamping plate is heated to 820-850 DEG C, insulation 2
hafter carry out oil quenching;
(6) temper of ramming machine tamping plate:
Ramming machine tamping plate is heated to 450-500 DEG C and carries out tempering, tempering twice, the laggard line space of tempering is cold.
Preferably, in described step (1), the mass percent of ramming machine tamping plate material component is: C:0.90%, Cr:1.40%, Mn:1.35%, Si :≤0.60%, S :≤0.40%, and all the other are Fe.
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is by reconfiguring ramming machine tamping plate material, and coordinates suitable thermal treatment process, and its intensity and toughness are improved.
(2) the inventive method is simple, and cost is low, handling ease.
Embodiment
Describe the present invention below in conjunction with embodiment.
embodiment 1
A manufacture method for ramming machine tamping plate, comprises the following steps:
(1) preparation of ramming machine tamping plate material:
The mass percent of ramming machine tamping plate material component is: C:0.80%, Cr:1.30%, Mn:1.25%, Si :≤0.60%, S :≤0.40%, and all the other are Fe;
(2) forging of ramming machine tamping plate;
(3) anneal of ramming machine tamping plate:
Ramming machine tamping plate is heated to 650 DEG C, and the laggard sector-style of held for some time is cold;
(4) precision work of ramming machine tamping plate;
(5) quench treatment of ramming machine tamping plate:
Ramming machine tamping plate is heated to 820 DEG C, insulation 2
hafter carry out oil quenching;
(6) temper of ramming machine tamping plate:
Ramming machine tamping plate is heated to 450 DEG C and carries out tempering, tempering twice, the laggard line space of tempering is cold.
embodiment 2
A manufacture method for ramming machine tamping plate, comprises the following steps:
(1) preparation of ramming machine tamping plate material:
The mass percent of ramming machine tamping plate material component is: C:0.95%, Cr:1.70%, Mn:1.40%, Si :≤0.60%, S :≤0.40%, and all the other are Fe;
(2) forging of ramming machine tamping plate;
(3) anneal of ramming machine tamping plate:
Ramming machine tamping plate is heated to 750 DEG C, and the laggard sector-style of held for some time is cold;
(4) precision work of ramming machine tamping plate;
(5) quench treatment of ramming machine tamping plate:
Ramming machine tamping plate is heated to 850 DEG C, insulation 2
hafter carry out oil quenching;
(6) temper of ramming machine tamping plate:
Ramming machine tamping plate is heated to 500 DEG C and carries out tempering, tempering twice, the laggard line space of tempering is cold.