CN106917018A - A kind of shower house extraordinary aluminium section bar and production technology - Google Patents
A kind of shower house extraordinary aluminium section bar and production technology Download PDFInfo
- Publication number
- CN106917018A CN106917018A CN201710215678.5A CN201710215678A CN106917018A CN 106917018 A CN106917018 A CN 106917018A CN 201710215678 A CN201710215678 A CN 201710215678A CN 106917018 A CN106917018 A CN 106917018A
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- temperature
- production technology
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- section bar
- chemical polishing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
- C23F3/03—Light metals with acidic solutions
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/32—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature with provision for adjustment of the effect of the auxiliary heating device, e.g. a function of time
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The application proposes a kind of shower house extraordinary aluminium section bar and its production technology, and the aluminium section bar composition includes：Silicon Si0.3 0.65%, iron Fe0.15%, copper Cu0.2 0.25%, manganese Mn0.05%, magnesium Mg0.70 0.95%, zinc Zn0.05%, titanium Ti0.05%, balance of aluminium Al, production technology includes founding, extruding, pre-treatment, mechanical polishing, chemical polishing, sealing of hole step step, temperature is controlled by chemical polishing process, so that bath temperature reaches preferred temperature, by adding additive in chemical polishing bath, tobacco can be avoided from producing.The application carries out On-line Control to chemical polishing bath temperature value, is capable of the temperature of precise control chemical polishing bath, realizes On-line Control, and tobacco can be avoided to produce, it is possible to increase production efficiency, reduces cost, lifts the corrosion resistance of shower house aluminium section bar.
Description
Technical field
The present invention relates to a kind of shower house extraordinary aluminium section bar and production technology, aluminium section bar production field is applied to.
Background technology
Mechanical polishing and chemical polishing are the common methods for lifting Al-alloy products apparent brightness.Polishing minute surface aluminium is one
Conventional high-grade decoration aluminium section bar is planted, is especially widely used in shower house, for shower house aluminium section bar, often be faced with
Problem is corrosion problems, due to easily being polluted by the liquid such as shampoo, bath foam, water stain in use, can be gone out
Existing corrosion phenomenon, influences attractive in appearance and security, and chemical polishing can be greatly enhanced the corrosion resistance of aluminium section bar.However,
In chemical polishing process, temperature control is extremely important, if temperature is too high, reflects block, and aluminum alloy surface occurs a large amount of corruption
Erosion pit, surface quality severe exacerbation, if temperature is too low, can not produce sufficiently chemical reaction again, influence polishing effect,
Because the temperature of each position in chemical polishing bath is different, existing temperature control detection error than larger, for testing result
The temperature control adjustment accuracy for carrying out also has to be hoisted.Still further aspect, due to the use of nitric acid, the meeting in the presence of high temperature
Substantial amounts of tobacco is produced, environment is polluted, can also produce infringement to the body of workman.
The content of the invention
The present invention, can in view of the shortcomings of the prior art, propose a kind of extraordinary aluminium section bar of shower house and its production technology
The temperature of precise control chemical polishing bath, realizes On-line Control, and tobacco can be avoided to produce, it is possible to increase production efficiency, drop
Low cost, lifts the corrosion resistance of shower house aluminium section bar.
On the one hand the application gives a kind of shower house special type aluminium section bar, and the aluminium section bar composition includes：Silicon Si0.3-
0.65%th, iron Fe0.15%, copper Cu0.2-0.25%, manganese Mn0.05%, magnesium Mg0.70-0.95%, zinc Zn0.05%, titanium
Ti0.05%, balance of aluminium Al.
On the other hand a kind of shower house special type production process of aluminium section, including founding, extruding, pre-treatment, machine are given
Tool polishing, chemical polishing, sealing of hole step, it is characterised in that the chemical polishing tank liquor parameter is nitric acid HNO33.5-6.5%,
Phosphoric acid HPO455.0-62.5%, sulfuric acid HSO420-31%, trivalent aluminium Al3+Ion concentration is 40-50g/l, and density is 1.85-
1.93g/cm3, ammonium polyphosphate APP additive 1-1.5g/L, bath temperature is 135 DEG C -140 DEG C, and the time is 2-3min.
Further, the pre-treatment includes oil removing and alkaline etching step, and the degreasing tank composition includes 100~200g/ of sulfuric acid
L, temperature is room temperature, and the time is 1~3 minute；Alkaline etching groove composition includes 50 ± 5g/L of free alkali, trivalent aluminium Al3+Ion concentration is small
In 90g/L, temperature is 45 ± 5 DEG C, and the time is 1~2 minute.
Further, mould heating-up temperature is 450-520 degree in the pressing steps, and the mould heat time is less than 8 hours, squeezes
Pressure speed is 20-50m/min.
Further, it is 60-90ml/min flow quantity to be polished in the mechanical polishing step, and pressure is 20-25KPa, polishing
Time 30-45min, rotating speed is 50-70r/min.
Further, the sealing of hole step uses middle temperature sealing of hole, middle temperature sealing of hole temperature control at 50-55 DEG C, pH value 5.5~
6.0,1.0~1.4g/L of nickel ion, the middle temperature sealing of hole time are 5-15 minutes.
Further, the method include the chemical polishing process in, using multiple temperature sensors to the chemical polishing
The upper strata of groove, middle level, the temperature of the diverse location of lower floor are sampled, and real-time adjustment is carried out to sampled value, by adjustment after adopt
Sample value is conveyed to central controller, and central controller controls thermostat unit is adjusting temperature so that bath temperature reaches expectation temperature
Degree.
Further, it is described real-time adjustment is carried out to sampled value to include：A, the n measured temperature of acquisition within a t period：
T1、T2、……、Tn；B, ask for period reference value Et=(T1+T2+……+Tn)/n；C, by the n measured temperature：T1、
T2、……、TnWith the reference value EtCompared one by one, and will be with the reference value EtDiffer by more than the measurement of predetermined threshold value e
Value removal；D, to by remaining measured temperature averaged, maximum and minimum value after step c, and use maximum
Subtract minimum and be worth to period temperature width, calculate temperature supplement value Td=period temperature width/n；E, use following formula obtain institute
State the measured temperature of adjustment：Ti=average value-Td*n/2+i*Td。
The application has following technique effect：1, by aluminium section bar composition proportion, the surface of aluminium section bar can be greatly improved
Finish, improves corrosion resistance, improve production efficiency, reduces cost；2, added by adding ammonium polyphosphate APP in three acid tank liquid
Plus agent, tobacco can be avoided to produce, workman's production safety is ensured, improve environment；3, On-line Control is carried out to three acid tank temperature values,
The big problem of traditional detection temperature value error is improved, accurate measurement is realized, three acid tanks each position temperature can be prevented effectively from not
Quality problems caused by, improve yield rate, are conducive to improving the performance of shower house aluminium section bar.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention
Specific embodiment
Shower house of the invention extraordinary aluminium section bar, including following chemical composition (weight portion)：Silicon Si0.3-0.65%,
Iron Fe0.15%, copper Cu0.2-0.25%, manganese Mn0.05%, magnesium Mg0.70-0.95%, zinc Zn0.05%, titanium Ti0.05%,
Balance of aluminium Al.
Production technology of the invention is as follows：Including founding, extruding, pre-treatment, mechanical polishing, chemical polishing, sealing of hole step.
Extrusion process is to ensure that sequent surface processes a key of quality, mould heating temperature in pressing steps of the invention
It is 450-520 degree to spend, and the mould heat time is less than 8 hours, and extrusion speed is 20-50m/min.
Pre-treatment includes oil removing and alkaline etching step, and oil removing purpose is to degrease and soak surface, is to ensure uniform alkali cleaning
Key, and the pollution to alkali wash water can be mitigated, degreasing tank composition of the invention includes 100~200g/L of sulfuric acid, and temperature is room
Temperature, the time is 1~3 minute, being capable of effectively oil removing.The purpose of alkali cleaning is removal aluminium material surface natural oxide film and defect, is entered again
One step removes stain, and alkaline etching groove composition of the present invention includes 50 ± 5g/L of free alkali, trivalent aluminium Al3+Ion concentration is less than 90g/L, temperature
It is 45 ± 5 DEG C to spend, and the time is 1~2 minute, due to Al in alkali wash water3+After ion is more than 30g/L, it may occur that precipitation and caking, go
Except caking is a heavy manual labor, influence production again, the present invention is reclaimed outside groove to deposit clumps, improves production
Efficiency.
Mechanical polishing is to remove to be polished the raised of surface and obtain smooth surface by cutting and material surface Plastic Forming,
It is 60-90ml/min that flow quantity is polished in mechanical polishing step of the present invention, and pressure is 20-25KPa, polishing time 30-45min,
Rotating speed is 50-70r/min, by process parameter control, can effectively remove surface and oil contaminant and burr etc., and avoid crystal boundary
The defect such as corrosion or stress-corrosion cracking.
Chemical polishing step can reduce the roughness of aluminium material surface so that the corrosion resistance enhancing of metal surface, more suitable
For shower house, however, when using three acid polishing, substantial amounts of oxides of nitrogen gas i.e. yellow smog can be produced, to people
Body has larger toxicity, and the present invention is greatly reduced the generation of tobacco using additive, can ensure the safety of workman, of the inventionization
Optical polishing bath parameters are nitric acid HNO33.5-6.5%, phosphoric acid HPO455.0-62.5%, sulfuric acid HSO420-31%, trivalent aluminium
Al3+Ion concentration is 40-50g/l, and density is 1.85-1.93g/cm3, ammonium polyphosphate APP additive 1-1.5g/L, bath temperature is
135 DEG C -140 DEG C, the time is 2-3min.
For the temperature control of chemical polishing bath, tank liquor is heated using resistance wire generally, due to local temperature effect
Should, the temperature at each position is typically uneven in groove, and prior art is all direct detection tank liquor temperature, according to detected value come
Curtage to resistance wire is adjusted, then realizes the adjustment of temperature, and this detection error is very big, final reality
Existing temperature control is also inaccurate.As shown in figure 1, the present invention is respectively provided with two by the upper, middle and lower layer in three acid tanks
Individual temperature sensor collecting temperature numerical value, and be uploaded to sampling adjustment unit, carries out real-time adjustment to sampled value, a, in a t
N measured temperature is obtained in period：T1、T2、……、Tn；B, ask for period reference value Et=(T1+T2+……+Tn)/n；c、
By the n measured temperature：T1、T2、……、TnWith the reference value EtCompared one by one, and will be with the reference value Et
Differ by more than the measured value removal of predetermined threshold value e；D, to by remaining measured temperature averaged, maximum after step c
It is worth and minimum value, and minimum is subtracted using maximum and be worth to period temperature width, calculates temperature supplement value Td=period temperature
Width/n；E, the measured temperature that the adjustment is obtained using following formula：Ti=average value-Td*n/2+i*Td.And then by adjust
Measured temperature TiIt is conveyed to central controller, central controller controls thermostat unit is adjusting temperature so that bath temperature reaches
To preferred temperature.
The sealing of hole step uses middle temperature sealing of hole, and middle temperature sealing of hole temperature control is in 50-55 DEG C, pH value 5.5~6.0, nickel
1.0~1.4g/L of ion, the middle temperature sealing of hole time is 5-15 minutes.
State modulator and aluminium composition proportion that the present invention passes through each processing step, can produce high performance suitable
For the extraordinary aluminium section bar of shower house, the temperature of precise control chemical polishing bath of the present invention realizes On-line Control, and can avoid
Tobacco is produced, it is possible to increase production efficiency, reduces cost, the corrosion resistance of shower house aluminium section bar is lifted, with considerable production
And economic benefit.
As described above, the present invention can be realized preferably.For a person skilled in the art, religion of the invention
Lead, design the electro-hydraulic servo bearing of multi-form and do not need performing creative labour.Principle of the invention and essence are not being departed from
These embodiments be changed in the case of god, changed, replaced, integrated and modification is still fallen within protection scope of the present invention.
Claims (8)
1. a kind of shower house is with extraordinary aluminium section bar, it is characterised in that the aluminium section bar composition includes：Silicon Si0.3-0.65%, iron
Fe0.15%, copper Cu0.2-0.25%, manganese Mn0.05%, magnesium Mg0.70-0.95%, zinc Zn0.05%, titanium Ti0.05%, surplus
It is aluminium Al.
2. a kind of shower house as claimed in claim 1 production technology of extraordinary aluminium section bar, including founding, extruding, pre-treatment,
Mechanical polishing, chemical polishing, sealing of hole step, it is characterised in that the chemical polishing tank liquor parameter is nitric acid HNO33.5-
6.5%, phosphoric acid HPO455.0-62.5%, sulfuric acid HSO420-31%, trivalent aluminium Al3+Ion concentration is 40-50g/l, and density is
1.85-1.93g/cm3, ammonium polyphosphate APP additive 1-1.5g/L, bath temperature is 135 DEG C -140 DEG C, and the time is 2-3min.
3. production technology as claimed in claim 2, it is characterised in that the pre-treatment includes oil removing and alkaline etching step, described
Degreasing tank composition includes 100~200g/L of sulfuric acid, and temperature is room temperature, and the time is 1~3 minute；Alkaline etching groove composition includes free alkali
50 ± 5g/L, trivalent aluminium Al3+Ion concentration is less than 90g/L, and temperature is 45 ± 5 DEG C, and the time is 1~2 minute.
4. production technology as claimed in claim 2, it is characterised in that mould heating-up temperature is 450- in the pressing steps
520 degree, the mould heat time is less than 8 hours, and extrusion speed is 20-50m/min.
5. production technology as claimed in claim 2, it is characterised in that it is 60- that flow quantity is polished in the mechanical polishing step
90ml/min, pressure is 20-25KPa, and polishing time 30-45min, rotating speed is 50-70r/min.
6. production technology as claimed in claim 2, it is characterised in that the sealing of hole step uses middle temperature sealing of hole, middle temperature sealing of hole
Temperature control at 50-55 DEG C, pH value 5.5~6.0,1.0~1.4g/L of nickel ion, the middle temperature sealing of hole time is 5-15 minutes.
7. production technology as claimed in claim 2, it is characterised in that the method includes in the chemical polishing operation process,
The temperature of the upper strata of the chemical polishing bath, middle level, the diverse location of lower floor is sampled using multiple temperature sensors, it is right
Sampled value carries out real-time adjustment, and the sampled value after adjustment is conveyed into central controller, central controller controls temperature adjustment list
Unit is adjusting temperature so that bath temperature reaches preferred temperature.
8. production technology as claimed in claim 7, it is characterised in that described real-time adjustment is carried out to sampled value to include：A,
N measured temperature is obtained in one t period：T1、T2、……、Tn；B, ask for period reference value Et=(T1+T2+……+Tn)/
n；C, by the n measured temperature：T1、T2、……、TnWith the reference value EtCompared one by one, and will be with the reference
Value EtDiffer by more than the measured value removal of predetermined threshold value e；D, to by remaining measured temperature averaged after step c,
Maximum and minimum value, and subtract minimum using maximum and be worth to period temperature width, calculate temperature supplement value Td=the period
Temperature width/n；E, the measured temperature that the adjustment is obtained using following formula：Ti=average value-Td*n/2+i*Td。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215678.5A CN106917018A (en) | 2017-04-04 | 2017-04-04 | A kind of shower house extraordinary aluminium section bar and production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215678.5A CN106917018A (en) | 2017-04-04 | 2017-04-04 | A kind of shower house extraordinary aluminium section bar and production technology |
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| Publication Number | Publication Date |
|---|---|
| CN106917018A true CN106917018A (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710215678.5A Pending CN106917018A (en) | 2017-04-04 | 2017-04-04 | A kind of shower house extraordinary aluminium section bar and production technology |
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| CN (1) | CN106917018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996533A (en) * | 2020-07-23 | 2020-11-27 | 黄珊珉 | Environment-friendly aluminum alloy chemical polishing solution and preparation method and polishing method thereof |
| CN116121576A (en) * | 2022-12-27 | 2023-05-16 | 上饶市鸿基铝业有限公司 | Special aluminum profile for shower room and production process thereof |
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| CN103643235A (en) * | 2013-11-29 | 2014-03-19 | 台澳铝业（台山）有限公司 | High-brightness aluminum-alloy polishing section and production process thereof |
| CN205275772U (en) * | 2016-01-06 | 2016-06-01 | 上海脉诺金属表面处理技术有限公司 | Use electrolytic buffing equipment of without phosphorus electrolytic buffing liquid |
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2017
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| CN102796926A (en) * | 2012-08-30 | 2012-11-28 | 明达铝业科技(太仓)有限公司 | High-strength aluminum alloy round pipe and manufacturing method thereof |
| CN103643235A (en) * | 2013-11-29 | 2014-03-19 | 台澳铝业（台山）有限公司 | High-brightness aluminum-alloy polishing section and production process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996533A (en) * | 2020-07-23 | 2020-11-27 | 黄珊珉 | Environment-friendly aluminum alloy chemical polishing solution and preparation method and polishing method thereof |
| CN116121576A (en) * | 2022-12-27 | 2023-05-16 | 上饶市鸿基铝业有限公司 | Special aluminum profile for shower room and production process thereof |
| CN116121576B (en) * | 2022-12-27 | 2024-07-05 | 上饶市鸿基卫浴股份有限公司 | Special aluminum profile for shower room and production process thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 334000 Jiangxi Province, Shangrao city Yiyang County Industrial Park Nanyan District Applicant after: Shangrao Hongji Aluminium Industry Co., Ltd. Address before: 334000 Jiangxi city of Shangrao province Ge Yang County Industrial Park Nanyan District Applicant before: Shangrao Hongji Aluminium Industry Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Mi Hongguo Inventor after: Mi Cancan Inventor after: Zhou Jinshui Inventor before: Mi Cancan Inventor before: Zhou Jinshui Inventor before: Peng Fei |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |