CN107421239A - Major diameter pink fused alumina emery wheel drying means - Google Patents
Major diameter pink fused alumina emery wheel drying means Download PDFInfo
- Publication number
- CN107421239A CN107421239A CN201710593304.7A CN201710593304A CN107421239A CN 107421239 A CN107421239 A CN 107421239A CN 201710593304 A CN201710593304 A CN 201710593304A CN 107421239 A CN107421239 A CN 107421239A
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- CN
- China
- Prior art keywords
- emery wheel
- hours
- drying
- fused alumina
- major diameter
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a kind of major diameter pink fused alumina emery wheel drying means, is carried out after being covered in emery wheel blank upper surface with fiber cloth in conventional drying stove, Drying Technology Parameter：Incubation at room temperature 72 hours；35 DEG C are warming up to after 10 hours, is incubated 24 hours；60 DEG C are warming up to after 10~12.5 hours, is incubated 72 hours；90 DEG C are warming up to after 10~15 hours, is incubated 96 hours；Temperature fall is controlled to room temperature, each stage heating speed per hour by average speed per hour again.Thermal source is sent in drying oven by the caused hot-air in combustion gas vehicle type kiln temperature-fall period by pipeline, by Valve controlling air inflow.The present invention effectively controls the speed per hour of temperature rise period and covered with fiber cloth, avoid the appearance of crackle in drying process, product quality is effectively ensured, yield rate brings up to more than 99%, it not only avoid the economic loss brought by waste product, and the revolving strength of product is effectively increased, maximum linear velocity is further protected up to 70m/s, usage safety performance.
Description
Technical field
The present invention relates to a kind of major diameter pink fused alumina emery wheel, a kind of major diameter pink fused alumina emery wheel that makes is specifically related to
Drying means.
Background technology
With the fast development of the industries such as China's Aero-Space, automobile, ship, agricultural machinery, the requirement for bent axle
More and more higher, material used is increasingly high-grade, and bent axle diameter is increasing, thus requires more and more higher to being ground emery wheel used,
First, the diameter of emery wheel is very big（In more than 1000mm）, second, the abrasive material requirement of emery wheel is tight, it is no longer satisfied with Brown Alundum（A）, it is white
Corundum WA etc., but select the higher pink fused alumina of toughness（PA）, to meet larger stock removal and higher workpiece surface finish,
Also to keep axle journal R angular shapes simultaneously.Major diameter pink fused alumina emery wheel specification kind is more, diameter D1000mm~2000mm, has flat
Row, one side groove, two-sided groove, multiple solutions emery wheel and with radiating groove emery wheel, be mainly used in automobile, tractor, motorcycle and
The retrofit of the various bent axles of aero-engine, camshaft and accessory, the high-strength wear-resistant alloy steel of big marine diesel engine,
The crankshaft grinding processing of forged steel, cast steel or Nodular cast iron material.The toughness of abrasive material is improved due to introducing Cr3+ in pink fused alumina,
Its toughness is high compared with white fused alumina, and hardness is close with white fused alumina, and during for processing the larger material of toughness, its processing efficiency is than firm in vain
It is beautiful high, and the finish of workpiece surface is also preferable.But when making major diameter pink fused alumina emery wheel, due to the spy of pink fused alumina in itself
Property, after burning till can at the cylindrical and endoporus of emery wheel the small radial cracking of generation, so as to cause emery wheel to be scrapped, both can not and
When provide the user with production, and cause economic loss to manufacturer.In fact, for the big pink fused alumina emery wheel of specification, do
Dry is critical process.Because blank diameter is larger, moisture outwards spreads relatively difficult, is extremely difficult to the effect of evenly drying；So
Wet blank can not carry out rapid draing.Most producer solves using the methods of special installation, special process, reduction rate of drying
This problem.But occur in the crackle that the one side of emery wheel and pad contact has through-thickness, and crackle is very fine, during loading of kiln
It can not check and, crackle waste product is necessarily led to after so burning till.
The content of the invention
The purpose of the present invention is exactly to overcome the weak point of existing pink fused alumina emery wheel drying process, there is provided a kind of dry mass
Good, the major diameter pink fused alumina emery wheel drying means that crackle waste product is few, production cost is low.
The technical scheme is that：Major diameter pink fused alumina emery wheel drying means, the major diameter pink fused alumina emery wheel it is straight
Footpath D1000mm~2000mm, it, which is theed improvement is that, covers the major diameter pink fused alumina emery wheel blank after shaping with fiber cloth
Its upper surface, it is placed in conventional drying stove and is dried, its technological parameter is：
Said temperature refers to thermal resistance measurement temperature.
Further scheme is：The major diameter pink fused alumina emery wheel drying means, it is necessary to thermal source by combustion gas vehicle type kiln drop
Caused hot-air during temperature is sent in drying oven by pipeline, by Valve controlling air inflow.
Technical solution of the present invention effectively controls due to devising room temperature, 35 DEG C, 60 DEG C, several insulation points such as 90 DEG C
The speed per hour of temperature rise period, therefore when being dried, the speed for excluding moisture content has obtained effective control, avoids wet blank because dry
Dry speed causes base substrate the phenomenon of radial cracking occur soon；And covered in emery wheel blank upper surface with fiber cloth so that emery wheel
The rate of drying on the upper and lower surface of blank reaches unanimity, and avoids the appearance of emery wheel and pad contact face through-thickness crackle, has
Effect ensures product quality, and yield rate brings up to more than 99%, not only avoid the economic loss brought by waste product, and effectively carry
The high revolving strength of product, maximum linear velocity are further protected up to 70m/s, usage safety performance.It is simultaneously as hot
Source supply is the caused hot-air in the combustion gas vehicle type kiln temperature-fall period utilized, has saved production cost, is advantageous to improve warp
Ji benefit.
Embodiment
20,1-1250*123.5*304.8-PA/F60L7V-63m/s pink fused aluminas emery wheel is made, by formula material mixing, molding
Afterwards, it is placed on special blank drying cart to cover its upper surface pusher with fiber cloth and enter drying oven and is dried, will be fired by pipeline
Caused hot-air in gas vehicle type kiln temperature-fall period is sent into drying oven, by the Valve controlling air inflow on pipeline, so as to control
Temperature in drying oven processed.Whole process is performed by following Drying Technology Parameter.
Dried pink fused alumina emery wheel blank flawless, it is not necessary to good in economic efficiency using other thermals source；Simultaneously through burning
Into, processing after flawless waste product, detected using turn-around machine by 70m/s linear velocities, all by the way that user 63m/s can be met
Requirement, the percentage of A-class goods is up to 100%.
Claims (2)
1. major diameter pink fused alumina emery wheel drying means, diameter D1000mm~2000mm of the major diameter pink fused alumina emery wheel, it is special
Sign is the major diameter pink fused alumina emery wheel blank after shaping covering its upper surface with fiber cloth, is placed in conventional drying stove
Row drying, its technological parameter are：
Said temperature refers to thermal resistance measurement temperature.
2. the major diameter pink fused alumina emery wheel drying means as described in claim 1, it is characterised in that the thermal source of the conventional drying stove
It is sent to by the caused hot-air in combustion gas vehicle type kiln temperature-fall period by pipeline in drying oven, by Valve controlling air inflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593304.7A CN107421239A (en) | 2017-07-20 | 2017-07-20 | Major diameter pink fused alumina emery wheel drying means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593304.7A CN107421239A (en) | 2017-07-20 | 2017-07-20 | Major diameter pink fused alumina emery wheel drying means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107421239A true CN107421239A (en) | 2017-12-01 |
Family
ID=60429851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593304.7A Pending CN107421239A (en) | 2017-07-20 | 2017-07-20 | Major diameter pink fused alumina emery wheel drying means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107421239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002239A (en) * | 2019-11-22 | 2020-04-14 | 辽宁程瑞砂轮有限公司 | Method for manufacturing ceramic bond large-diameter grinding wheel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731059A (en) * | 2005-08-03 | 2006-02-08 | 黄敬民 | Drying process for steel ball grinding wheel |
| CN2906497Y (en) * | 2006-02-20 | 2007-05-30 | 钮了根 | Circulating hot-blast furnace drying device |
| WO2008140503A1 (en) * | 2007-05-09 | 2008-11-20 | Protege Enterprises | Dryer and drying apparatus with enhanced moisture removal |
| CN102141342A (en) * | 2010-12-10 | 2011-08-03 | 山东玉和磨具制造有限公司 | Process for drying steel ball grinding wheel |
| CN103465186A (en) * | 2013-09-13 | 2013-12-25 | 常熟市巨力砂轮有限责任公司 | Vitrified bonded grinding wheel manufacturing method |
| CN103693967A (en) * | 2012-09-27 | 2014-04-02 | 江苏苏北砂轮厂有限公司 | Firing method for steel ball grinding abrasive wheel |
| CN203744659U (en) * | 2013-11-21 | 2014-07-30 | 江苏苏北砂轮厂有限公司 | Ceramic bond grinding wheel wet green drying room |
| CN104315830A (en) * | 2014-11-05 | 2015-01-28 | 江苏苏北砂轮厂有限公司 | Drying method for grinding steel ball grinding wheel |
-
2017
- 2017-07-20 CN CN201710593304.7A patent/CN107421239A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731059A (en) * | 2005-08-03 | 2006-02-08 | 黄敬民 | Drying process for steel ball grinding wheel |
| CN2906497Y (en) * | 2006-02-20 | 2007-05-30 | 钮了根 | Circulating hot-blast furnace drying device |
| WO2008140503A1 (en) * | 2007-05-09 | 2008-11-20 | Protege Enterprises | Dryer and drying apparatus with enhanced moisture removal |
| CN102141342A (en) * | 2010-12-10 | 2011-08-03 | 山东玉和磨具制造有限公司 | Process for drying steel ball grinding wheel |
| CN103693967A (en) * | 2012-09-27 | 2014-04-02 | 江苏苏北砂轮厂有限公司 | Firing method for steel ball grinding abrasive wheel |
| CN103465186A (en) * | 2013-09-13 | 2013-12-25 | 常熟市巨力砂轮有限责任公司 | Vitrified bonded grinding wheel manufacturing method |
| CN203744659U (en) * | 2013-11-21 | 2014-07-30 | 江苏苏北砂轮厂有限公司 | Ceramic bond grinding wheel wet green drying room |
| CN104315830A (en) * | 2014-11-05 | 2015-01-28 | 江苏苏北砂轮厂有限公司 | Drying method for grinding steel ball grinding wheel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002239A (en) * | 2019-11-22 | 2020-04-14 | 辽宁程瑞砂轮有限公司 | Method for manufacturing ceramic bond large-diameter grinding wheel |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |