CN102978520A - Rotors of cam rotor pump and preparation method thereof - Google Patents
Rotors of cam rotor pump and preparation method thereof Download PDFInfo
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- CN102978520A CN102978520A CN2012104905437A CN201210490543A CN102978520A CN 102978520 A CN102978520 A CN 102978520A CN 2012104905437 A CN2012104905437 A CN 2012104905437A CN 201210490543 A CN201210490543 A CN 201210490543A CN 102978520 A CN102978520 A CN 102978520A
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Abstract
The invention relates to rotors of a cam rotor pump and a preparation method thereof. The rotors comprise the following components by weight percent: 0.6-1.2% of carbon, 0.3-0.65% of silicon, 0.03-0.035% of titanium, 0.04-0.047% of boron, 0.015-0.023% of chromium, 0.32-0.35% of manganese, 0.02-0.025% of molybdenum, 0.3-0.5% of zinc, 0.0001-0.0005% of cerium and the balance of iron and inevitable impurities. The rotors and the preparation method have the beneficial effects that the problem of compactness caused by casting can be effectively avoided; and the efficiency of the cam rotor pump is ensured.
Description
Technical field
The invention belongs to the pump field, refer to especially a kind of rotor for lobed rotor pump and preparation method thereof.
Background technology
Lobed rotor pump is the multi-purpose bidirectional volumetric pump, and lobed rotor pump adopts two rotors that are synchronized with the movement, and rotor carries out transmission by a pair of external synchronous gear box.Rotor carries out the synchronous backward rotation under the drive of transmission shaft, thereby forms higher vacuum tightness and blowdown presssure between two rotors.Maintain certain gap between the rotor of lobe pump and the rotor, without frictional coefficient, dismounting is simple, can guarantee the continuity maintainability and without leak time, long service life.But also there is defective in lobed rotor pump, and namely transfer pressure is lower, is generally below the 1.6MPa, and in transmission course, rotor is transmitted the generation that frictional force is arranged between the material together, and produces easily cavitation.
The rotor of existing lobed rotor pump adopts casting technique to produce basically, but casting technique has the compactness problem of foundry goods, when rotor and be transferred the appearance that frictional force between the material can cause sand holes, the vacuum tightness of impact between two rotors affects the transmission of pressure of material.
Summary of the invention
The purpose of this invention is to provide a kind of lobed rotor pump rotor material, by the technical program, can effectively avoid because the compactness problem appears in casting, guarantee the efficient of lobed rotor pump.
The present invention is achieved by the following technical solutions:
A kind of field spider pump rotor, its composition is by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus is iron and inevitable impurity.
Described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds.
Described field spider pump rotor preparation method is,
Batching, be by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus are that iron and inevitable impurity calculate batching;
Batch mixing was with the powder of said mixture after adding Zinic stearas in mixer batch mixing 30-60 minute;
Compacting is suppressed 10-60 with mould and is made base substrate second under 650-750MPa;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 150-200MPa pressure, at 1250-1350 ℃ of lower sintering 1-2 hour, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
The beneficial effect that the present invention compares with prior art is:
By the technical program, can effectively avoid because the compactness problem appears in casting, guarantee the efficient of lobed rotor pump.
Embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that following embodiment only is used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
A kind of field spider pump rotor, its composition is by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus is iron and inevitable impurity.
Described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds.
Described field spider pump rotor preparation method is,
Batching, be by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus are that iron and inevitable impurity calculate batching;
Batch mixing was with the powder of said mixture after adding Zinic stearas in mixer batch mixing 30-60 minute;
Compacting is suppressed 10-60 with mould and is made base substrate second under 650-750MPa;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 150-200MPa pressure, at 1250-1350 ℃ of lower sintering 1-2 hour, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
Embodiment 1
Described preparation method is:
Batching, be by weight percentage, 0.6% carbon, 0.3% silicon, 0.03% titanium, 0.04% boron, 0.015% chromium, 0.32% manganese, 0.02% molybdenum, 0.0001% cerium, surplus is that iron and inevitable impurity calculate batching; Described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds;
Batch mixing, with the powder of said mixture after adding Zinic stearas in mixer batch mixing 30 minutes;
Suppress, suppress under 650MPa with mould and make base substrate 30 seconds;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 150MPa pressure, 1250-1350 ℃ of lower sintering 2 hours, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
Embodiment 2
Described preparation method is:
Batching, be by weight percentage, 1.2% carbon, 0.65% silicon, 0.035% titanium, 0.047% boron, 0.023% chromium, 0.35% manganese, 0.025% molybdenum, 0.0005% cerium, surplus is that iron and inevitable impurity calculate batching; Described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds;
Batch mixing, with the powder of said mixture after adding Zinic stearas in mixer batch mixing 60 minutes;
Suppress, suppress under 750MPa with mould and make base substrate 45 seconds;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 200MPa pressure, 1250-1350 ℃ of lower sintering 2 hours, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
Embodiment 3
Described preparation method is:
Batching, be by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the zinc of 0.3-0.5%, the cerium of 0.0001-0.0005%, surplus are that iron and inevitable impurity calculate batching; Described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds;
Batch mixing, with the powder of said mixture after adding Zinic stearas in mixer batch mixing 60 minutes;
Suppress, suppress under 700MPa with mould and make base substrate 60 seconds;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 180MPa pressure, 1250-1350 ℃ of lower sintering 2 hours, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
Claims (3)
1. field spider pump rotor, it is characterized in that: its composition is by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus is iron and inevitable impurity.
2. field spider pump rotor according to claim 1 is characterized in that: described cerium is that to contain cerium be that the cerium-iron alloy mode of 10% weight percent adds.
3. a field spider pump rotor preparation method is it is characterized in that:
Batching, be by weight percentage, the chromium of the titanium of the carbon of 0.6-1.2%, the silicon of 0.3-0.65%, 0.03-0.035%, the boron of 0.04-0.047%, 0.015-0.023%, the manganese of 0.32-0.35%, the molybdenum of 0.02-0.025%, the cerium of 0.0001-0.0005%, surplus are that iron and inevitable impurity calculate batching;
Batch mixing was with the powder of said mixture after adding Zinic stearas in mixer batch mixing 30-60 minute;
Compacting is suppressed 10-60 with mould and is made base substrate second under 650-750MPa;
Sintering is fired in special furnace, is 650-700 ℃ of pre-burning 2 hours in temperature at first, and then band heat is suppressed shaping under 150-200MPa pressure, at 1250-1350 ℃ of lower sintering 1-2 hour, cools to 450-480 ℃ again;
Quench, quench after will be incubated 2 hours in 780-850 ℃ quenching furnance through the base substrate after the cooling, quenching divides two stages, and first stage is that constant temperature is quenched to 550-580 ℃; Quench rates is no more than 15 ℃/minute, and subordinate phase is that nature quenches, be quenched to 130-150 ℃ after, enter annealing furnace;
Insulation was cooled to 130-150 after 2 hours in 550-600 ℃ of annealing furnace; Insulation is 3 hours after being tempered to 200-220 ℃ again, cooling.
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| CN2012104905437A CN102978520A (en) | 2012-11-22 | 2012-11-22 | Rotors of cam rotor pump and preparation method thereof |
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| CN2012104905437A CN102978520A (en) | 2012-11-22 | 2012-11-22 | Rotors of cam rotor pump and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643137A (en) * | 2013-11-12 | 2014-03-19 | 铜陵市肆得科技有限责任公司 | Alloy steel material for large-scale pump bearings and preparation method thereof |
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| CN1439738A (en) * | 2003-03-28 | 2003-09-03 | 西安交通大学 | Multielement high-chromium wear-resisting cast-iron sieve-plate and production thereof |
| CN1703947A (en) * | 2004-06-04 | 2005-12-07 | 上海汽车股份有限公司 | Method for manufacturing chain wheel of mower |
| WO2011122134A1 (en) * | 2010-03-30 | 2011-10-06 | 新日本製鐵株式会社 | Steel for high frequency hardening, roughly molded material for high frequency hardening and process for production thereof, and high-frequency-hardened steel member |
| CN102448156A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Multi-carrier HSUPA (High Speed Uplink Packet Access) enhanced uplink physical channel sending method and system |
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- 2012-11-22 CN CN2012104905437A patent/CN102978520A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1439738A (en) * | 2003-03-28 | 2003-09-03 | 西安交通大学 | Multielement high-chromium wear-resisting cast-iron sieve-plate and production thereof |
| CN1703947A (en) * | 2004-06-04 | 2005-12-07 | 上海汽车股份有限公司 | Method for manufacturing chain wheel of mower |
| WO2011122134A1 (en) * | 2010-03-30 | 2011-10-06 | 新日本製鐵株式会社 | Steel for high frequency hardening, roughly molded material for high frequency hardening and process for production thereof, and high-frequency-hardened steel member |
| CN102448156A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Multi-carrier HSUPA (High Speed Uplink Packet Access) enhanced uplink physical channel sending method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643137A (en) * | 2013-11-12 | 2014-03-19 | 铜陵市肆得科技有限责任公司 | Alloy steel material for large-scale pump bearings and preparation method thereof |
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Application publication date: 20130320 |