CN1563531A - Method for fabricating flange ring - Google Patents
Method for fabricating flange ring Download PDFInfo
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- CN1563531A CN1563531A CN 200410012210 CN200410012210A CN1563531A CN 1563531 A CN1563531 A CN 1563531A CN 200410012210 CN200410012210 CN 200410012210 CN 200410012210 A CN200410012210 A CN 200410012210A CN 1563531 A CN1563531 A CN 1563531A
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Abstract
A processing method for a plane steel collar is carried out according to a tolerance decrement method including the following steps : applying seamless steel tube made of alloy steel to process blanks or applying powder smelt to press blanks, turning : processing in conventional hot process to the selected materials, no carbon penetration heat treatment formed by grinding eliminating the front several procedure accumulation tolerance to get the product after surface process which eliminates the accumulation tolerances of the last several procedures since applying formation procedure by grinding, the smoothness is not greater than 0.01mm roundness is less than 5 mum.
Description
Technical field
The present invention relates to a kind of processing method that is used for the rings of ring throstle.
Background technology
Since ring throstle is born, this is restricting the output and the quality of ring throstle all the time rings, steel traveler to kinematic pair, though through technical staff's improvement for many years, still with ingot speed limit built in 1.7～1.8 ten thousand rev/mins (the reaching 2.2～2.5 ten thousand rev/mins of only a few), when ingot speed be 1.7 ten thousand rev/mins, when diameter of ring is 42 millimeters, the linear velocity of steel traveler on rings is 40 meter per seconds, so the high high-precision rings of speed neither one is done the operation basis, and it is unlikely increasing its speed again.At present, the commonsense method that China makes rings is to be material with the A3 steel plate, and its processing method comprises following operation: 1. punching press blank, and 2. rough turn, 3. finish turning, 4. press polish, 6. 5. carburizing quenches 7. surface treatment.The defective of this processing method be above-mentioned A3 steel plate this just to form banded metallographic structure-to the workpiece (rings) of this round shape in rolling the process of prolonging be inappropriate, so just stayed the disadvantage of " inadequate natural endowment " from the material; And owing to adopt the press polish operation, make workpiece form very big metal internal stress, when stress is released in the high-temperature carburizing, produce corresponding geometry deformation, thus only its roundness allowable tolerance of rings of 50 millimeters of Φ 40～Φ up to 0.2～0.25 millimeter.Therefore say that the metallographic structure of rings material therefor after processing and the machining accuracy of rings (precision of geometry) are all restricting the raising of ingot speed and the prolongation in its service life.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of Plane Ring, technical problem to be solved are to improve the machining accuracy of rings, to reach the purpose that improves ingot speed.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of processing method of Plane Ring, its technical scheme are that the processing method that it successively decreases according to tolerance is carried out, and comprise following operation: 1. adopting material is the seamless steel pipe making blank or the employing powder metallurgy pressed compact spare of steel alloy; 2. turning; 3. by selected material it is carried out conventional heat treatment (promptly it being carried out the heat treatment of conventional its surface abrasion resistance of raising), it is the heat treatment of not having (chemistry) carburizing (be selected material mustn't " carburizing "); 4. grinding-shaping is eliminated the accumulated tolerance of (going out) former procedures; 5. get product after the surface treatment.
In the technique scheme, it can be following operation: 1. adopting material is the seamless steel pipe making blank of rolling bearing steel; 2. turning; 3. by the conventional heat treatment method of rolling bearing steel it is heat-treated, promptly adopt the method for spheroidizing, quenching and lonneal that it is heat-treated; 4. grinding-shaping is eliminated the accumulated tolerance of (going out) former procedures; 5. get product after the surface treatment.The 4. middle grinding of operation can be diamond wheel grinding.
In the technique scheme, it can also be following operation: 1. adopt the powder metallurgy pressed compact spare that sinters; 2. turning; 3. by (routine) heat treatment method of powder metallurgy it is heat-treated, promptly adopt hard-faced method that it is heat-treated; 4. grinding-shaping is eliminated the accumulated tolerance of (going out) former procedures; 5. get product after the surface treatment.The 4. middle grinding of operation can be diamond wheel grinding.
The present invention is according to (the cotton spinning of spinning type, wool spinning, bast fibre spinning, strand etc.) and the spinning environmental requirement adopt wear-resisting, durable steel alloy or powder metallurgy material, the present invention carries out (promptly along with moving after the manufacturing procedure according to the processing method that tolerance is successively decreased, its accumulated tolerance diminishes gradually, until last operation accumulated tolerance is eliminated), owing to adopted the grinding-shaping operation, thereby the accumulated tolerance of former procedures is eliminated fully at grinding process, the flatness (depth of parallelisms of both ends of the surface) of the rings that makes (internal diameter is 45 millimeters) is not more than 0.01 millimeter (being 0.12 millimeter originally), and roundness (circularity of interior circle) is less than or equal to 5 microns (being 0.11 millimeter originally).The present invention has improved the machining accuracy and the surface smoothness of rings, thereby reaches the purpose that improves ingot speed, and then has improved the output and the quality of ring throstle, and has prolonged its service life.And the commonsense method of making rings is to carry out according to the processing method that tolerance increases progressively, and promptly along with moving after the manufacturing procedure, its accumulated tolerance becomes greatly gradually, machining accuracy is low, so says that processing method of the present invention is better than commonsense method.
Description of drawings
Fig. 1 is the structural representation of the Plane Ring that adopts processing method of the present invention and make.
The specific embodiment
Embodiment 1:
The present invention carries out according to the processing method that tolerance is successively decreased, and promptly along with moving after the manufacturing procedure, its accumulated tolerance diminishes gradually, until last operation accumulated tolerance is eliminated (being decreased to the limit).As shown in Figure 1, be example with processing PG-1 type 4251 rings, the present invention includes following operation (step): 1. adopting material is the seamless steel pipe making blank of rolling bearing steel, and this blank making method is a prior art.2. numerically controlled lathe is adopted in turning, and is earlier rough turn to guarantee the requirement on machining accuracy of next procedure, again finish turning.3. by the conventional heat treatment method of rolling bearing steel it is heat-treated, promptly adopt the method for spheroidizing, quenching and lonneal that it is heat-treated.It is the heat treatment of no carburizing, and promptly selected material mustn't " carburizing ", just by selected material it is carried out conventional heat treatment, guarantees the best metallographic structure of this material, to reach the standard of design.4. grinding-shaping is eliminated the accumulated tolerance (making accumulated tolerance be decreased to the limit) of (going out) former procedures.Grinding machine equipment must guarantee to process the uniformity of rings geometry and size, can adopt the diamond wheel grinding instrument to carry out grinding, can not make the performance of the composition influence surface of the work material of cooling medium (liquid).If adopt softer abrasive grinding wheel, the shape that revise emery wheel at any time is to guarantee the uniformity of workpiece dimension.5. get product after the surface treatment.Surface treatment: (1) polishing, can adopt machine glazed finish or electropolishing, select according to condition; (2) all right plating plates surface treatments such as fluorine.Adopt processing method of the present invention to make 800 rings, after testing, its flatness is not more than 0.01 millimeter, and roundness is less than 5 microns.
Embodiment 2:
The present invention carries out according to the processing method that tolerance is successively decreased, and promptly along with moving after the manufacturing procedure, its accumulated tolerance diminishes gradually, until last operation accumulated tolerance is eliminated (being decreased to the limit).The present invention includes following operation (step): 1. adopt the powder metallurgy pressed compact spare (being that first pressing is with regard to product available, that sinter) that sinters.2. turning, with the operation among the embodiment 1 2..3. by the conventional heat treatment method of powder metallurgy it is heat-treated, promptly adopt hard-faced method that it is heat-treated.4. grinding-shaping is eliminated the accumulated tolerance of (going out) former procedures, with the operation among the embodiment 1 4..5. get product after the surface treatment.Surface treatment: polishing, can adopt machine glazed finish or electropolishing, select according to condition, no longer carry out plating.Adopt processing method of the present invention to make 800 rings, after testing, its flatness is not more than 0.01 millimeter, and roundness is less than 5 microns.
Embodiment 3:
The present invention carries out according to the processing method that tolerance is successively decreased, and promptly along with moving after the manufacturing procedure, its accumulative total (amassing) tolerance diminishes gradually, until last operation accumulated tolerance is eliminated (being decreased to the limit).The present invention includes following operation (step): 1. adopting material is the seamless steel pipe making blank of steel alloy, and can adopt material is the seamless steel pipe of structural alloy steel (as ordinary low-alloy steel, automatic steel, quenched and tempered steel, rolling bearing steel) or alloy tool steel (as low-alloy cutting tool steel, high-speed steel, mould steel) or property steel (as abrasion-resistant stee, heat resisting steel, stainless steel).2. turning, with the operation among the embodiment 1 2..3. by selected material it is carried out conventional heat treatment (promptly it being carried out the heat treatment of conventional its surface abrasion resistance of raising), it is the heat treatment of no carburizing, and promptly selected material mustn't " carburizing ".Present embodiment is that the workpiece (rings) of quenched and tempered steel is example with the material, its conventional heat treatment method is described, i.e. quenching, tempering more earlier.4. grinding-shaping is eliminated accumulative total (amassing) tolerance of (going out) former procedures, with the operation among the embodiment 1 4..5. get product after the surface treatment.Surface treatment: (1) polishing, can adopt machine glazed finish or electropolishing, select according to condition; (2) all right plating plates surface treatments such as fluorine.Adopt processing method of the present invention to make 400 rings, after testing, its flatness is not more than 0.01 millimeter, and roundness is not more than 5 microns.
Claims (4)
1, a kind of processing method of Plane Ring is characterized in that the processing method that it successively decreases according to tolerance carries out, and comprises following operation: 1. adopting material is that the seamless steel pipe of steel alloy is made blank or adopted powder metallurgy pressed compact spare; 2. turning; 3. by selected material it is carried out conventional heat treatment, it is the heat treatment of no carburizing; 4. grinding-shaping is eliminated the accumulated tolerance of former procedures; 5. get product after the surface treatment.
2, the processing method of Plane Ring according to claim 1 is characterized in that it can be following operation: 1. adopting material is the seamless steel pipe making blank of rolling bearing steel; 2. turning; 3. by the conventional heat treatment method of rolling bearing steel it is heat-treated, promptly adopt the method for spheroidizing, quenching and lonneal that it is heat-treated; 4. grinding-shaping is eliminated the accumulated tolerance of former procedures; 5. get product after the surface treatment.
3, the processing method of Plane Ring according to claim 1 is characterized in that it can also be following operation: 1. adopt the powder metallurgy pressed compact spare that sinters; 2. turning; 3. by the conventional heat treatment method of powder metallurgy it is heat-treated, promptly adopt hard-faced method that it is heat-treated; 4. grinding-shaping is eliminated the accumulated tolerance of former procedures; 5. get product after the surface treatment.
4,, it is characterized in that the 4. middle grinding of above-mentioned operation is a diamond wheel grinding according to the processing method of claim 1 or 2 or 3 described Plane Ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012210 CN1563531A (en) | 2004-03-29 | 2004-03-29 | Method for fabricating flange ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012210 CN1563531A (en) | 2004-03-29 | 2004-03-29 | Method for fabricating flange ring |
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| CN1563531A true CN1563531A (en) | 2005-01-12 |
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| CN 200410012210 Pending CN1563531A (en) | 2004-03-29 | 2004-03-29 | Method for fabricating flange ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239443B (en) * | 2007-02-09 | 2010-08-25 | 周瑞生 | High-efficiency processing grinding technique of high-hardness high-precision metal parts inner hole outer circularity |
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2004
- 2004-03-29 CN CN 200410012210 patent/CN1563531A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239443B (en) * | 2007-02-09 | 2010-08-25 | 周瑞生 | High-efficiency processing grinding technique of high-hardness high-precision metal parts inner hole outer circularity |
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