GB2452933A - Magnetic tube cleaning apparatus - Google Patents

Magnetic tube cleaning apparatus Download PDF

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Publication number
GB2452933A
GB2452933A GB0718265A GB0718265A GB2452933A GB 2452933 A GB2452933 A GB 2452933A GB 0718265 A GB0718265 A GB 0718265A GB 0718265 A GB0718265 A GB 0718265A GB 2452933 A GB2452933 A GB 2452933A
Authority
GB
United Kingdom
Prior art keywords
tube
magnetic poles
units
aperture
casing member
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
Application number
GB0718265A
Other versions
GB0718265D0 (en
GB2452933B (en
Inventor
Johann Friedrich Ortlieb
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0718265A priority Critical patent/GB2452933B/en
Publication of GB0718265D0 publication Critical patent/GB0718265D0/en
Publication of GB2452933A publication Critical patent/GB2452933A/en
Application granted granted Critical
Publication of GB2452933B publication Critical patent/GB2452933B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The apparatus comprises a casing comprising first and second casing members 3,4, hinged together at 5. The casing has apertures at both ends defining an inner sleeve 8, 9, and a linear arrangement of magnetic poles 11 on each casing member. A flexible snake-like member comprising a plurality of pivotally interconnected units 12 is arranged for insertion into the inner surface of the tube 13. The units 12 have a cleaning surface (18,Fig.4) and a plurality of magnetic poles, and they are connected together via I-shaped connectors comprising a cross member and a central connecting rod (17, 16, respectively, Fig.4). When the magnetic poles 11 are moved relative to the plurality of units 12 positioned within the tube, the magnets cause the units to contact and move along the inner surface of the tube, to clean the tube.

Description

Tube Cleaning Apparatus The present invention relates to tube cleaning apparatus and particularly, but not exclusively, to tube cleaning apparatus for cleaning tubes used in aquariums.
Aquariums are welt-known for providing a tropical environment for fish and the like.
However, the warm water also provides an ideal habitat for the growth of algae and as a result it is not uncommon for the walls of the aquarium to be covered with a green layer of algae.
in addition to being unsightly, algae also remove the oxygen from the water. Accordingly, if the algae are allowed to build up then the fish can suffocate. The algae are typically removed from the walls of the aquarium by passing scrapers across the walls. However, the growth of algae within the tubes that redirect water within the aquarium presents more of a cleaning challenge. In addition, the tubes become prone to the build-up of scum, grime and fish food, alt of which can block the tubes and pollute the water.
The tubes are typically cleaned by inserting a narrow brush into the tube to scrape away the algae and grime etc. For tong tubes however, the brush may not extend fully into the tube and so only partial cleaning may be achieved.
I have now devised tube cleaning apparatus which enables the entire length of tubes to be cleaned along their inner surface.
in accordance with the present invention as seen from a first aspect, there is provided tube cleaning apparatus, the apparatus comprising a substantially linear arrangement of a first plurality of magnetic poles, the apparatus further comprising a substantially linear arrangement of a plurality of units which are pivotally connected via pivot means and which are inserted into the tube to be cleaned, wherein each unit comprises at least one of a second plurality of magnets, such that as the first plurality of magnetic poles are moved relative to the plurality of units positioned within the tube, the first plurality of magnets causes the units to contact the inner surface of the tube.
The first plurality of magnetic poles is preferably supported within a housing. Preferably, the housing comprises an elongate aperture extending through the housing for receiving the tube to be cleaned. The first plurality of magnetic poles are preferably arranged adjacent the aperture and extend substantially parallel to the aperture.
The units are preferably cIrcular in cross-section and comprise a diameter which is slightly smaller than the tube to be cleaned. Accordingly, as the first plurality of magnetic poles are moved relative to the plurality of units, the interaction of the first plurality of magnetic poles with the second plurality of magnets causes the units to move across the tube as the magnetic poles repel and attract the magnets. Preferably, each of the plurality of units moves substantially perpendicularly to the direction of relative movement between the magnetic poles and the plurality of units.
The pivot means preferably comprises and I-shaped linkage comprising a connecting rod formed with a cross-member at either end. The cross-members preferably extend substantially perpendicularly to the connecting rod and are held within adjacent units.
The cross-members preferably constrain the units from twisting with respect to each other so that the outer surface of each unit remains substantially parallel to the inner surface of the tube to be cleaned.
The first plurality of magnetic poles is preferably arranged along the aperture such that adjacent poles comprise opposite polarity.
Preferably, the housing further supports a third plurality of magnetic poles. The third plurality of magnetic poles are preferably arranged adjacent the aperture and extend substantially parallel to the aperture.
The third plurality of magnetic poles is preferably arranged along the aperture such that adjacent poles comprise opposite polarity.
Preferably, the first plurality of magnetic poles and the third plurality of magnetic poles are arranged either side of the aperture, substantially opposite each other. Preferably, each of the first plurality of magnetic poles is preferably aligned substantially opposite one of the third plurality of magnetic poles.
Preferably, each pair of poles arranged substantially opposite each other either side of the aperture have the same polarity.
The TMNORTH-SOUTH' axes of each of the second plurality of magnets are preferably aligned in the same direction.
The housing preferably comprises a first casing member and a second casing member pivotally connected to enable the housing to be opened. Preferably, the first casing member and second casing member comprise a semi-circular groove such that when the first and second casing members are brought together to form the housirTg; the grooves align to form the aperture.
Preferably, the first casing member comprises the first plurality of magnetic poles and the second casing member preferably comprises the third plurality of magnetic poles.
The first and second casing members are preferably lockably connected via locking means. Preferably the locking means comprises a resiliently biased barb secured to the first casing member which engages with a flange arranged on the second casing member.
Preferably, the units comprise an outer ridged surface to aid the cleaning of the tube.
In accordance with the present invention as seen from a second aspect there is provided a method of cleaning tubes, the method comprising: providing a tube cleaning apparatus of the first aspect, positioning the tube to be cleaned adjacent the first plurality of magnetic poles; inserting the plurality of units into the tube to be cleaned; and, moving the first plurality of magnetic poles along the plurality of units to cause the units to contact the inner surface of the tube.
Different types of cleaning may be carried out by moving the first plurality of magnetic poles relative to the units in different ways. The magnetic interaction between the first plurality of magnetic poles and the second plurality of magnets is sufficiently weak such that a rapid relative movement between the first plurality of magnetic poles and the plurality of units causes the units to lag behind the movement of the magnetic poles. In this manner, the units oscillate across the tube and thus act to scrub the tube.
In contrast a slow relative movement of the first plurality of magnetic poles with respect to the plurality of units causes the units to more closely follow the movement of the magnetic poles.
Thus, the first plurality of magnetic poles may preferably be moved quickly back and forth along the tube relative to the units to cause the units to oscillate across the tube while simultaneously moving along the tube. Alternatively, the magnetic poles may preferably be moved more slowly along the tube so that the units move together with the magnetic poles. The former movement of the magnetic poles creates an impact on the inner surface of the tube while the lafter movement creates more of a scraping action. In combination with the above movements or independently thereof, the first plurality of magnetic poles maybe further rotated about the tube to create a twisting of the units along the inner surface of the tube to further aid the cleaning of the tube.
The preferred embodiment of the present Invention will now be given by way of example only and with reference to the accompanying drawings, in which: Figure 1 is a perspective view of the tube cleaning apparatus of the present invention; Figure 2 is an exploded view of the tube cleaning apparatus of the present invention; Figure 3 is a sectional view taken along line A-A of figure 2; and, FIgure 4 Is a magnified view of the pivoted connection between the units.
Referring to the drawings, there is shown the tube cleaning apparatus I of the present invention. The apparatus 1 comprises a housing 2, comprising first and second casing members 3, 4 hingedly coupled via a hinge 5 arranged along one side of the casing members 3, 4. The first casing member 3 comprises a barb 6, or clip arranged on one side thereof, which is resiliently biased to engage with a flange 7 arranged on the second casing member 4, to secure the first and second casing members 3, 4 together.
The first and second casing members 3, 4 comprise a first and second inner sleeve 8, 9, respectively, which are substantially semi-circular in cross-section, such that when the two casing members 3, 4 are brought together the sleeves 8, 9 define an elongate aperture 10 which extends through the housing 2.
The inner sleeves 8, 9 further serve to support a plurality of magnets 11 within the respecthie casing member 3, 4. The magnets 11 within the first casing member 3 are arranged such that the poles of the magnets 11 arranged along the first sleeve 8 alternate between a NORTH' and "SOUTH' pole. Similarly, the magnets 11 within the second casing member 4 are also arranged such that the poles of the magnets 11 arranged along the second sleeve 9 alternate between a "NORTH' and SOUTH pole.
The magnets 11 are arranged within the respective casing members 3, 4 such those magnets 11 arranged substantially opposite each other, either side of the aperture 10, have like poles facing each other.
The apparatus I further comprises a plurality of interconnected units 12 that move within the tube 13 to be cleaned and which is positioned between the sleeves 8, 9. The units 12 are pivotally connected together by a linkage 14 which permits one unit 12 to move across the tube 10 relative to the adjacent unit 12 as shown in figure 4.
Each unit 12 comprises a magnet 15 which is aligned such that the NORTH-SOUTH' axis of each magnet 15 is substantially across the aperture 10, so as to interact with the poles of the magnets 11 arranged either side of the aperture 10. The linkage 14 comprises a substantially I-shaped member comprising a central connecting rod 16 formed with a cross-member 17 at either end, which extend substantially perpendicularly to the connecting rod 16. The cross-members 17 are held within the respective units 12 and prevent the units 12 from twisting with respect to each other so that that the outer surface 18 of the units 12 remain substantially parallel with the inner surface of the tube 13 being cleaned.
In use, the housing 2 is opened by removing the barb 6 on the first casing member 3 from under the flange 7 arranged on the second casing member 4. The tube 13 to be cleaned is then placed upon the second sleeve 9 and the housing 2 is then closed by pivoting the first casing member 3 onto the second casing member 4 until the barb 6 asnapsn under the flange 7.
The plurality of units 12 are then inserted into the tube 13 and the housing 2 is moved over the units 12. As the housing 2 is moved over the units 12, the magnets 11 within the first and second casing members 3, 4 influence the positioning of the units 12 across the width of the tube 13. If the housing 2 is moved quickly back and forth along a selected length of the tube 13, the units 12 within the tube 13 will oscillate back and forth across the tube 13 as the magnets 11 repel and attract the magnets 15 wIthin the units 12. This is because the friction between the units 12 and the inner surface of the tube 13 causes the units 12 to lag behind the relatively rapid movement of the housing 2.
Consequently, different magnetic poles arranged along the aperture 10 become presented to the magnets 15 within the units 12. In this manner, the units oscillate across the tube as the magnets 15 within the units 12 experience varying degrees of attraction and repulsion. This agitation of the units 12 thus serves to scrub the inner surface of the tube 13, thereby removing the build up of algae, scum and any grime.
Conversely, if the housIng 2 is moved slowly over the units 12, the magnets 15 wIthin the units 12 will interact with the magnets 11 in the casing members 3. 4 causing the units 12 to take up a stationary position either side of the inner surface of the tube 13. The preference of the units to take up a position on a particular side of tube wilt depend upon the attraction or repulsion created by the magnets 11 upon the magnets 15 within the units 12. Thus, by moving the housing 2 slowly along the tube 13, the units 12 will scrape the inner surface of the tube 13 to remove the build-up of algae, scum and any grime.
In addition, the housing 2 may be rotated about the tube 13. This action causes the units 12 to twist around the Inner surface of the tube 13 to further remove the build-up of grime etc. Once all the material has been dislodged from the inner surface of the tube 13, the housing 2 may then be opened and the tube 13 may be removed. The units 12 may then be removed from the tube 13, which is then subsequently flushed through with water or other suitable cleaning fluid, to remove all the unwanted dirt and grime.
From the foregoing therefore, it is evident that the tube cleaning apparatus of the present invention provides a simple yet effective means of cleaning within the entire length of tubes.

Claims (1)

  1. Claims 1. Tube cleaning apparatus, the apparatus comprising a substantially linear arrangement of a first plurality of magnetic poles, the apparatus further comprising a substantially linear arrangement of a plurality of units which are pivotally connected via pivot means and which are inserted into the tube to be cleaned, wherein each unit comprises at least one of a second plurality of magnets, such that as the first plurality of magnetic poles are moved relative to the plurality of units positioned within the tube, the first plurality of magnets causes the units to contact the inner surface of the tube.
    2. Apparatus according to claim 1, wherein the units are circular in cross-sectiorv and comprise a diameter which is slightly smaller than the tube to be cleaned.
    3. Apparatus according to claim I or 2, wherein each of the plurality of units moves substantially perpendicularly to the direction of relative movement between the magnetic poles and the plurality of units.
    4. Apparatus according to any preceding claim, wherein the pivot means comprises an I-shaped linkage comprising a connecting rod formed with a cross-member at either end.
    5. Apparatus according to daim 4, wherein the cross-members extend substantially perpendicularly to the connecting rod and are held within adjacent units. * ** * * * * **
    4 Apparatus according to claim 4 or 5, wherein the cross-members constrain the units from twisting with respect to each other so that the outer surface of each * S. 30... unit remains substantially parallel to the inner surface of the tube to be cleaned.
    S S..
    7. Apparatus according to any preceding claim, wherein the first plurality of ... magnetic poles are supported within a housing.
    * s*. .5 * S 8. Apparatus according to claim 7, wherein the housing comprises an elongate aperture extending through the housing for receiving the tube to be cleaned.
    9. Apparatus according to claim B, wherein the first plurality of magnetic poles are arranged adjacent the aperture and extend substantially parallel to the aperture.
    10. Apparatus according to claim 8 or 9, wherein the first plurality of magnetic poles are arranged along the aperture such that adjacent poles comprise opposite polarity.
    11. Apparatus according to any of claims 7 to 10, wherein the housing further supports a third plurality of magnetic poles.
    12. Apparatus according to claim 11, wherein the third plurality of magnetic poles are arranged adjacent the aperture and extend substantially parallel to the aperture.
    13. Apparatus according to claim 11 or 12, wherein the third plurality of magnetic poles are arranged along the aperture such that adjacent poles comprise opposite polarity.
    14. Apparatus according to any of claims 11 to 13, wherein the first plurality of magnetic poles and the third plurality of magnetic poles are arranged either side of the aperture, substantially opposite each other.
    15. Apparatus according to any of claims 11 to 14, wherein, each of the first plurality of magnetic poles is aligned substantially opposite one of the third plurality of * ** **, magnetic poles. S... * * *.**
    16. Apparatus according to claim 14 or 15, wherein, each pair of poles arranged *:*::* substantially opposite each other either side of the aperture have the same . polarity. * ..
    Apparatus according to any preceding claim, wherein the NORTH-SOUTH' axis * : * of each of the second plurality of magnets are aligned in the same direction.
    18. Apparatus according to claim 7, wherein the housing comprises a first casing member and a second casing member pivotally connected to enable the housing to be opened.
    19. Apparatus according to claim 18 as appended to claim 8, wherein the first casing member and second casing member comprise a semi-circular groove such that when the first and second casing members are brought together to form the housing, the grooves align to form the aperture.
    20. Apparatus according to claim 18 or 19, wherein the first casing member comprises the first plurality of magnetic poles and the second casing member comprises the third plurality of magnetic poles.
    21. Apparatus according to any of claims 18 to 20, wherein the first and second casing members are lockably connected via locking means.
    22. Apparatus according to claim 21, wherein the locking means comprises a resiliently biased barb secured to the first casing member which engages with a flange arranged on the second casing member.
    23. Apparatus according to any preceding claim, wherein the units comprise an outer ridged surface to aid the cleaning of the tube.
    24. A method of cleaning tubes, the method comprising: providing a tube cleaning apparatus of any preceding claim, * .* ***, positioning the tube to be cleaned adjacent the first plurality of magnetic poles; * inserting the plurality of units into the tube to be cleaned; and, moving the first plurality of magnetic poles along the plurality of units to cause the * ** 30.., units to contact the inner surface of the tube.
    S ***
    25. A method according to claim 24, wherein the first plurality of magnetic poles are * S. moved quickly back and forth along the tube relative to the units to cause the units to oscillate across the tube while simultaneously moving along the tube. a
    26. A method according to claim 24, wherein the magnetic poles are moved slowly along the tube so that the units move together with the magnetic poles.
    27. A method according to any of claims 24 to 26, wherein the first plurality of magnetic poles are rotated about the tube to create a twisting of the units along the inner surface of the tube to further aid the cleaning of the tube.
    28. Tube cleaning apparatus substantially as herein described with reference to the accompanying drawings.
    29. A method of cleaning tubes substantially as herein described with reference to the accompanying drawings. * .* * a * * ** *** * * * * a, a. S * *.
    S S..
    S * S. * S * * S..
    S
    S S
GB0718265A 2007-09-20 2007-09-20 Tube cleaning apparatus Active GB2452933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0718265A GB2452933B (en) 2007-09-20 2007-09-20 Tube cleaning apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0718265A GB2452933B (en) 2007-09-20 2007-09-20 Tube cleaning apparatus

Publications (3)

Publication Number Publication Date
GB0718265D0 GB0718265D0 (en) 2007-10-31
GB2452933A true GB2452933A (en) 2009-03-25
GB2452933B GB2452933B (en) 2012-04-25

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Family Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007044A1 (en) * 2010-02-03 2011-08-04 Inka 30982 Meyer zum Alten Borgloh Device for cleaning inner space of wind instrument i.e. trumpet, has flexible magnetic cleaning body and magnetic guide body, which comprise permanent magnet, and cleaning body and guide body casings
WO2012114049A1 (en) * 2011-02-25 2012-08-30 Sra Savac Device for inspecting a steam generator
US20130081653A1 (en) * 2011-10-04 2013-04-04 Theodosios Kountotsis System and method for tube cleaning
CN108893404A (en) * 2018-07-19 2018-11-27 佛山市宝粤美科技有限公司 A kind of sampler and its application method based on pipeline cultivation algae
CN115055452A (en) * 2022-06-01 2022-09-16 连城凯克斯科技有限公司 Method for cleaning quartz tube of silicon carbide crystal growth furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112850453B (en) * 2021-01-06 2023-11-10 义乌市双江湖开发集团有限公司 Assembled integral type building composite floor slab assembling stable hoisting system
CN113431981B (en) * 2021-07-09 2022-06-14 重庆交通大学 Prevent tunnel drain pipe of crystallization jam

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839085A (en) * 1972-03-27 1974-10-01 Richards Corp Tube surface scraping
SU648295A1 (en) * 1977-01-14 1979-02-25 Sakovich Boris P Apparatus for breaking up deposits in tubes made of non-macnetic material
SU1697913A1 (en) * 1989-11-09 1991-12-15 Предприятие П/Я М-5729 Apparatus for conditioning the surface of workpiece from diamagnetic material
US6206978B1 (en) * 1999-12-13 2001-03-27 Roger Williams General Hospital Process for cleaning aquarium tank walls
US20030217422A1 (en) * 2002-05-21 2003-11-27 Fu-Hsiung Tsai Cleaning assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839085A (en) * 1972-03-27 1974-10-01 Richards Corp Tube surface scraping
SU648295A1 (en) * 1977-01-14 1979-02-25 Sakovich Boris P Apparatus for breaking up deposits in tubes made of non-macnetic material
SU1697913A1 (en) * 1989-11-09 1991-12-15 Предприятие П/Я М-5729 Apparatus for conditioning the surface of workpiece from diamagnetic material
US6206978B1 (en) * 1999-12-13 2001-03-27 Roger Williams General Hospital Process for cleaning aquarium tank walls
US20030217422A1 (en) * 2002-05-21 2003-11-27 Fu-Hsiung Tsai Cleaning assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007044A1 (en) * 2010-02-03 2011-08-04 Inka 30982 Meyer zum Alten Borgloh Device for cleaning inner space of wind instrument i.e. trumpet, has flexible magnetic cleaning body and magnetic guide body, which comprise permanent magnet, and cleaning body and guide body casings
DE102010007044B4 (en) * 2010-02-03 2012-10-11 Inka Meyer zum Alten Borgloh Cleaning device for cleaning the interior of wind instruments
WO2012114049A1 (en) * 2011-02-25 2012-08-30 Sra Savac Device for inspecting a steam generator
FR2972071A1 (en) * 2011-02-25 2012-08-31 Sra Savac DEVICE FOR INSPECTING A STEAM GENERATOR
CN103415891A (en) * 2011-02-25 2013-11-27 思维克 Device for inspecting a steam generator
US20130081653A1 (en) * 2011-10-04 2013-04-04 Theodosios Kountotsis System and method for tube cleaning
CN108893404A (en) * 2018-07-19 2018-11-27 佛山市宝粤美科技有限公司 A kind of sampler and its application method based on pipeline cultivation algae
CN115055452A (en) * 2022-06-01 2022-09-16 连城凯克斯科技有限公司 Method for cleaning quartz tube of silicon carbide crystal growth furnace
CN115055452B (en) * 2022-06-01 2023-09-22 连城凯克斯科技有限公司 Cleaning method for quartz tube of silicon carbide crystal growth furnace

Also Published As

Publication number Publication date
GB0718265D0 (en) 2007-10-31
GB2452933B (en) 2012-04-25

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