CN105890358A - Production system for steel wooden door metal raw material - Google Patents
Production system for steel wooden door metal raw material Download PDFInfo
- Publication number
- CN105890358A CN105890358A CN201610399983.XA CN201610399983A CN105890358A CN 105890358 A CN105890358 A CN 105890358A CN 201610399983 A CN201610399983 A CN 201610399983A CN 105890358 A CN105890358 A CN 105890358A
- Authority
- CN
- China
- Prior art keywords
- chamber
- production system
- pipe
- refining chamber
- inlet pipe
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0812—Continuously charging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a production system for a steel wooden door metal raw material. The production system comprises an outer furnace shell, an inner furnace shell and an electric heating layer; a baffle is arranged in the inner furnace shell and divides the internal part of the inner furnace shell into a melting chamber and a refining chamber, a feeding pipe is arranged on the upper portion of the outer furnace shell, the outer side of the outer furnace shell is provided with a connecting pipe, a discharging pipe, a first gas inlet pipe, a second gas inlet pipe, a second exhaust pipe and a first exhaust pipe, the connecting pipe is communicated with the melting chamber and the refining chamber, the discharging pipe is communicated with a casting box and the refining chamber, the first gas inlet pipe is communicated with an external space, the melting chamber and the refining chamber, the second gas inlet pipe is communicated with the external space and the refining chamber, and the first exhaust pipe is communicated with the external space and the melting chamber. According to the production system, the refining chamber and the casting box are arranged, the purpose of removing aluminum oxide and hydrogen in molten aluminum is achieved by introducing mixed gas into molten aluminum contained in the refining chamber, and the molten aluminum quality is improved; in addition, a tail gas purifying device is arranged, and therefore the working environment is improved; it is guaranteed that molten aluminum cannot make contact with air in the casting process through the casting box.
Description
Technical field
The present invention relates to a kind of metallurgical plant, be particularly used for the production system of steel timber raw metal.
Background technology
Door and window as in people's daily life often in contact with the article arrived, not only play keep out wind and rain, heat insulation, sound insulation, daylighting, the effect such as ventilation, but also be the important component part of architectural image, their shape, size, color, moulding etc. have critically important impact to the moulded of building.Along with the raising of people's living standard, people are increasing to the demand of door and window, and the requirement to door and window is more and more diversified.
Aluminum alloy doors and windows are important branch of door and window, and aluminum alloy doors and windows refer to that using aluminum alloy extrusion section bar is frame, stile, the door and window of fan material making.Aluminum alloy doors and windows because of have attractive in appearance, seal, intensity high is widely used.The section bar of aluminum alloy doors and windows and glass style are divided into glazing bar style and flower glass style, wherein, glazing bar style is thick with aluminium, style is sedate as main characteristics, and flower glass style is with aluminium various shapes, style vivaciously as main characteristics, and style has lattice, ice sculpture, low relief, brilliant shellfish etc..
In the aluminum alloy doors and windows technological process of production, first operation is exactly blanking, required aluminum alloy frame material and fan material can be obtained by blanking, but, no matter the device of blanking have many accurately and high-end, a lot of discarded leftover pieces will be produced, for a factory, if the loss that will result in flood tide directly thrown away by these discarded leftover pieces, the most a lot of enterprises all select to try every possible means to reclaim these discarded leftover pieces efficiently thus reduce the production cost of aluminum alloy doors and windows to reach to promote the purpose of oneself product competitiveness.
The first step reclaiming aluminium alloy scrap needs to melt these aluminium alloy scraps, and equipment used is fusing stove, and fusing stove can meet aluminum alloy melting technique well.But, traditional fusing stove only has the function melting aluminium alloy, in casting cycle, aluminium alloy can contact with the oxygen in air and hydrogen, make the foundry goods obtained have pore, be mingled with, the defect such as loosen, directly affecting the physical property of aluminium alloy castings, mechanical property and serviceability, if quality of aluminum alloy casting parts is low, follow-up casting technique is the most advanced, the defect being initially present in aluminium alloy castings still can exist, it is difficult to eliminates.
Summary of the invention
The technical problem to be solved is for the shortcoming of conventional fused stove, production system for steel timber raw metal is provided, solves Al alloy parts or aluminium liquid ingress of air and conventional fused stove in conventional fused stove casting cycle and do not possess refining effect and cause the problem that quality of aluminum alloy casting parts is low.
nullThe present invention is achieved through the following technical solutions: for the production system of steel timber raw metal，Including stove outer covering，Stove inner casing it is provided with inside described stove outer covering，It is provided with electric heating layer between stove outer covering and stove inner casing，Stove inner housing inner is provided with baffle plate，The inner space of stove inner casing is divided into two parts by described baffle plate，Wherein top is divided into melting chamber，Bottom is divided into refining chamber，Stove outer covering is provided above charge pipe，Described charge pipe runs through stove outer covering and connects with melting chamber，The outside of stove outer covering is provided with connecting tube、Drainage conduit、First air inlet pipe、Second air inlet pipe、Second exhaust pipe and downtake pipe，Wherein，Described connecting tube connection melting chamber and refining chamber，Also include foundry goods case，Drainage conduit connection foundry goods case and refining chamber，First air inlet pipe connection space outerpace、Melting chamber and refining chamber，Second air inlet pipe connection space outerpace and refining chamber，Downtake pipe connection space outerpace and melting chamber.On the one hand, the fusing stove of prior art only has the ability of melting aluminum alloy workpiece, cast after having melted, but, oxygen can be contacted at charging, preheating, melting stage Al alloy parts or aluminium liquid and cause quality of aluminum alloy casting parts low, even if subsequent technique is the most advanced, the mass defect initially produced cannot be eliminated, defect according to conventional fused stove, this device is provided with refining chamber, reaches to remove the aluminum oxide in aluminium liquid and the purpose of hydrogen by the mixed gas being passed through chlorine, carbon monoxide and nitrogen in refining chamber.On the other hand prior art can not well completely cut off air in the casting stage, even if after being refined by refining furnace, the casting quality finally obtained is the highest.In sum, if making fusing stove have the function of refinery molten aluminium, and aluminium liquid and air contact is prevented will to be greatly improved the quality of foundry goods in the last casting stage.nullWhen using this device，By the first air inlet pipe connective protection gas cylinder，Downtake pipe connection vavuum pump，Open connecting tube，Remaining each closedown of pipeline，Then pass to protect gas to melting chamber、Replace inside refining chamber and foundry goods case，After having replaced，Close connecting tube，Downtake pipe is connected air or be passed through observation oil in seen whether that bubble produces，The circulation of gas is protected in keeping fusing stove and foundry goods case，It is then turned on electric heating layer，By the temperature monitoring being arranged in melting chamber, the temperature of melting chamber is controlled at 200 to 300 °，Close downtake pipe afterwards，Open the first air inlet pipe angle valve further，Increase the intake of protection gas，Then charge pipe is opened，At this moment protection gas is discharged from charge pipe，Al alloy parts to be melted is poured afterwards into from charge pipe，When after division of labor part in accumulation portion in melting chamber，Continue the temperature of heating melting chamber to 600 to 700 °，After having fed，Close charge pipe，Open downtake pipe，Keep protected gas in melting chamber and foundry goods case，After melting a part of workpiece，Open connecting tube，The aluminium liquid flow melted in melting chamber is made to enter in refining chamber，By the second air inlet pipe connection gaseous mixture steel cylinder，Open the second air inlet pipe and second exhaust pipe，Aluminium liquid after fusing is passed through mixed gas，Chlorine in mixed gas can react with aluminum oxide and generate oxygen and aluminium chloride，Carbon monoxide in oxygen and mixed gas can generate carbon dioxide，Thus eliminate aluminum oxide present in aluminium liquid，Nitrogen in mixed gas can take the hydrogen being adsorbed in aluminium liquid out of，Additionally，Aluminium chloride at high temperature can distil，Together discharge with mixed gas，As mentioned above，Aluminum oxide that mixed gas can be taken out of in refining chamber in aluminium liquid and hydrogen，Reach to purify the effect of aluminium liquid，After refining，Open drainage conduit，Aluminium liquid is entered in foundry goods case by drainage conduit，Carry out cast molding，Because protected gas in foundry goods case，Make the cast molding in the environment of isolation air of aluminium liquid，Additionally，The most protected gas shielded when this device melts workpiece in melting chamber，Workpiece and air contact are further completely cut off.
Further, exhaust gas cleaner, described second exhaust pipe connection refining chamber and exhaust gas cleaner are also included.Because mixed gas has chlorine, so, the responseless chlorine of part can be discharged in air together along with mixed gas, and the health of operating personnel is caused damage by aggravating working environment, also can corrode equipment.Therefore, being connected in exhaust gas cleaner by downtake pipe, fill sodium hydroxide solution and can remove chlorine in exhaust gas cleaner, downtake pipe is deep in sodium hydroxide solution removing effect can be more preferably, after removing chlorine, tail gas is entered in air by second exhaust pipe.
Further, described connecting tube is positioned at the one end within melting chamber and is provided with filter screen, and one end that described drainage conduit is positioned within refining chamber is provided with filter screen.Arranging the workpiece that filter screen is possible to prevent not to be completely melt and block connecting tube and drainage conduit, causing cannot cast molding continuously.
Further, described connecting tube uses resistant to elevated temperatures heat-insulating material.The purpose of connecting tube employing high-temperature resistant thermal insulating material is to ensure that when aluminium liquid flows out from melting chamber and heat will not be caused because of the low temperature of free surrounding space to scatter and disappear.
Further, in described first air inlet pipe, threeway is set, the first air inlet pipe is provided with Pressure gauge.Arranging threeway can make operating personnel preferably control to protect gas; such as; when the aluminium liquid in melting chamber has been introduced in refining chamber; can regulate threeway makes protection gas not enter melting chamber and only lead in foundry goods case; arranging Pressure gauge can allow operating personnel know the pressure in melting chamber, and aspect operating personnel replace.
Further, described second air inlet pipe in the one end within refining chamber bottom refining chamber.The purpose so arranging the second air inlet pipe is mixed gas to be passed directly in aluminium liquid, reaches preferably to remove the purpose of aluminum oxide and hydrogen in aluminium liquid.
Further, described stove outer covering is provided above driving means, and the output of described driving means connects has rotary shaft, described rotary shaft to run through stove outer covering in refining chamber, rotary shaft part above baffle plate connects the first paddle, and rotary shaft bottom connects the second paddle.Can melt workpiece more quickly by stirring, improve the operating efficiency of melting chamber, the second paddle in refining chamber can make mixed gas and aluminium liquid be fully contacted thus improve refining effect.
Further, 3/4ths of a length of melting chamber radius of described first paddle.Found by production practices, a length of melting chamber radius of paddle 3/4ths time, the operating efficiency of melting chamber is the highest, and the workpiece in melting chamber can be stirred the most uniformly by the driving means i.e. connecting rotary shaft with minimum live load.
Further, 2/3rds of a length of first paddle length of described second paddle.Found by production practices, the a length of first paddle length of the second paddle 2/3rds time, mixing effect in refining chamber is optimal, because refining chamber is not required to the most violent stirring, its purpose is primarily to make mixed gas react more abundant with aluminium liquid.
Further, the part that the output of described driving means is connected with rotary shaft is resistant to elevated temperatures heat-insulating material.The purpose so arranged is to protect the driving means connecting rotary shaft so that it is will not produce damage because of the temperature of rotary shaft conduction.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention is provided with refining chamber, by being passed through mixed gas in the aluminium liquid in refining chamber, reaches to remove the aluminum oxide in aluminium liquid and hydrogen, improves the quality of aluminium liquid, beneficially subsequent technique；
2, the present invention is by arranging protection gas and foundry goods case, stop foundry goods in fusing and casting cycle with air contact, all prevent foundry goods because of oxidation and to contact the problem that caused casting quality is low with steam in fusing with the casting stage；
3, the present invention devises exhaust gas processing device, it is possible to effectively remove chlorine, it is to avoid it is passed through in air and causes damage operating personnel and plant equipment；
4, the present invention passes through production practices, finds as 3/4ths of a length of melting chamber radius of paddle, and driving means can reach preferably to stir with less live load, improves the operating efficiency of fusing stove further.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of semi-section of the present invention.
Mark and the parts title of correspondence in accompanying drawing:
1-stove outer covering, 2-stove inner casing, 3-electric heating layer, 4-connecting tube, 5-second exhaust pipe, 6-exhaust gas cleaner, 7-charge pipe, 8-rotary shaft, 9-the first air inlet pipe, 10-the second air inlet pipe, 11-drainage conduit, 12-downtake pipe.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment
nullAs shown in Figure 1，The present invention is the production system for steel timber raw metal，Including stove outer covering 1，It is provided with stove inner casing 2 inside described stove outer covering 1，Electric heating layer 3 it is provided with between stove outer covering 1 and stove inner casing 2，Stove inner casing 2 is internally provided with baffle plate，The inner space of stove inner casing 2 is divided into two parts by described baffle plate，Wherein top is divided into melting chamber，Bottom is divided into refining chamber，Stove outer covering 1 is provided above charge pipe 7，Described charge pipe 7 runs through stove outer covering 1 and connects with melting chamber，The outside of stove outer covering 1 is provided with connecting tube 4、Drainage conduit 11、First air inlet pipe 9、Second air inlet pipe 10、Second exhaust pipe 5 and downtake pipe 12，Wherein，Described connecting tube 4 connects melting chamber and refining chamber，Also include foundry goods case，Drainage conduit 11 connects foundry goods case and refining chamber，First air inlet pipe 9 connects space outerpace、Melting chamber and refining chamber，Second air inlet pipe 10 connects space outerpace and refining chamber，Downtake pipe 12 connects space outerpace and melting chamber.Further, also include that exhaust gas cleaner 6, described second exhaust pipe 5 connect refining chamber and exhaust gas cleaner 6.Further, described connecting tube 4 is positioned at the one end within melting chamber and is provided with filter screen, and one end that described drainage conduit 11 is positioned within refining chamber is provided with filter screen.Further, described connecting tube 4 uses resistant to elevated temperatures heat-insulating material.In described first air inlet pipe 9, threeway is set, the first air inlet pipe 9 is provided with Pressure gauge.Further, described second air inlet pipe 10 in the one end within refining chamber bottom refining chamber.Further, described stove outer covering 1 is provided above driving means, and the output of described driving means connects has rotary shaft 8, described rotary shaft 8 to run through in stove outer covering 1 to refining chamber, the rotary shaft 8 part above baffle plate connects the first paddle, and rotary shaft 8 bottom connects the second paddle.Further, 3/4ths of a length of melting chamber radius of described first paddle.Further, 2/3rds of a length of first paddle length of described second paddle.Further, the part that the output of described driving means is connected with rotary shaft 8 is resistant to elevated temperatures heat-insulating material.nullWhen using this device，Melting chamber is replaced first by nitrogen、Air in refining chamber and foundry goods case，Open electric heating layer 3，By the temperature monitoring being arranged in melting chamber, the temperature of melting chamber is risen to 200 to 300 °，Strengthen the air inflow of nitrogen，Close downtake pipe 12，Open charge pipe 7，Gas is discharged from charge pipe 7，Al alloy parts is poured into from charge pipe 7，After in melting chamber, accumulation portion lease making crosses the workpiece of preheating，Open and be positioned at the motor above stove outer covering 1，Motor drives the first paddle and the second paddle to start stirring by rotary shaft 8，After charging，Close charge door 7，Open downtake pipe 12，Nitrogen is kept to circulate in melting chamber and foundry goods case，Continue the temperature of heating melting chamber afterwards to 600 to 700 °，The workpiece now piled up bottom melting chamber gradually melts along with stirring，Open connecting tube 4 afterwards，Aluminium liquid enters in refining chamber and is stirred by the second paddle，Open the second air inlet pipe 10，It is passed through mixed gas in aluminium liquid，The ratio of mixed gas is nitrogen: chlorine: carbon monoxide is 8:1:1，Mixed gas is reacted with the aluminium liquid in refining chamber，After removing the aluminum oxide in aluminium liquid and hydrogen，Tail gas is entered in exhaust gas cleaner 6 by second exhaust pipe 5，By react with sodium hydroxide solution remove chlorine after enter back into air，Open the die casting member that drainage conduit 11 is pointed in foundry goods case afterwards，During foundry goods，Adjust the threeway in the first air inlet pipe 9，Nitrogen is made to be directly entered without melting chamber in foundry goods case，Casting cycle is played a protective role，The blast pipe that nitrogen is arranged from foundry goods case enters air.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (10)
- null1. for the production system of steel timber raw metal，Including stove outer covering (1)，Described stove outer covering (1) inner side is provided with stove inner casing (2)，Electric heating layer (3) it is provided with between stove outer covering (1) and stove inner casing (2)，It is characterized in that，Stove inner casing (2) is internally provided with baffle plate，The inner space of stove inner casing (2) is divided into two parts by described baffle plate，Wherein top is divided into melting chamber，Bottom is divided into refining chamber，Stove outer covering (1) is provided above charge pipe (7)，Described charge pipe (7) runs through stove outer covering (1) and connects with melting chamber，The outside of stove outer covering (1) is provided with connecting tube (4)、Drainage conduit (11)、First air inlet pipe (9)、Second air inlet pipe (10)、Second exhaust pipe (5) and downtake pipe (12)，Wherein，Described connecting tube (4) connection melting chamber and refining chamber，Also include foundry goods case，Drainage conduit (11) connection foundry goods case and refining chamber，First air inlet pipe (9) connection space outerpace、Melting chamber and refining chamber，Second air inlet pipe (10) connection space outerpace and refining chamber，Downtake pipe (12) connection space outerpace and melting chamber.
- Production system for steel timber raw metal the most according to claim 1, it is characterised in that also include exhaust gas cleaner (6), described second exhaust pipe (5) connection refining chamber and exhaust gas cleaner (6).
- Production system for steel timber raw metal the most according to claim 1, it is characterised in that described connecting tube (4) is positioned at the one end within melting chamber and is provided with filter screen, and one end that described drainage conduit (11) is positioned within refining chamber is provided with filter screen.
- Production system for steel timber raw metal the most according to claim 1, it is characterised in that described connecting tube (4) uses resistant to elevated temperatures heat-insulating material.
- Production system for steel timber raw metal the most according to claim 1, it is characterised in that arranging threeway in described first air inlet pipe (9), the first air inlet pipe is provided with Pressure gauge on (9).
- Production system for steel timber raw metal the most according to claim 1, it is characterised in that described second air inlet pipe (10) in the one end within refining chamber bottom refining chamber.
- Production system for steel timber raw metal the most according to claim 1, it is characterized in that, described stove outer covering (1) is provided above driving means, the output of described driving means connects rotary shaft (8), described rotary shaft (8) runs through stove outer covering (1) in refining chamber, the rotary shaft (8) part above baffle plate connects the first paddle, and rotary shaft (8) bottom connects the second paddle.
- Production system for steel timber raw metal the most according to claim 7, it is characterised in that 3/4ths of a length of melting chamber radius of described first paddle.
- Production system for steel timber raw metal the most according to claim 7, it is characterised in that 2/3rds of a length of first paddle length of described second paddle.
- Production system for steel timber raw metal the most according to claim 7, it is characterised in that the part that the output of described driving means is connected with rotary shaft (8) is resistant to elevated temperatures heat-insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399983.XA CN105890358A (en) | 2016-06-08 | 2016-06-08 | Production system for steel wooden door metal raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399983.XA CN105890358A (en) | 2016-06-08 | 2016-06-08 | Production system for steel wooden door metal raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105890358A true CN105890358A (en) | 2016-08-24 |
Family
ID=56710967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399983.XA Pending CN105890358A (en) | 2016-06-08 | 2016-06-08 | Production system for steel wooden door metal raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105890358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278713A (en) * | 2018-01-17 | 2019-09-24 | 株式会社恩凯金属 | Aluminium melting system and its method of operation |
-
2016
- 2016-06-08 CN CN201610399983.XA patent/CN105890358A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278713A (en) * | 2018-01-17 | 2019-09-24 | 株式会社恩凯金属 | Aluminium melting system and its method of operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102618738B (en) | Smelting process for aluminum-silicon master alloy | |
| CN114277270B (en) | Manufacturing method and manufacturing device of low-density corrosion-resistant high-strength aluminum alloy | |
| CN105861841A (en) | Processing production line based on door-window hardware recycling | |
| CN105861839A (en) | Oxygen separating system used for producing steel wooden door metal material | |
| CN105890358A (en) | Production system for steel wooden door metal raw material | |
| CN105838887A (en) | Recovery device for punch forming excess materials of antitheft doors | |
| CN114413623A (en) | Aluminum ingot melting furnace | |
| CN107782131A (en) | The recovery system of aluminum alloy doors and windows waste material | |
| CN107782135A (en) | A kind of melting furnace with preheating device and refining chamber | |
| CN105953581A (en) | Production line used for steel wooden door raw material | |
| CN105861840A (en) | Antitheft-door stamping-forming leftover regeneration device | |
| CN107774935A (en) | A kind of melting furnace that can completely cut off air in the casting stage | |
| CN105838890A (en) | Improved recycling device for metal accessories of suit doors | |
| CN107779600A (en) | Machining production line based on the recovery of door and window hardware part | |
| CN105865204A (en) | Door and window hardware recycling device based on preheating mechanism | |
| CN107774933A (en) | A kind of melting furnace with refining chamber and casting case | |
| CN207240680U (en) | A kind of injection molding machine prepares smelting furnace with raw material | |
| CN105841485A (en) | Recovery system for waste materials of aluminum alloy doors and windows | |
| CN107782136A (en) | A kind of melting furnace for possessing pre- hot function | |
| CN107782132A (en) | A kind of improved structure of the melting furnace with preheating device | |
| CN107774938A (en) | A kind of dual chamber melting furnace for having preheating and isolation air function | |
| CN107243602B (en) | Model casting aluminium alloy smelting pouring procedure | |
| CN107774936A (en) | A kind of improved structure of the melting furnace with refining chamber | |
| CN105838888A (en) | Regeneration system based on punch forming excess materials of antitheft doors | |
| CN104975197A (en) | Rare-earth magnesium alloy preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |