CN108620446A - Mold maintaining method in a kind of production of aluminum section extruder - Google Patents
Mold maintaining method in a kind of production of aluminum section extruder Download PDFInfo
- Publication number
- CN108620446A CN108620446A CN201710165559.3A CN201710165559A CN108620446A CN 108620446 A CN108620446 A CN 108620446A CN 201710165559 A CN201710165559 A CN 201710165559A CN 108620446 A CN108620446 A CN 108620446A
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- CN
- China
- Prior art keywords
- mold
- maintaining method
- die
- temperature
- aluminum section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/06—Cleaning dies, ducts, containers or mandrels
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Mold maintaining method in a kind of aluminum section extruder production of present invention offer, includes the following steps：A1, it first determines whether that the type of mold is to have produced and used mold or new die, different maintaining methods is then selected according to the type of different molds；A2, new die maintaining method include：Preparation before nitridation, including：Removing surface, cleaning, drying and polishing；A3, the maintaining method for having produced and used mold include：Mold frames up, alkali slot heats, clear water rinsing.Mold is one of three big necessary factors in Die Casting, it is directly related to the cost of die casting, simple improving for die matrix material of dependence is very limited, it is also uneconomic, good safeguard of mold is normally to produce the powerful guarantee being smoothed out, be conducive to improve life of product, save cost.In order to realize this effect, it is necessary to design mold maintaining method in a kind of production of aluminum section extruder.
Description
Technical field
The present invention relates to aluminium alloy extrusions extruder technical fields, more specifically, more particularly to a kind of Extrusion Process of Aluminum Alloy Profile
Mold maintaining method in machine production.
Background technology
Mold is one of three big necessary factors in Die Casting, is directly related to the cost of die casting, simple to rely on mold base
Improving for body material is very limited and uneconomic, and the good maintenance of mold is that normal production is smoothed out
Powerful guarantee, be conducive to improve life of product, save cost.In order to realize this effect, it is necessary to design a kind of aluminium section bar
Mold maintaining method in extruder production.
Invention content
Mold maintaining method in being produced the object of the present invention is to provide a kind of aluminum section extruder, the processed mould of this method
Abrasion resistance properties, corrosion resistance, friction coefficient, the fatigue behaviour on tool surface must greatly improve, the technical side that the present invention uses
Case is：
Mold maintaining method in a kind of production of aluminum section extruder, includes the following steps,
A1, first determine whether that the type of mold is to have produced and used mold or new die, then according to the kind of different molds
Class selects different maintaining methods；
A2, new die maintaining method include：
Preparation before nitridation, preparation includes before the nitridation：Removing surface, cleaning, drying and polishing；
Nitrogen treatment process, the nitrogen treatment include：
200 DEG C are warming up to, ammonia is given；
400 DEG C are warming up to, nitrogen and carbon dioxide are given；
550 DEG C are warming up to, starts to keep the temperature, keeps the temperature 8-12 hours；
450 DEG C are cooled to, nitrogen and carbon dioxide are closed；
230 DEG C are cooled to, ammonia is closed；
180 DEG C are cooled to, can be come out of the stove；
40 DEG C are cooled to, can be assembled；
A3, the maintaining method for having produced and used mold include：
Mold frames up, and mold is framed up by specification size, divergent die, plane mould etc. and is set；
Alkali slot heats, and mold frame is put into after alkali slot and starts to heat to alkali slot, alkali slot water temperature is made to be maintained at 50 DEG C -70 DEG C
Between, the time is between 40-60 minutes；
Clear water rinses, after the reaction of mold frame taking-up rinsed with clear water, the temperature of the clear water is controlled at 30-80 DEG C；
For band aluminum die, die sinking rear mold wall has residual aluminium to be put into alkali slot to boil again primary, need 20-40 minutes；
Preferably, the process of the removing surface includes that mold hook is put into 25 ± 5% hydrochloric acid troughs, impregnates 15-20 points
Clock removes die surface rust, alkali dirt, dirt, ensures nitriding result.
Preferably, the nitrogen treatment process carries out in nitriding furnace, and the nitriding furnace course of work needs 20-24 hours,
Middle heating 3-3.5 hours, nitriding furnace, which starts to cool down, after heat preservation 11-12 hours needs 8-9 hours, nitrogenizes furnace gas resolution ratio
(ammonia decomposition) is 45-55.
Preferably, in the clear water rinse cycle, the temperature of the clear water changes with the variation in season, specifically, May 1
Day --- September 30 days, at 40 ± 10 DEG C, October 1 --- April 30, water temperature is controlled at 70 ± 10 DEG C for water temperature control.
Specific implementation mode
In order to better understand the present invention, the present invention is further described with reference to specific embodiment.
Mold maintaining method in a kind of aluminum section extruder production of present invention offer, includes the following steps：
The first step judges that the type of mold is to have produced and used mold or new die, then according to the kind of different molds
Class selects different maintaining methods.
The maintaining method of second step, new die includes：
Mold is hooked before nitridation and is put into 25 ± 5% hydrochloric acid troughs, impregnates and removes within 15-20 minutes die surface rust, alkali dirt, dirt
Then dirt is put into from hook in hydrochloric acid trough in Rinsing Area, the dirt on mold is cleaned with rag, is put on control water frame and is controlled after wash clean
Water dries up die surface moisture with small wind turbine, is then polished removing surface, cleaning, drying and throwing to die working length
Nitrogen treatment is carried out after light；
Nitrogen treatment process, the nitrogen treatment include：Nitriding furnace is warming up to 200 DEG C, gives ammonia；400 DEG C are warming up to, is given
Nitrogen and carbon dioxide；550 DEG C are warming up to, starts to keep the temperature, keeps the temperature 8-12 hours；450 DEG C are cooled to, nitrogen and titanium dioxide are closed
Carbon；230 DEG C are cooled to, ammonia is closed；180 DEG C are cooled to, can be come out of the stove；40 DEG C are cooled to, can be assembled.Nitrogenize furnaceman
20-24 hours are needed as process, wherein heating up 3-3.5 hours, nitriding furnace, which starts to cool down, after heat preservation 11-12 hours needs 8-9 small
When, nitridation furnace gas resolution ratio (ammonia decomposition) is 45-55.
Third walks, and the maintaining method for having produced and used mold includes：
Mold is framed up by specification size, divergent die, plane mould etc. and is put into alkali slot after setting, then alkali slot is given to heat, made
Alkali slot water temperature is maintained between 50 DEG C -70 DEG C, and the time is between 40-60 minutes；Time takes out mold after and is rinsed with clear water,
The temperature of clear water is controlled at 30-80 DEG C, and the temperature of clear water changes with the variation in season, specifically, May 1 --- September 30 days,
At 40 ± 10 DEG C, October 1 --- April 30, water temperature is controlled at 70 ± 10 DEG C for water temperature control.For band aluminum die, after die sinking
Mold wall has residual aluminium to be put into alkali slot to boil again primary, need 20-40 minutes.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Finally it should be noted that：Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Go out other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (4)
1. mold maintaining method in a kind of aluminum section extruder production, it is characterised in that：This approach includes the following steps：
A1, it first determines whether that the type of mold is to have produced and used mold or new die, is then selected according to the type of different molds
Select different maintaining methods；
A2, new die maintaining method include：
Preparation before nitridation, preparation includes before the nitridation：Removing surface, cleaning, drying and polishing；
Nitrogen treatment process, the nitrogen treatment include：
200 DEG C are warming up to, ammonia is given；
400 DEG C are warming up to, nitrogen and carbon dioxide are given；
550 DEG C are warming up to, starts to keep the temperature, keeps the temperature 8-12 hours；
450 DEG C are cooled to, nitrogen and carbon dioxide are closed；
230 DEG C are cooled to, ammonia is closed；
180 DEG C are cooled to, can be come out of the stove；
40 DEG C are cooled to, can be assembled；
A3, the maintaining method for having produced and used mold include：
Mold frames up, and mold is framed up by specification size, divergent die, plane mould etc. and is set；
Alkali slot heats, and mold frame is put into after alkali slot and starts to heat to alkali slot, alkali slot water temperature is made to be maintained between 50 DEG C -70 DEG C,
Time is between 40-60 minutes；
Clear water rinses, after the reaction of mold frame taking-up rinsed with clear water, the temperature of the clear water is controlled at 30-80 DEG C；
For band aluminum die, die sinking rear mold wall has residual aluminium to be put into alkali slot to boil again primary, need 20-40 minutes.
2. mold maintaining method in aluminum section extruder production according to claim 1, it is characterised in that：The step A2
The process of middle removing surface includes that mold hook is put into 25 ± 5% hydrochloric acid troughs, 15-20 minutes removing die surface rust of immersion,
Alkali dirt, dirt, ensure nitriding result.
3. mold maintaining method in aluminum section extruder production according to claim 1, it is characterised in that：The step A2
Middle nitrogen treatment process carries out in nitriding furnace, and the nitriding furnace course of work needs 20-24 hours, wherein heating up 3-3.5 hours, protects
Nitriding furnace, which starts to cool down, after 11-12 hours warm needs 8-9 hours, and nitridation furnace gas resolution ratio (ammonia decomposition) is 45-55.
4. mold maintaining method in aluminum section extruder production according to claim 1, it is characterised in that：The step A3
In clear water rinse cycle in, the temperature of the clear water changes with the variation in season, specifically, May 1 --- September 30 days, water
At 40 ± 10 DEG C, October 1 --- April 30, water temperature is controlled at 70 ± 10 DEG C temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165559.3A CN108620446A (en) | 2017-03-20 | 2017-03-20 | Mold maintaining method in a kind of production of aluminum section extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165559.3A CN108620446A (en) | 2017-03-20 | 2017-03-20 | Mold maintaining method in a kind of production of aluminum section extruder |
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| CN108620446A true CN108620446A (en) | 2018-10-09 |
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| CN201710165559.3A Pending CN108620446A (en) | 2017-03-20 | 2017-03-20 | Mold maintaining method in a kind of production of aluminum section extruder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482666A (en) * | 2018-10-31 | 2019-03-19 | 龙图节能铝材（宣城）有限公司 | The face bridge insulation thermal resistance aluminium section AB while extrusion process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202316628U (en) * | 2011-11-24 | 2012-07-11 | 南南铝业股份有限公司 | Device for separating aluminum and aluminum alloy from extrusion mould by alkali washing |
| CN103194701A (en) * | 2013-04-28 | 2013-07-10 | 东莞市铝美铝型材有限公司 | Production process for aluminium alloy profile |
| CN105369189A (en) * | 2015-11-30 | 2016-03-02 | 太仓久信精密模具股份有限公司 | Nitriding process for H13 die steel |
-
2017
- 2017-03-20 CN CN201710165559.3A patent/CN108620446A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202316628U (en) * | 2011-11-24 | 2012-07-11 | 南南铝业股份有限公司 | Device for separating aluminum and aluminum alloy from extrusion mould by alkali washing |
| CN103194701A (en) * | 2013-04-28 | 2013-07-10 | 东莞市铝美铝型材有限公司 | Production process for aluminium alloy profile |
| CN105369189A (en) * | 2015-11-30 | 2016-03-02 | 太仓久信精密模具股份有限公司 | Nitriding process for H13 die steel |
Non-Patent Citations (1)
| Title |
|---|
| 刘静安: "《轻合金挤压模具手册》", 31 January 2012, 北京：冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482666A (en) * | 2018-10-31 | 2019-03-19 | 龙图节能铝材（宣城）有限公司 | The face bridge insulation thermal resistance aluminium section AB while extrusion process |
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Application publication date: 20181009 |