EP2735403A1 - Method for treatment ceramics parts, using in industry for producing artificial synthetic fibers, for the purpose of recycling - Google Patents
Method for treatment ceramics parts, using in industry for producing artificial synthetic fibers, for the purpose of recycling Download PDFInfo
- Publication number
- EP2735403A1 EP2735403A1 EP13194206.2A EP13194206A EP2735403A1 EP 2735403 A1 EP2735403 A1 EP 2735403A1 EP 13194206 A EP13194206 A EP 13194206A EP 2735403 A1 EP2735403 A1 EP 2735403A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceramic part
- ceramic
- treatment
- abrasive material
- sand
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 12
- 239000012209 synthetic fiber Substances 0.000 title claims abstract description 8
- 238000004064 recycling Methods 0.000 title claims abstract description 6
- 239000003082 abrasive agent Substances 0.000 claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000005488 sandblasting Methods 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 239000011324 bead Substances 0.000 abstract description 4
- 239000010432 diamond Substances 0.000 abstract description 3
- 229910003460 diamond Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
Definitions
- Object of the invention is a method for treatment ceramic parts, which are used in the industry of artificial synthetic fibers, for the purpose of recycling or more precisely controlled process of surface treatment with a view to the processing of the ceramic part to such a degree that it is achieved, that the ceramic part with the same purpose, or the same or similar characteristics is re-used in the production process of synthetic fibers as it has new ceramic part.
- the present invention allows controlled mechanically treating the surface of ceramic by removing the damaged/modified surface in order to achieve a known end surface.
- Ceramic parts used in the industry of synthetic fibers are usually made from high quality oxide ceramics, whose share of Al2O3 is about 99.6%.
- the ceramic materials are characterized by high mechanical strength, stability at high temperatures (temp. of the melting point ⁇ 2000 °C), low coefficient of thermal expansion and corrosion resistance.
- the ceramic parts, which are embedded in the manufacturing process are exposed to extreme operating conditions, such as high speed running artificial fibers (filament) to 5200 m/min, temperature from 30 to 80 °C, the quantity of matting agents ( from 0 % up to 1.6 % TiO 2 ) and the impact of the shape filament (trilobal, round). All previously described extreme conditions caused by constant changes in the surface of ceramic parts.
- Ceramics is material widely used in fiber industry in the spinning, texturing, covering and downstream fiber processing. Mainly as Spin finish applicators, Pigtails, Tread guides ,discs for texturing yarns, Guide discs, working discs and knife discs, Jet plates, Traverse guides, Eyelets Ceramic, cutters Rollers, birotors, etc. spin finish applicators Pigtails Jet
- Ceramics Chemical corrosion, friction, surface wear and electrostatic interaction during the production process demand ceramic material with high surface quality.
- Mainly such ceramics are known as technical ceramics e.g. oxide ceramics Al2O3 purities more than 90% and with different additives to improve physical characteristics.
- Due to requested ceramics structure which define high demanding mechanical properties the manufacturing process is composed of high temperature sintering conditions up to 1800 °C and time needed up to 200 minutes means high energy consumption. Therefore the ceramics parts present significant maintenance costs for fiber producers, especially when critical fibers are produced. Beside maintenance costs of fiber producers the production of new ceramic parts represent also a big environmental impact as energy consumption and toxic exhausting gases within sintering process.
- the process according to the invention allows that the changed and/or damaged and/or worn ceramic parts of various sizes and shapes that constitute the waste by-product of the processes of production and processing of synthetic artificial fibers and similar processes can be restored by subjecting the specific process of treating the surface with abrasive means, to reach the final quality of the known structure of the surface.
- the method of the invention allow to altered and/or damaged and/worn ceramic parts of different sizes and shapes, which are excluded from the production process of causing a variety of fiber tension, uneven application preparation oil, capillary breakage, the occurrence of loops in bobin and other physical and chemical changes in the fiber, which can lead to inhomogeneity of the fiber and a low production efficiency in the industry of synthetic artificial fibers and similar processes, exposed to controlled surface treatment by abrasive particles or sand-like particles (such as beads or diamond particles, or metal balls or particles) and other abrasive material in the form of spheres or particle, which can be used as a scrubbing agent for the surface treatment of the ceramic parts in order to achieve the same or very similar surface properties as a new ceramic works.
- abrasive particles or sand-like particles such as beads or diamond particles, or metal balls or particles
- other abrasive material in the form of spheres or particle which can be used as a scrubbing agent for the surface treatment of the ceramic
- a ceramic parts A of various shapes and dimensions, with a modified and/or damaged surface is exposed to controlled process of treating the surface with an abrasive agent B, that is, abrasive particles, or sand-like particles (such as beads or diamond particles, or metal balls particles) and many other abrasive materials in the form of spheres or particles, which can be used as a scrubbing agent for the surface treatment of the ceramic parts ( Figure 1 ).
- an abrasive agent B that is, abrasive particles, or sand-like particles (such as beads or diamond particles, or metal balls particles) and many other abrasive materials in the form of spheres or particles, which can be used as a scrubbing agent for the surface treatment of the ceramic parts ( Figure 1 ).
- Figure 4 shows a comparison of the structure of the new ceramic part and the ceramic part, which has been treated with the procedure of processing ceramic parts according to the invention
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Cleaning In General (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
- Object of the invention is a method for treatment ceramic parts, which are used in the industry of artificial synthetic fibers, for the purpose of recycling or more precisely controlled process of surface treatment with a view to the processing of the ceramic part to such a degree that it is achieved, that the ceramic part with the same purpose, or the same or similar characteristics is re-used in the production process of synthetic fibers as it has new ceramic part.
- Technical problem presented by the process according to the invention successfully addresses the recycling process of ceramic parts, especially in the industry of synthetic fibers, where the ceramic components are present in apparatus and machines for processing fibers.
- The present invention allows controlled mechanically treating the surface of ceramic by removing the damaged/modified surface in order to achieve a known end surface.
- Ceramic parts used in the industry of synthetic fibers are usually made from high quality oxide ceramics, whose share of Al2O3 is about 99.6%. The ceramic materials are characterized by high mechanical strength, stability at high temperatures (temp. of the melting point ≥ 2000 °C), low coefficient of thermal expansion and corrosion resistance. The ceramic parts, which are embedded in the manufacturing process are exposed to extreme operating conditions, such as high speed running artificial fibers (filament) to 5200 m/min, temperature from 30 to 80 °C, the quantity of matting agents ( from 0 % up to 1.6 % TiO2) and the impact of the shape filament (trilobal, round). All previously described extreme conditions caused by constant changes in the surface of ceramic parts.
- Ceramics is material widely used in fiber industry in the spinning, texturing, covering and downstream fiber processing. Mainly as Spin finish applicators, Pigtails, Tread guides ,discs for texturing yarns, Guide discs, working discs and knife discs, Jet plates, Traverse guides, Eyelets Ceramic, cutters Rollers, birotors, etc. spin finish applicators Pigtails Jet
- Chemical corrosion, friction, surface wear and electrostatic interaction during the production process demand ceramic material with high surface quality. Mainly such ceramics are known as technical ceramics e.g. oxide ceramics Al2O3 purities more than 90% and with different additives to improve physical characteristics. Due to requested ceramics structure which define high demanding mechanical properties the manufacturing process is composed of high temperature sintering conditions up to 1800 °C and time needed up to 200 minutes means high energy consumption. Therefore the ceramics parts present significant maintenance costs for fiber producers, especially when critical fibers are produced. Beside maintenance costs of fiber producers the production of new ceramic parts represent also a big environmental impact as energy consumption and toxic exhausting gases within sintering process.
- Nowadays fiber producers are forced to be focused on optimizing production yields and fiber quality. Only constant process conditions and polymer quality can lead to uniform dyability and efficient downstream processing.
- One of the most critical part of fiber processing equipment found in field of invention are ceramic parts. Changed / damaged ceramics surface due to fiber production process leads to non-uniform fiber quality, mainly provokes by different yarn tension and consequently high temperature.
- The process according to the invention allows that the changed and/or damaged and/or worn ceramic parts of various sizes and shapes that constitute the waste by-product of the processes of production and processing of synthetic artificial fibers and similar processes can be restored by subjecting the specific process of treating the surface with abrasive means, to reach the final quality of the known structure of the surface.
- The method of the invention allow to altered and/or damaged and/worn ceramic parts of different sizes and shapes, which are excluded from the production process of causing a variety of fiber tension, uneven application preparation oil, capillary breakage, the occurrence of loops in bobin and other physical and chemical changes in the fiber, which can lead to inhomogeneity of the fiber and a low production efficiency in the industry of synthetic artificial fibers and similar processes, exposed to controlled surface treatment by abrasive particles or sand-like particles (such as beads or diamond particles, or metal balls or particles) and other abrasive material in the form of spheres or particle, which can be used as a scrubbing agent for the surface treatment of the ceramic parts in order to achieve the same or very similar surface properties as a new ceramic works.
- The invention will be explained in detail on the basis of an embodiment and the accompanying drawings, in which:
-
Figure 1 show the surface of the ceramic part which is subjected to a treatment with abrasive particles; -
Figure 2 show the controlled passage through the nozzle staticsided ceramic part; -
Figure 3 show guided nozzles with vertical and horizontal displacement in relation to a moving clamped ceramic part (rotating) ; -
Figure 4 a comparison of the new, used and updated surface of the ceramic part of the process according to the invention. - A ceramic parts A of various shapes and dimensions, with a modified and/or damaged surface is exposed to controlled process of treating the surface with an abrasive agent B, that is, abrasive particles, or sand-like particles (such as beads or diamond particles, or metal balls particles) and many other abrasive materials in the form of spheres or particles, which can be used as a scrubbing agent for the surface treatment of the ceramic parts (
Figure 1 ). - Method of treating ceramic parts A, which is used in the industry of artificial synthetic fibers, for the purpose of recycling is divided into three main stages, namely:
- preparation of the ceramic part A, where changed/damaged ceramic part A is controlled with optical or similar magnifying device more than 30 x magnification to verify the surface of the ceramic part A suitable for processing with abrasive material B. In this step eliminating broken or damaged ceramic parts which would lead that further surface treatment would not proper change the ceramics surface to the level of new one. Method of optical determination can be manual or even upgraded to full automatic detection of changed/damaged surface of ceramics as cracks, fractures, broken edges, etc.). Ceramic part A preparation step can be also omitted but this leads to higher reject at the final treatment and the optical control.
- treatment the surface of the ceramic part A with abrasive material B, where ceramic part A which was already optically controlled for the readiness of the surface to be mechanical treated is embedded in the carrier of the sand blasting machine with the abrasive material B. Machine has to have precise (e.g. electronically) guided (according pre-set process cycle) nozzle C (Figure (a2)) which with controlled movement over the static embedded ceramic part A removes changed surface of ceramic part to the level as new ceramics part is demonstrating. The process can be also driven in such a way that carrier of the ceramic part A (Figure (a3)) of is moving (e.g. rotating) and movement of guided nozzle C is in relation of movements in vertical and horizontal direction to treat the ceramics surface of the ceramic part A.
In a composition of machine settings for processing with abrasive material B (Figure 2 and3 ) the following parameters are important;- (i) inlet angle D of blasting nozzle C which should be between 0 degrees and 180° according to impact position to the ceramic part A surface,
- (ii) abrasive media B as sand or sand like materials (selection of right dimension, shape and material structure):
- in the invention process two different materials were in use, such as Corundum 220 and Corundum 70, usage of both depending of ceramic parts A final surface properties were requested,
- (iii) the size of sand basting nozzle C for abrasive media B (size of nozzle between 0.01 mm to 1 cm),
- (iv) speed or time which is needed that the sand blasting machine for processing with abrasive material B treat particular section of ceramic part surface (time of treating one surface point of ceramic part A surface and after each further part of ceramics surface area points among whole ceramics surface is between 0.1s to 3 minutes),
- (v) pressure of the sand blasting device for processing with abrasive material B which pushes the abrasive particles to the ceramic part A surface to achieve removal of changed surface of ceramic part (inlet air pressure is more than 2 bar).
- final treatment and optical control where the ceramic part A which was exposed to surface controlled abrasion is exposed to gentle polishing treatment of treated ceramics surface (e.g. movements of fine nylon / cotton brushes with direct contact over ceramics treated surface). After the polishing treatment also ultrasonic treatment is an option to achieve perfect non-dusty surface of ceramics part A surface (ultrasonic bathing is not a must but an option to achieving better result in matter of cleanliness of the ceramics part A surface). Last action is the optical control of the treated ceramics part with optical or similar magnifying device more than 30 x magnifications to confirm the ceramics part A surface is in the same condition as new ceramics part.
- Within development of proper method for treating the changed / damaged ceramics surfaces several different methods were evaluated as;
- mechanical brushing of ceramic part A surface (e.g. abrasive rotating discs);
- mechanical abrasion of ceramics parts surface (e.g. high speed polishing yarn with polishing abrasive paste)
- protecting or renewing the ceramic part A surface with applying of mechanical resistant lacquer and backing that lacquer with high temperature up to 1500 °C or process of polymerization under ultraviolet light.
-
Figure 4 shows a comparison of the structure of the new ceramic part and the ceramic part, which has been treated with the procedure of processing ceramic parts according to the invention
Claims (6)
- Method of treatment ceramic parts, using in industry of artificial synthetic fibers, for the purpose of recycling,
characterized in that,
it takes place in three stages, namely: ceramic part (A) preparation, treatment of the surface of the ceramic part (A) with abrasive material (B) and final treatment with optical control. - Method according to claim 1,
characterized in that,
in the preparation of ceramic part (A), check the manual or automated machined ceramic part (A) with an optical magnifying device zoom more than 30x, eliminated cracked or such damaged areas of ceramic parts (A). - Method according to claim 1,
characterized in that,
in the processing surface of the ceramic part (A) with the abrasive material (B), optically inspected ceramic part (A) is inserted in the bed of the apparatus for processing with abrasive material (B), wherein the device has a precisely controlled, according to pre-process parameters nozzle (C) which, with controlled directed movement through static spanning the ceramic part (A), removes the modified surface of the ceramic part (A). - Method according to claim 3,
characterized in that,
the ceramic part (A) is movable or rotating mounted in the device for treatment, or the ceramic part (A) is static mounted in the bed of the device for treatment and the nozzle (C) travel over them. - Method according to claims 3 or 4
characterized in that,
the angle (D) of sand blasting nozzle (C) for abrasive material (B) is between 0° and 180° according to impact position of the ceramic part (A) surface,
abrasive material (B) is sand or sand like material such as Corundum 220 and Corundum 70;
the size of sand basting nozzle (C) for abrasive material (B) is between 0.01 mm to 1 cm);
speed or time which is needed for processing with abrasive material (B) is between 0.1 sec to 3 minutes;
pressure of the sand blasting device is more than 2 bar). - Method according to claim 3,
characterized in that,
in the final processing of the ceramic part (A) its surface is treated with a gentle polishing action in the region where the modified surface is removed, and alternatively use ultrasonic bath, followed by a visual check the machined surface of the ceramic part (A).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HRP20151142TT HRP20151142T1 (en) | 2012-11-26 | 2015-10-28 | Method for treatment ceramics parts, using in industry for producing artificial synthetic fibers, for the purpose of recycling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201200360A SI24226B (en) | 2012-11-26 | 2012-11-26 | Method of treating the ceramic pieces, which are used in industry artificial syntetic fibers for the purpuse of recycling |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2735403A1 true EP2735403A1 (en) | 2014-05-28 |
EP2735403B1 EP2735403B1 (en) | 2015-08-12 |
Family
ID=49816779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13194206.2A Active EP2735403B1 (en) | 2012-11-26 | 2013-11-25 | Method for treatment ceramics parts, using in industry for producing artificial synthetic fibers, for the purpose of recycling |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2735403B1 (en) |
HR (1) | HRP20151142T1 (en) |
SI (1) | SI24226B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115229688A (en) * | 2022-07-27 | 2022-10-25 | 怀化伯立迅科技有限公司 | Prevent mirror surface injection rifle head of static |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB596963A (en) * | 1945-08-08 | 1948-01-14 | Samuel Wilkinson Dronsfield | Improvements in or relating to grinders for textile machinery |
US3839769A (en) * | 1973-06-18 | 1974-10-08 | Deering Milliken Res Corp | Apparatus to produce non-woven fabric |
DE19705197C1 (en) * | 1997-02-12 | 1998-12-10 | Gerhard Dipl Ing Wanger | Gas bearing for high speed rotor |
-
2012
- 2012-11-26 SI SI201200360A patent/SI24226B/en active Search and Examination
-
2013
- 2013-11-25 EP EP13194206.2A patent/EP2735403B1/en active Active
-
2015
- 2015-10-28 HR HRP20151142TT patent/HRP20151142T1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB596963A (en) * | 1945-08-08 | 1948-01-14 | Samuel Wilkinson Dronsfield | Improvements in or relating to grinders for textile machinery |
US3839769A (en) * | 1973-06-18 | 1974-10-08 | Deering Milliken Res Corp | Apparatus to produce non-woven fabric |
DE19705197C1 (en) * | 1997-02-12 | 1998-12-10 | Gerhard Dipl Ing Wanger | Gas bearing for high speed rotor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115229688A (en) * | 2022-07-27 | 2022-10-25 | 怀化伯立迅科技有限公司 | Prevent mirror surface injection rifle head of static |
CN115229688B (en) * | 2022-07-27 | 2023-12-05 | 怀化伯立迅科技有限公司 | Antistatic mirror surface spray gun head |
Also Published As
Publication number | Publication date |
---|---|
EP2735403B1 (en) | 2015-08-12 |
HRP20151142T1 (en) | 2015-11-20 |
SI24226B (en) | 2016-01-29 |
SI24226A (en) | 2014-05-30 |
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