CN105755260A - Heat treatment process of circular saw blade - Google Patents
Heat treatment process of circular saw blade Download PDFInfo
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- CN105755260A CN105755260A CN201410761394.2A CN201410761394A CN105755260A CN 105755260 A CN105755260 A CN 105755260A CN 201410761394 A CN201410761394 A CN 201410761394A CN 105755260 A CN105755260 A CN 105755260A
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Abstract
The invention discloses a heat treatment process of a circular saw blade. The process comprises the steps of: 1) blanking circular saw blade blank material into round, increasing the diameter by 2mm and increasing the thickness by 2mm according to a specified dimension, using a special tool to put the blank material into a gas oven to perform heating, maintaining no deformation during heating and cooling so as to provide favorable conditions for subsequent procedures; 2) quenching: processing a circular saw blade into a semi-finished product, processing outer circular teeth well, and machining two side planes of the blade to flat: (1) the quenching heating equipment is a gas stove, a special tool is employed to heat the circular saw blade by a method identical to normalizing; (3) the heating temperature is 870DEG C, the thermal insulation time is identical to normalizing; (3) quenching cooling is conducted, vertical quenching is performed after through heating, and the cooling medium is oil; and (4) in terms of selection of quenching oil, in addition to considering cooling characteristics, the oil flash point and viscosity also needs consideration, and the higher the oil consumption is, the greater the viscosity is.
Description
Technical field
The present invention relates to a kind of saw blade Technology for Heating Processing.
Background technology
Saw blade finished size thickness is 2.6 2. 8mm, a diameter of φ 15 700mm.When heat treatment process, unnecessary size is stayed to heat treatment step, by the unnecessary thick 2mm of the size of finished parts, so when heat treatment step, circle is 2. 8 3. 0mm according to sheet gauge, after heat treatment planar mechanical processing in saw blade both sides being polished polishing is finished product, and circular saw blade diameter is motionless, because on saw blade Zhou Yuan being sawtooth (saw tooth).The most very thin workpiece of the most large-scale diameter, technology requirement, saw blade bears bigger impact load and bend loading.The operation carried out with high revolution under sizable load, requires there is good elasticity to saw blade (saw blade).According to these situations, saw blade should have higher toughness after heat treatment under conditions of high elasticity and sufficient intensity.So to go by the composition and heat treatment process that select steel, bring the biggest difficulty to heat treatment step, first have to study Equipment for Heating Processing and technique, it is also contemplated that processing cost.Both reduce processing cost, also the quality of workpiece is reached technology requirement.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of saw blade Technology for Heating Processing, and this heat-treatment technology method is simple, and the saw blade after process is elastic and intensity is relatively good.
For achieving the above object, the invention provides a kind of saw blade Technology for Heating Processing, it is characterized in that, comprise the steps, 1) blanking of saw blade blank material becomes circular, by given size, diameter adds 2mm, thickness adds 2mm, gas stove heats, use specific purpose tool, put in stove and heat, it is maintained in heating and cooling procedure indeformable, to provide advantage to down a few procedure, normalizing temperature is 870 DEG C, temperature retention time is l.Omin/mm, note, calculate according to batch concrete condition, for anti-oxidation and decarburization, scattered Linesless charcoal is placed in the place having space in stove, saw blade is into official written reply and carries out normalizing, come out of the stove air cooling to room temperature after warm.
2) quenching: saw blade is processed into semi-finished product, and outer knuckle-tooth processes, planar mechanical processing in saw blade both sides is smooth:
(1) Quench heating equipment is gas stove, and saw blade uses the heating means that specific purpose tool is identical with normalizing；
(2) heating-up temperature is 870 DEG C, and temperature retention time is identical with normalizing；
(3) quenching cooling, vertically quenches after heat penetration, and cooling medium is oil；
(4) about the selection of quenching oil, in addition to considering cooling characteristics, it is necessary to considering oil flash and viscosity, oil number is the highest, then viscosity is the biggest, and cooling capacity is the lowest, increases oil temperature, can reduce oil viscosity, increases the cooling capacity of oil.This point is different from water, but oil temperature can not be high, the most easily catches fire, causing danger, so oil temperature general control is between 20 80 DEG C, workpiece is quenched after in oil, liquid level can't be exposed, in order to avoid the fluid on high heated work pieces surface burns, viscosity after tempering oil life-time service, can be made to increase, produce bits and reduce the cooling capacity of oil, here it is so-called " aging " phenomenon, oil groove should keep pure, and periodically adds fresh oil, and filters removal of contamination.
The invention has the beneficial effects as follows: this heat-treatment technology method of the present invention is simple, the saw blade after process is elastic and intensity is relatively good.
Detailed description of the invention
Technical scheme disclosed by the invention is a kind of saw blade Technology for Heating Processing, comprise the steps, 1) blanking of saw blade blank material becomes circular, by given size, diameter adds 2mm, thickness adds 2mm, gas stove heats, use specific purpose tool, put in stove and heat, it is maintained in heating and cooling procedure indeformable, to provide advantage to down a few procedure, normalizing temperature is 870 DEG C, temperature retention time is l.Omin/mm, note, calculate according to batch concrete condition, for anti-oxidation and decarburization, scattered Linesless charcoal is placed in the place having space in stove, saw blade is into official written reply and carries out normalizing, come out of the stove air cooling to room temperature after warm.
2) quenching: saw blade is processed into semi-finished product, and outer knuckle-tooth processes, planar mechanical processing in saw blade both sides is smooth: (1) Quench heating equipment is gas stove, and saw blade uses the heating means that specific purpose tool is identical with normalizing；
(2) heating-up temperature is 870 DEG C, and temperature retention time is identical with normalizing；
(3) quenching cooling, vertically quenches after heat penetration, and cooling medium is oil；
(4) about the selection of quenching oil, in addition to considering cooling characteristics, it is necessary to considering oil flash and viscosity, oil number is the highest, then viscosity is the biggest, and cooling capacity is the lowest, increases oil temperature, can reduce oil viscosity, increases the cooling capacity of oil.This point is different from water, but oil temperature can not be high, the most easily catches fire, causing danger, so oil temperature general control is between 20 80 DEG C, workpiece is quenched after in oil, liquid level can't be exposed, in order to avoid the fluid on high heated work pieces surface burns, viscosity after tempering oil life-time service, can be made to increase, produce bits and reduce the cooling capacity of oil, here it is so-called " aging " phenomenon, oil groove should keep pure, and periodically adds fresh oil, and filters removal of contamination.
This heat-treatment technology method of the present invention is simple, and the saw blade after process is elastic and intensity is relatively good.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should be in the protection domain being defined in the patent claims the most on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. a saw blade Technology for Heating Processing, it is characterized in that, comprise the steps, 1) blanking of saw blade blank material becomes circular, by given size, diameter adds 2mm, thickness adds 2mm, gas stove heats, use specific purpose tool, put in stove and heat, it is maintained in heating and cooling procedure indeformable, to provide advantage to down a few procedure, normalizing temperature is 870 DEG C, temperature retention time is l.Omin/mm, note, calculate according to batch concrete condition, for anti-oxidation and decarburization, scattered Linesless charcoal is placed in the place having space in stove, saw blade is into official written reply and carries out normalizing, come out of the stove air cooling to room temperature after warm；
2) quenching: saw blade is processed into semi-finished product, and outer knuckle-tooth processes, planar mechanical processing in saw blade both sides is smooth:
(1) Quench heating equipment is gas stove, and saw blade uses specific purpose tool and normalizing
Identical heating means；
(2) heating-up temperature is 870 DEG C, and temperature retention time is identical with normalizing；
(3) quenching cooling, vertically quenches after heat penetration, and cooling medium is oil；
(4) about the selection of quenching oil, in addition to considering cooling characteristics, it is necessary to considering oil flash and viscosity, oil number is the highest, then viscosity is the biggest, and cooling capacity is the lowest, increases oil temperature, can reduce oil viscosity, increases the cooling capacity of oil；This point is different from water, but oil temperature can not be high, the most easily catches fire, causing danger, so oil temperature general control is between 20 80 DEG C, workpiece is quenched after in oil, liquid level can't be exposed, in order to avoid the fluid on high heated work pieces surface burns, viscosity after tempering oil life-time service, can be made to increase, produce bits and reduce the cooling capacity of oil, here it is so-called " aging " phenomenon, oil groove should keep pure, and periodically adds fresh oil, and filters removal of contamination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761394.2A CN105755260A (en) | 2014-12-13 | 2014-12-13 | Heat treatment process of circular saw blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761394.2A CN105755260A (en) | 2014-12-13 | 2014-12-13 | Heat treatment process of circular saw blade |
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| CN105755260A true CN105755260A (en) | 2016-07-13 |
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| CN201410761394.2A Pending CN105755260A (en) | 2014-12-13 | 2014-12-13 | Heat treatment process of circular saw blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735566A (en) * | 2017-01-14 | 2017-05-31 | 河北小蜜蜂工具集团有限公司 | A kind of diamond disc levelling system and its flattening method |
-
2014
- 2014-12-13 CN CN201410761394.2A patent/CN105755260A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735566A (en) * | 2017-01-14 | 2017-05-31 | 河北小蜜蜂工具集团有限公司 | A kind of diamond disc levelling system and its flattening method |
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Application publication date: 20160713 |