CN105458941B - Metal works shaping methods - Google Patents
Metal works shaping methods Download PDFInfo
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- CN105458941B CN105458941B CN201510752131.XA CN201510752131A CN105458941B CN 105458941 B CN105458941 B CN 105458941B CN 201510752131 A CN201510752131 A CN 201510752131A CN 105458941 B CN105458941 B CN 105458941B
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- metal works
- blasting treatment
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- flatness
- blasting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
Abstract
A kind of metal works shaping methods, including treat the surface progress blasting treatment at least twice of the metal works of shaping.Above-mentioned metal works shaping methods, by blasting treatment twice, the flatness of metal works can be effectively improved, surface of workpiece flatness is improved, defective products is converted to non-defective unit, reduce the scrappage of product；And above-mentioned metal works shaping methods, it is easy to operate, and efficiency high.
Description
Technical field
The present invention relates to field of surface treatment, more particularly to a kind of metal works shaping methods.
Background technology
At present, existing handset shell is formed using plastic production.Plastic handset shell wears no resistance, and uses one
Cut occurs after the section time or even the situation such as fade.Therefore, existing middle and high end mobile phone begins to use metal shell, and mobile phone makes
Not only there is exquisite outward appearance with metal-back, and there is fine and smooth feel, wear-resisting, shatter-resistant, anticorrosive, thus again by
Consumer's likes.
After metal works processing, for example, metal-back to the flatness of surface of workpiece, it is necessary to be detected and to plane
Spend the workpiece not in the range of preset plane degree and carry out shaping.Traditional shaping methods are to utilize amesdial artificial detection workpiece table
The flatness in face, metal works flatness is judged for acceptance or rejection according to testing result, then by off-grade metal workpiece
Using manually pulling shaping, but this method influence factor is more, less efficient, and easily causes work after repeatedly pulling
Part is scrapped.
The content of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of metal works shaping methods, metal work can be effectively improved
The flatness of part, and efficiency is higher.
A kind of metal works shaping methods, including treat the surfaces of the metal works of shaping and carry out at least twice at sandblasting
Reason.
In one of the embodiments, the condition of the blasting treatment is：Air pressure is 2kg~2.6kgf/cm2, and walking speed is
1.5-2m/min, wobble frequency are 40~45Hz.
In one of the embodiments, the condition of the blasting treatment is：Air pressure is 2.6kgf/cm2, walking speed be equivalent to
1.5m/min, wobble frequency 45Hz.
In one of the embodiments, before the blasting treatment, in addition to step：Using plane monitoring-network equipment to metal
Workpiece carries out flatness measure, filters out metal works of the flatness more than 0.3mm as the metal works for treating shaping.
In one of the embodiments, also include carrying out cleaning treatment to metal works after the blasting treatment.
In one of the embodiments, the number of the blasting treatment is twice, and the blasting treatment uses for the first time
Sand grains particle diameter be more than the sand grains particle diameter that second blasting treatment uses.
In one of the embodiments, the sand grains particle diameter that the blasting treatment uses for the first time is 205 mesh.
In one of the embodiments, after the blasting treatment, in addition to flatness is carried out to metal works after sandblasting
Measure, filter out metal works of the flatness more than 0.25mm and re-start the blasting treatment.
In one of the embodiments, the metal works are Al-alloy parts.
In one of the embodiments, the sand grains that the blasting treatment uses is zircon sand.
Above-mentioned metal works shaping methods, by blasting treatment twice, the flatness of metal works can be effectively improved, is carried
High metal workpiece surface flatness, makes defective products be converted to non-defective unit, reduces the scrappage of product；And above-mentioned metal works shaping side
Method, it is easy to operate, and efficiency high.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below to the specific reality of the present invention
The mode of applying is described in detail.Many details are elaborated in the following description in order to fully understand the present invention.But
The invention can be embodied in many other ways as described herein, and those skilled in the art can be without prejudice to this hair
Similar improvement is done in the case of bright intension, therefore the present invention is not limited by following public specific embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
The present invention provides a kind of metal works shaping methods, including treats the surface progress at least two of the metal works of shaping
Secondary blasting treatment.Sandblasting is to use compressed air as power, to form high velocity spray beam by material spray (pomegranate stone sand, copper ore, stone
Sand, diamond dust, iron sand, SEMEN AMOMI LONGILIGULA) need workpiece surface to be processed is ejected at a high speed.Above-mentioned metal works shaping methods, profit
With blasting craft, to improve the flatness of surface of workpiece, so as to reduce the fraction defective of metal works.
For example, a kind of metal works shaping methods, it comprises the following steps：
S101, flatness measure carried out to metal works using plane monitoring-network equipment, filter out flatness more than 0.3mm
Metal works are to treat orthopaedic metal workpiece.
Specifically, the flatness of metal works is determined using amesdial, if the maximum of the flatness of metal works is less than
0.3mm, then judge not needing shaping, if the maximum of the flatness of metal works is more than or equal to 0.3mm, judge that needs are whole
Shape.In the present embodiment, metal works are Al-alloy parts, for example, mobile phone metal rear shell etc..
It is, of course, also possible to flatness measure is carried out using plane monitoring-network equipment, for example, determining metal work using laser technology
The flatness of part.
It should be noted that it is the known skill of those skilled in the art using plane monitoring-network measuring apparatus metal works flatness
Art, it will not be repeated here.
S102, the surface for the metal works for treating shaping carry out blasting treatment at least twice.
Specifically, sandblasting environment is as follows：Air pressure is set as 2kg~2.6kgf/cm2, walking speed be 1.5-2m/min (equivalent to
15~20Hz of motor rotation frequency), wobble frequency is 40~45Hz.Further, the sandblasting environment is：Set air pressure as
2.6kgf/cm2, walking speed is 1.5m/min (equivalent to motor rotation frequency 15Hz), wobble frequency 45Hz.Need what is illustrated
It is air pressure described in this case, is compressed air pressure, by controlling compressed air pressure, surface of workpiece is ejected into regulation
Sand grains to the pressure of surface of workpiece.Wobble frequency described in this case, i.e. the wobble frequency of shower nozzle, be to be sprayed in the unit time
Head is completed swinging 45 ° of numbers for returning to original position to the left and right perpendicular to the position of metal works, wobble frequency is controlled, to adjust
The uniformity of sandblasting is saved, reaches the purpose of comprehensive sandblasting.Walking speed described in this case is transfer rate, represents metal work in the unit interval
The distance of part movement.The blasting treatment is carried out in sand-blasting machine.
Further, the distance of the nozzle of sand-blasting machine and metal works is 50~150mm, and for example, the nozzle of sand-blasting machine with
The distance of metal works is 60~120mm, and and for example, the nozzle of sand-blasting machine and the distance of metal works are 80~100mm, to improve
The uniformity of blasting treatment.
In order to improve the flatness of metal works as much as possible, for example, the number of blasting treatment is twice, and first time institute
The sand grains particle diameter for stating blasting treatment use is more than the sand grains particle diameter that second of blasting treatment uses.That is, thicker sand is first used
Grain carries out sandblasting, then carries out sandblasting with thinner sand grains, after compared with coarse sand granule, the larger position of flatness is improved,
Then utilize improves the overall flatness of workpiece compared with fine sand, so, advantageously reduces the flatness of metal works.And for example, two
The secondary blasting treatment, the parameter setting of sand-blasting machine are different.Specifically, the blasting treatment, sandblasting environment are as follows for the first time：If
It is 2.4kg~2.6kgf/cm to determine air pressure2, walking speed is 1.5-1.8m/min (equivalent to 15~18Hz of motor speed), wobble frequency
For 40~42Hz.Second of blasting treatment, sandblasting environment are as follows：Air pressure is set as 2.0kg~2.4kgf/cm2, walking speed
1.8-2m/min (equivalent to 18~20Hz of motor speed), wobble frequency are 42~45Hz.
Specifically, the sand grains that the blasting treatment uses is zircon sand, for example, the zircon sand is spheroid, it has roundness
Good, the advantages that surface is smooth, easy cleaning.The zircon sand particle diameter that the blasting treatment for the first time uses is 205 mesh, second of spray
The zircon sand particle diameter that sand processing uses is 220 mesh.
Certainly, the sand grains of the blasting treatment is not limited thereto, and in other embodiments, the blasting treatment can be with
Using sand grains such as white fused alumina, ceramics, diamond dust.
S103, cleaning treatment is carried out to the metal works after sandblasting, to remove surface of workpiece residual sand grains.
For example, blasting treatment is used to remove surface of workpiece residual sand grains.Specifically, sprayed using compared with fine sand
Sand processing is to remove surface of workpiece residual sand grains, using destroying the larger sand that remains in surface of workpiece compared with fine sand
Grain, it is easy to operate, and treatment effeciency is higher.For example, the sand grains particle diameter that cleaning treatment uses is 240~320 mesh.
It is, of course, also possible to the sand grains for being remained surface of workpiece using hairbrush is removed.It should be noted that blasting treatment
Sand grains afterwards can recycle and reuse, and to reduce cost, reduce pollution.For example, processing is first blowed：Blown with blower fan
Wind, then carry out hairbrush processing：The sand grains for being remained surface of workpiece with hairbrush removes.And for example, at blowing processing and hairbrush
During reason, vibrations processing is carried out to metal works.For example, carrying out blasting treatment in desanding chamber, blowing processing and hair are then done
Brush processing；Then, also in the underlying collection sand grains of desanding chamber, with recycling.
S104, the metal works after cleaning are subjected to flatness measure, the maximum for filtering out flatness is more than 0.25mm
Metal works re-start blasting treatment.
For example, in S104, the metal works after cleaning are subjected to flatness measure, the maximum for filtering out flatness is more than
0.25mm metal works, continue executing with S102.
Above-mentioned metal works shaping methods, by blasting treatment twice, the flatness of metal works can be effectively improved, is carried
High metal workpiece surface flatness, makes defective products be converted to non-defective unit, reduces the scrappage of product；And above-mentioned metal works shaping side
Method, it is easy to operate, and efficiency high.
With reference to embodiment, the present invention is described in further detail, in order to which those skilled in the art fill
The sub-argument solution present invention.
Embodiment 1
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.0kgf/cm2, walking speed be 1.5m/min (equivalent to
Motor speed 15Hz), wobble frequency 45Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal work after sandblasting
After part carries out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 1.
The metal works shaping anterior-posterior plane degree maximum of table 1
Embodiment 2
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.0kgf/cm2, walking speed is 2m/min (equivalent to electricity
Machine rotating speed 20Hz), wobble frequency 45Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal works after sandblasting
After carrying out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 2.
The metal works shaping anterior-posterior plane degree maximum of table 2
Embodiment 3
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.0kgf/cm2, walking speed be 2m/min (equivalent to
Motor speed 20Hz), wobble frequency 40Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal work after sandblasting
After part carries out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 3.
The metal works shaping anterior-posterior plane degree maximum of table 3
Embodiment 4
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.6kgf/cm2, walking speed be 1.5m/min (equivalent to
Motor speed 15Hz), wobble frequency 45Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal work after sandblasting
After part carries out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 4.
The metal works shaping anterior-posterior plane degree maximum of table 4
Embodiment 5
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.6kgf/cm2, walking speed is 2m/min (equivalent to electricity
Machine rotating speed 20Hz), wobble frequency 45Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal works after sandblasting
After carrying out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 5.
The metal works shaping anterior-posterior plane degree maximum of table 5
Embodiment 6
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, blasting treatment twice is carried out, the parameter of sand-blasting machine is arranged to：Air pressure is 2.6kgf/cm2, walking speed be 1.5m/min (equivalent to
Motor speed 15Hz), wobble frequency 40Hz, the sand grains that blasting treatment uses for 205 mesh zircon sand.By the metal work after sandblasting
After part carries out cleaning treatment, flatness detection is carried out to metal works.Three are randomly selected, correction data is obtained and is shown in Table 6.
The metal works shaping anterior-posterior plane degree maximum of table 6
Embodiment 7
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.4kgf/cm2, walking speed 1.5m/
Min (equivalent to motor speed 15Hz), wobble frequency 40Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.0kgf/cm2, walking speed is 1.8m/min (equivalent to motor speed 18Hz), wobble frequency 45Hz.At second of sandblasting
Manage the zircon sand of the sand grains that uses for 220 mesh.After metal works after sandblasting are carried out into cleaning treatment, plane is carried out to metal works
Degree detection.Three are randomly selected, correction data is obtained and is shown in Table 7.
The metal works shaping anterior-posterior plane degree maximum of table 7
Embodiment 8
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.5kgf/cm2, walking speed 1.6m/
Min (equivalent to motor speed 16Hz), wobble frequency 42Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.0kgf/cm2, walking speed is 1.8m/min (equivalent to motor speed 18Hz), wobble frequency 45Hz.At second of sandblasting
Manage the zircon sand of the sand grains that uses for 220 mesh.After metal works after sandblasting are carried out into cleaning treatment, plane is carried out to metal works
Degree detection.Three are randomly selected, correction data is obtained and is shown in Table 8.
The metal works shaping anterior-posterior plane degree maximum of table 8
Embodiment 9
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.6kgf/cm2, walking speed 1.5m/
Min (equivalent to motor speed 15Hz), wobble frequency 42Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.0kgf/cm2, walking speed is 1.8m/min (equivalent to motor speed 18Hz), wobble frequency 42Hz.At second of sandblasting
Manage the zircon sand of the sand grains that uses for 220 mesh.After metal works after sandblasting are carried out into cleaning treatment, plane is carried out to metal works
Degree detection.Three are randomly selected, correction data is obtained and is shown in Table 9.
The metal works shaping anterior-posterior plane degree maximum of table 9
Embodiment 10
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.6kgf/cm2, walking speed 1.5m/
Min (equivalent to motor speed 15Hz), wobble frequency 42Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.2kgf/cm2, walking speed is 1.8m/min (equivalent to motor speed 18Hz), wobble frequency 45Hz.At second of sandblasting
Manage the zircon sand of the sand grains that uses for 220 mesh.Metal works after sandblasting are subjected to cleaning treatment, flatness is carried out to metal works
Detection.Three are randomly selected, correction data is obtained and is shown in Table 10.
The metal works shaping anterior-posterior plane degree maximum of table 10
Embodiment 11
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.4kgf/cm2, walking speed 1.6m/
Min (equivalent to motor speed 16Hz), wobble frequency 42Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.0kgf/cm2, walking speed is 2m/min (equivalent to motor speed 20Hz), wobble frequency 45Hz.Second of blasting treatment
The sand grains used for 220 mesh zircon sand.Metal works after sandblasting are subjected to cleaning treatment, flatness inspection is carried out to metal works
Survey.Three are randomly selected, correction data is obtained and is shown in Table 11.
The metal works shaping anterior-posterior plane degree maximum of table 11
Embodiment 12
Flatness measure is carried out to metal works, metal works of the flatness maximum more than 0.3mm are put into sand-blasting machine
It is interior, first time blasting treatment is carried out, the parameter of the first blasting treatment is arranged to：Air pressure is 2.6kgf/cm2, walking speed 1.6m/
Min (equivalent to motor speed 16Hz), wobble frequency 42Hz.The sand grains that first time blasting treatment uses for 205 mesh zircon sand.
Metal works after first time blasting treatment are subjected to second of blasting treatment, the parameter of second of blasting treatment is arranged to：Gas
Press as 2.2kgf/cm2, walking speed is 1.8m/min (equivalent to motor speed 18Hz), wobble frequency 42Hz.At second of sandblasting
Manage the zircon sand of the sand grains that uses for 220 mesh.Metal works after sandblasting are subjected to cleaning treatment, flatness is carried out to metal works
Detection.Three are randomly selected, correction data is obtained and is shown in Table 12.
The metal works shaping anterior-posterior plane degree maximum of table 12
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of metal works shaping methods, it is characterised in that the surface of the metal works including treating shaping carries out at least two
Secondary blasting treatment；
Before the blasting treatment, in addition to step：Flatness measure, screening are carried out to metal works using plane monitoring-network equipment
Go out metal works of the flatness more than 0.3mm for the metal works for treating shaping；
The number of the blasting treatment for twice, and the sand grains particle diameter that the blasting treatment uses for the first time be more than second it is described
The sand grains particle diameter that blasting treatment uses；The blasting treatment twice, the parameter setting of sand-blasting machine are different；For the first time at the sandblasting
Reason, sandblasting environment are as follows：Air pressure is set as 2.4kgf/cm2~2.6kgf/cm2, walking speed is 1.5m/min~1.8m/min, is waved
Frequency is 40Hz~42Hz；Second of blasting treatment, sandblasting environment are as follows：Air pressure is set as 2.0kgf/cm2~
2.4kgf/cm2, walking speed 1.8m/min~2m/min, wobble frequency is 42Hz~45Hz；The blasting treatment uses for the first time
Zircon sand particle diameter is 205 mesh, and the zircon sand particle diameter that second of blasting treatment uses is 220 mesh.
2. metal works shaping methods according to claim 1, it is characterised in that also include after the blasting treatment to gold
Metal work-pieces carry out cleaning treatment.
3. metal works shaping methods according to claim 1, it is characterised in that after the blasting treatment, in addition to
Flatness measure is carried out to metal works after sandblasting, metal works of the flatness more than 0.25mm is filtered out and re-starts the spray
Sand processing.
4. metal works shaping methods according to claim 1, it is characterised in that the metal works are Al-alloy parts.
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| CN105908203A (en) * | 2016-05-31 | 2016-08-31 | 刘洪建 | Surface treatment process for aluminum alloy |
| CN106541333B (en) * | 2016-10-31 | 2018-08-03 | 中国航空工业集团公司北京航空材料研究院 | The straightening method deformed after one kind " H " shape cantilever design shot-peening |
| CN109390115B (en) * | 2018-10-19 | 2020-07-31 | 平高集团有限公司 | Surface treatment method for metal insert of resin-cast insulator, resin-cast insulator and preparation method thereof |
| CN109571273B (en) * | 2018-12-29 | 2021-07-06 | 苏州松翔电通科技有限公司 | Sand blasting process for reducing flatness and roughness of zinc alloy surface of optical module |
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