CN102296252A - High manganese steel balancing piece for inverter compressors and manufacturing method thereof - Google Patents
High manganese steel balancing piece for inverter compressors and manufacturing method thereof Download PDFInfo
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- CN102296252A CN102296252A CN2011102196658A CN201110219665A CN102296252A CN 102296252 A CN102296252 A CN 102296252A CN 2011102196658 A CN2011102196658 A CN 2011102196658A CN 201110219665 A CN201110219665 A CN 201110219665A CN 102296252 A CN102296252 A CN 102296252A
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Abstract
The invention discloses a high manganese steel balancing piece for inverter compressors and a manufacturing method thereof. The balancing piece provided by the invention is made from high manganese steel which comprises the following elements of: by weight, 0.2-1.5% of C, 13-25% of Mn, S being less than or equal to 0.1%, P being less than or equal to 0.1%, Si being less than or equal to 1%, Cr being less than or equal to 5%, Ni being less than or equal to 2%, and the balance being Fe. By investment casting technology to manufacture the balancing piece for compressors, the shape and dimension of the product can be effectively guaranteed, especially the components are controllable, the batch production capability is large, and the manufacturing cost of the balancing piece for compressors is effectively reduced.
Description
Technical field
The present invention relates to a kind of frequency-changeable compressor counterbalance weight; The invention still further relates to the making method of a kind of frequency-changeable compressor with counterbalance weight.
Background technology
Counterbalance weight is the important spare part of compressor, and for a long time, frequency-changeable compressor industry counterbalance weight material all is that because it is a non-magnetic material, density is big, good plasticity with brass material (copper zinc alloy).But because the nonferrous metal resource shortage causes selling at exorbitant prices, stirs violently, the production of frequency-changeable compressor counterbalance weight is impacted now, cause the production cost of products height.And the lead element in the copper alloy is big to human body and environmental hazard, is used material by European Union's row restriction.
Gravitational casting (or forge hot) ~ post-treatment is generally adopted in the making of traditional copper alloy, the frequency-changeable compressor counterbalance weight is because it is complex-shaped, dimensional precision is high, when post-treatment, need special-purpose precision equipment and technician to operate, because of making the comprehensive manufacturing cost height of processing industry, cause copper spare manufacturing expense higher, cause very big influence for the production cost of compressor producer for these several, the utmost point is unfavorable for the market competition of product.
GB GBT 5680-1998 has stipulated that the high mangaenese steel national standard is divided into 5 trades mark, and the key distinction is the content of carbon, and its scope is 0.75% ~ 1.45%.It is big to be hit, and carbon content is low.Manganese content generally should not be lower than 13% between 11.0% ~ 14.0%.Ultra-high manganese steel does not still have GB.The counterbalance weight that the high manganese steel material of manganese content between 11.0% ~ 14.0% made, its magnetic permeability can't satisfy the requirement of frequency-changeable compressor counterbalance weight, so the counterbalance weight of the high manganese steel material inapplicable frequency-changeable compressor of manganese content between 11.0% ~ 14.0% is made.
Application number 200710145503.8 discloses a kind of non-magnetic alloy of making counterbalance weight in Chinese patent application, it is by 5 ~ 20% manganese, 5 ~ 20% chromium, 0.05 ~ 1.5% sulphur, 0.4 ~ 3% copper, 0 ~ 1.5% nickel, carbon≤0.15%, silicon≤1%, phosphorus≤0.05%, and the iron of surplus and micro impurity element composition, because this prescription interalloy element contained kind, ratio are too much, the whole cost of counterbalance weight is higher, and the element kind is too much had relatively high expectations to the quality management and control of counterbalance weight, lead element in the copper alloy is big to human body and environmental hazard, is used material by European Union's row restriction.Forging Technology, square position and the processing inconvenience of water caltrop position for counterbalance weight easily exist to lack material, the protruding defective of cutting edge; Defectives such as in addition hot rolling and cold-drawn complete processing, product processed easily produce crack, pit, dimension overproof, inhomogeneity of wall thickness, be mingled with, this badness will influence the compressor use properties, and quality is difficult to assurance.
Therefore, seek a kind of material of alternative copper alloy, and provide a kind of technology to make helping, thereby break away from dependence, reduce the production cost of frequency-changeable compressor counterbalance weight greatly, improve the market competitiveness non-ferrous metals such as copper alloys.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of frequency-changeable compressor counterbalance weight, can substitute the counterbalance weight that adopts non-ferrous metal to make, avoid following process, performances such as its dimensional precision, magnetic permeability, vibration, noise, balance can satisfy the requirement of compressor fully.The present invention also will provide the making method of a kind of frequency-changeable compressor with counterbalance weight.
In order to solve the problems of the technologies described above, a kind of frequency-changeable compressor counterbalance weight of the present invention, described counterbalance weight is made by high mangaenese steel, and each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus.
A kind of frequency-changeable compressor of the present invention making method of counterbalance weight is characterized in that may further comprise the steps:
S1, select for use high mangaenese steel as starting material, each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, and Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus;
S2, Mold Making;
S3, employing shaping investment pattern equipment are with the monomer shaping investment pattern;
S4, wax-pattern assembling;
S5, employing shell mould molding equipment are with the shell mold forming;
S6, employing frequency conversion counterbalance weight molding device are with the moulding of frequency conversion counterbalance weight;
S7, with the finished product rustproof packing.
Shaping investment pattern equipment comprises the wax machine of penetrating automatically, wax treatment unit, central air conditioning and frozen water generator among the described step S3.
Wax-pattern by the concrete steps of penetrating wax machine injection-compression molding automatically is among the described step S3: the wax liquid implantation temperature that (1) will conform with service requirements is 50 ℃ ~ 80 ℃ the wax machine of penetrating an automatically wax liquid hold tank; (2) wax liquid is that to be pressed into temperature be 9 ℃ ~ 22 ℃ mould to 40kg ~ 70kg by set cylinder pressure by processing requirement; (3) the wax liquid that is pressed into pressure by process stipulation in mould is 20kg ~ 55kg, time length 3s ~ 40s cooled and solidified; (4) wax-pattern takes out and removes the technology episome from mould, obtains the monomer wax-pattern; (5) to put into temperature be that 15 ℃ ~ 25 ℃ thermostat(t)ed water continues the cooling insulation heart and obtains the stable monomer wax-pattern of geometrical dimension to the monomer wax-pattern.
Described shell mould molding equipment comprises that the shell mold materials mixes system device, fixed temperature and humidity device, dewaxing still and shell mould calciner, behind the shell mold forming, put the dewaxing still into and realize separating of wax-pattern and shell mould, in shell mould calciner, remove the impurity in the shell mould then and obtain suitable hot strength.
Also to carry out surface treatment successively after the moulding of frequency conversion counterbalance weight among the described step S6, organize stabilization and degaussing to handle.
Described surface treatment is to adopt cutting machine that the additional product of frequency conversion counterbalance weight and technology are separated, and adopts shot-blasting machine to remove frequency conversion counterbalance weight Superficial Foreign Body to obtain bright and clean surface then.
Frequency conversion counterbalance weight molding device comprises middle frequency furnace and direct reading spectroscopic analyser among the described step S6.
Adopt anti-tarnish paper or anti-rust film to carry out finished product packing among the described step S7.
The invention has the beneficial effects as follows: the present invention adopts high mangaenese steel to make the frequency-changeable compressor counterbalance weight, its normal temperature metallographic structure is single austenite, even structure, fine and close, stablize and do not undergo phase transition, it is low to contain the magnetic rate by suitable later stage art breading remnants, resistance to atmospheric corrosion energy and density are near copper alloy, and production cost to be 40 ~ 50%. of copper alloy adopt high mangaenese steel to substitute the impact that the copper alloy made compressor balance can be alleviated the household appliances market, simultaneously because the reduction significantly of production cost, improve the competitive power of enterprise and industry, helped widening domestic and international market.
Embodiment
Of the present invention a kind of frequency-changeable compressor counterbalance weight, described counterbalance weight is made by high mangaenese steel, and each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, and Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus.Adopt high mangaenese steel to substitute copper alloy made frequency-changeable compressor counterbalance weight and can alleviate the dependence of household electric appliances non-ferrous metal, avoid because of the impact of nonferrous materials market big ups and downs the household appliances market, simultaneously because the reduction significantly of production cost, improve the competitive power of enterprise and industry, help widening domestic and international market.Wherein, carbon is the element of stable austenite, and the degree of effect very big (be about nickel 30 times), and carbon content increases in the steel, and yield-point and tensile strength raise.Add silicon as reductive agent and reductor in steelmaking process, silicon can significantly improve the elastic limit of steel, yield-point and tensile strength.Add the silicon of 1.0-1.2% in steel, intensity can improve 15-20%.The content of manganese can increase austenitic stability, effectively guarantees the nonmagnetic or weak magnetic requirement of counterbalance weight.Manganese has good deoxidizing capacity.Because manganese can form the MnS of high-melting-point (1600 ℃) with sulphur, eliminated the deleterious effect of sulphur to a certain extent.Can become MnO with the FeO in the steel and enter slag, thereby improve the quality of steel, particularly reduce the fragility of steel, improve the intensity and the hardness of steel.Chromium can significantly improve intensity, hardness and wear resistance, can improve the oxidation-resistance and the erosion resistance of steel again.Nickel can be solid-solubilized in the austenite of non-magnetic alloy, obviously increases its stability, and nickel can suppress separating out of carbide between 300 ~ 550 ℃, nickel can improve the intensity of steel, and keep good plasticity and toughness, and soda acid there is higher corrosion resistance, at high temperature have antirust and temperature capacity.
A kind of frequency-changeable compressor of the present invention making method of counterbalance weight is characterized in that may further comprise the steps:
S1, select for use high mangaenese steel as starting material, each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, and Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus;
S2, Mold Making;
S3, employing shaping investment pattern equipment are with the monomer shaping investment pattern;
S4, wax-pattern assembling;
S5, employing shell mould molding equipment are with the shell mold forming;
S6, employing frequency conversion counterbalance weight molding device are with the moulding of frequency conversion counterbalance weight;
S7, with the finished product rustproof packing.
Make the compressor balance piece by above-mentioned solvent casting technology, can effectively guarantee shape and size, the especially controllable component of product, the batch process ability is big, effectively reduces the cost of manufacture of compressor balance piece.
Shaping investment pattern equipment comprises the wax machine of penetrating automatically, wax treatment unit, central air conditioning and frozen water generator among the described step S3.Wherein the wax treatment unit is used for the reliable and stable wax liquid of obtained performance and realizes recycling of wax material.The frozen water generator is used to guarantee that the wax fluidity can parameter stability.Wax-pattern by the concrete steps of penetrating wax machine injection-compression molding automatically is among the described step S3: the wax liquid implantation temperature that (1) will conform with service requirements is 50 ℃ ~ 80 ℃ the wax machine of penetrating an automatically wax liquid hold tank; (2) wax liquid is that to be pressed into temperature be 9 ℃ ~ 22 ℃ mould to 40kg ~ 70kg by set cylinder pressure by processing requirement; (3) the wax liquid that is pressed into pressure by process stipulation in mould is 20kg ~ 55kg, time length 3s ~ 40s cooled and solidified; (4) wax-pattern takes out and removes the technology episome from mould, obtains the monomer wax-pattern; (5) to put into temperature be that 15 ℃ ~ 25 ℃ thermostat(t)ed water continues the cooling insulation heart and obtains the stable monomer wax-pattern of geometrical dimension to the monomer wax-pattern.In the Mold Making process in conjunction with employed starting material---the cooling conditions of the solidification shrinkage characteristic of wax, the solidification shrinkage characteristic of high mangaenese steel, monomer wax-pattern, the use temperature of wax liquid and be pressed into processing condition such as mode, establishment technology of die manufacturing scheme, reserve the appropriate size shrinkage, rational wax hydraulic pressure is set goes into passage; Mould is made, checked and accepted to the technical scheme that the root a tree name is formulated.
Described shell mould molding equipment comprises that the shell mold materials mixes system device, fixed temperature and humidity device, dewaxing still and shell mould calciner, behind the shell mold forming, put the dewaxing still into and realize separating of wax-pattern and shell mould, in shell mould calciner, remove the impurity in the shell mould then and obtain suitable hot strength.Its mesochite mold materials mixes the system device and is used to obtain the material of making qualified shell mould.The fixed temperature and humidity appliance ensure shell mould hardened forming under fixed processing parameter condition obtain the ideal normal temperature strength.
Also to carry out surface treatment successively after the moulding of frequency conversion counterbalance weight among the described step S6, organize stabilization and degaussing to handle.Described surface treatment is to adopt cutting machine that the additional product of frequency conversion counterbalance weight and technology are separated, and adopts shot-blasting machine to remove frequency conversion counterbalance weight Superficial Foreign Body to obtain bright and clean surface then.Wherein, it is the moulding of frequency conversion counterbalance weight to be placed in the demagnetization liquid soak that degaussing is handled, and soak time is by process stipulation.The surface is that the frequency conversion counterbalance weight is placed continous way " surface and tissue are stable " processing stove temperature and time in accordance with regulations with organizing stabilizing treatment; under the protection of rare gas element, heat, cool off, thereby realize the metallographic structure of frequency conversion counterbalance weight stable and surface-brightening and purpose.
Frequency conversion counterbalance weight molding device comprises middle frequency furnace and direct reading spectroscopic analyser among the described step S6.Wherein, middle frequency furnace is used to prepare the high mangaenese steel metal liquid that generation meets processing requirement.The direct reading spectroscopic analyser is used for high mangaenese steel main component carbon, silicon, manganese, phosphorus, sulphur are realized monitoring in real time and adjustment.
Adopt anti-tarnish paper or anti-rust film to carry out finished product packing among the described step S7, to improve the antirust guarantee of product.
The above only is a preferential embodiment of the present invention, as long as realize that with basic identical means the technical scheme of the object of the invention all belongs within protection scope of the present invention.
Claims (9)
1. frequency-changeable compressor counterbalance weight is characterized in that described counterbalance weight made by high mangaenese steel, and each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, and Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus.
2. a frequency-changeable compressor is characterized in that may further comprise the steps with the making method of counterbalance weight:
S1, select for use high mangaenese steel as starting material, each element wt proportioning is in the described high mangaenese steel: C 0.2% ~ 1.5%, and Mn 13 ~ 25%, S≤0.1%, P≤0.1%, Si≤1%, Cr≤5%, Ni≤2%, Fe surplus;
S2, Mold Making;
S3, employing shaping investment pattern equipment are with the monomer shaping investment pattern;
S4, wax-pattern assembling;
S5, employing shell mould molding equipment are with the shell mold forming;
S6, employing frequency conversion counterbalance weight molding device are with the moulding of frequency conversion counterbalance weight;
S7, with the finished product rustproof packing.
3. frequency-changeable compressor according to claim 2 is characterized in that with the making method of counterbalance weight shaping investment pattern equipment comprises the wax machine of penetrating automatically, wax treatment unit, central air conditioning and frozen water generator among the described step S3.
4. frequency-changeable compressor according to claim 3 is characterized in that wax-pattern by the concrete steps of penetrating wax machine injection-compression molding automatically is among the described step S3 with the making method of counterbalance weight: the wax liquid implantation temperature that (1) will conform with service requirements is 50 ℃ ~ 80 ℃ the wax machine of penetrating an automatically wax liquid hold tank; (2) wax liquid is that to be pressed into temperature be 9 ℃ ~ 22 ℃ mould to 40kg ~ 70kg by set cylinder pressure by processing requirement; (3) the wax liquid that is pressed into pressure by process stipulation in mould is 20kg ~ 55kg, time length 3s ~ 40s cooled and solidified; (4) wax-pattern takes out and removes the technology episome from mould, obtains the monomer wax-pattern; (5) to put into temperature be that 15 ℃ ~ 25 ℃ thermostat(t)ed water continues the cooling insulation heart and obtains the stable monomer wax-pattern of geometrical dimension to the monomer wax-pattern.
5. the frequency-changeable compressor according to claim 4 making method of counterbalance weight, it is characterized in that described shell mould molding equipment comprises that the shell mold materials mixes system device, fixed temperature and humidity device, dewaxing still and shell mould calciner, behind the shell mold forming, put the dewaxing still into and realize separating of wax-pattern and shell mould, in shell mould calciner, remove the impurity in the shell mould then and obtain suitable hot strength.
6. frequency-changeable compressor according to claim 4 is characterized in that also will carrying out surface treatment successively after the moulding of frequency conversion counterbalance weight among the described step S6, organizes stabilization and degaussing to handle with the making method of counterbalance weight.
7. the frequency-changeable compressor according to claim 6 making method of counterbalance weight, it is characterized in that described surface treatment is to adopt cutting machine that the additional product of frequency conversion counterbalance weight and technology are separated, and adopts shot-blasting machine to remove frequency conversion counterbalance weight Superficial Foreign Body to obtain bright and clean surface then.
8. frequency-changeable compressor according to claim 4 is characterized in that with the making method of counterbalance weight frequency conversion counterbalance weight molding device comprises middle frequency furnace and direct reading spectroscopic analyser among the described step S6.
9. frequency-changeable compressor according to claim 4 is characterized in that adopting among the described step S7 anti-tarnish paper or anti-rust film to carry out finished product packing with the making method of counterbalance weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102196658A CN102296252A (en) | 2011-08-02 | 2011-08-02 | High manganese steel balancing piece for inverter compressors and manufacturing method thereof |
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| CN2011102196658A CN102296252A (en) | 2011-08-02 | 2011-08-02 | High manganese steel balancing piece for inverter compressors and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528040A (en) * | 2012-02-24 | 2012-07-04 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN102690999A (en) * | 2012-05-29 | 2012-09-26 | 富阳环通电力器材有限公司 | Free-cutting and corrosion-resisting non-magnetic high manganese steel balance block for compressor |
| CN103302240A (en) * | 2013-06-08 | 2013-09-18 | 衡阳市嘉励运动器材有限公司 | Production process of wax mould |
| CN103695794A (en) * | 2013-12-24 | 2014-04-02 | 舒思雄 | Balance block for compressor and manufacturing method for balance block |
| CN104294176A (en) * | 2014-09-19 | 2015-01-21 | 东莞市迅盈精密五金有限公司 | Stainless steel nonmagnetic material and counterbalance prepared from same |
| CN104962823A (en) * | 2015-06-11 | 2015-10-07 | 临汾通泽铸锻有限公司 | Novel wear-resisting steel material |
| CN105624568A (en) * | 2016-02-22 | 2016-06-01 | 桐乡市搏腾贸易有限公司 | Stable and reliable automobile balancing block and production process thereof |
| CN110640081A (en) * | 2019-09-27 | 2020-01-03 | 中国航发南方工业有限公司 | Forming process method of thin-wall sheet wax mould and thin-wall sheet wax mould |
-
2011
- 2011-08-02 CN CN2011102196658A patent/CN102296252A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528040A (en) * | 2012-02-24 | 2012-07-04 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN102528040B (en) * | 2012-02-24 | 2013-11-13 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN102690999A (en) * | 2012-05-29 | 2012-09-26 | 富阳环通电力器材有限公司 | Free-cutting and corrosion-resisting non-magnetic high manganese steel balance block for compressor |
| CN103302240A (en) * | 2013-06-08 | 2013-09-18 | 衡阳市嘉励运动器材有限公司 | Production process of wax mould |
| CN103302240B (en) * | 2013-06-08 | 2015-07-29 | 衡阳市嘉励运动器材有限公司 | A kind of wax-pattern production technology |
| CN103695794A (en) * | 2013-12-24 | 2014-04-02 | 舒思雄 | Balance block for compressor and manufacturing method for balance block |
| CN104294176A (en) * | 2014-09-19 | 2015-01-21 | 东莞市迅盈精密五金有限公司 | Stainless steel nonmagnetic material and counterbalance prepared from same |
| CN104962823A (en) * | 2015-06-11 | 2015-10-07 | 临汾通泽铸锻有限公司 | Novel wear-resisting steel material |
| CN105624568A (en) * | 2016-02-22 | 2016-06-01 | 桐乡市搏腾贸易有限公司 | Stable and reliable automobile balancing block and production process thereof |
| CN110640081A (en) * | 2019-09-27 | 2020-01-03 | 中国航发南方工业有限公司 | Forming process method of thin-wall sheet wax mould and thin-wall sheet wax mould |
| CN110640081B (en) * | 2019-09-27 | 2021-08-06 | 中国航发南方工业有限公司 | Forming process method of thin-wall sheet wax mould and thin-wall sheet wax mould |
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Application publication date: 20111228 |