JP4246713B2 - セラミック裏当材及びそれを用いた溶接用支持具 - Google Patents
セラミック裏当材及びそれを用いた溶接用支持具 Download PDFInfo
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- JP4246713B2 JP4246713B2 JP2005107902A JP2005107902A JP4246713B2 JP 4246713 B2 JP4246713 B2 JP 4246713B2 JP 2005107902 A JP2005107902 A JP 2005107902A JP 2005107902 A JP2005107902 A JP 2005107902A JP 4246713 B2 JP4246713 B2 JP 4246713B2
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- 239000000919 ceramic Substances 0.000 title claims description 140
- 239000000463 material Substances 0.000 title claims description 120
- 238000003466 welding Methods 0.000 title claims description 101
- 239000003365 glass fiber Substances 0.000 claims description 53
- 239000000843 powder Substances 0.000 claims description 45
- 239000002245 particle Substances 0.000 claims description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 35
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 33
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
- 239000011707 mineral Substances 0.000 claims description 23
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 20
- 238000005245 sintering Methods 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 229910052905 tridymite Inorganic materials 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052878 cordierite Inorganic materials 0.000 claims description 6
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims 2
- 229910021489 α-quartz Inorganic materials 0.000 claims 2
- 239000002893 slag Substances 0.000 description 35
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 30
- 239000002994 raw material Substances 0.000 description 28
- 239000011734 sodium Substances 0.000 description 26
- 239000011324 bead Substances 0.000 description 23
- 235000010755 mineral Nutrition 0.000 description 21
- 230000007547 defect Effects 0.000 description 19
- 230000035939 shock Effects 0.000 description 17
- 239000000395 magnesium oxide Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000010453 quartz Substances 0.000 description 8
- 230000004907 flux Effects 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011812 mixed powder Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000010433 feldspar Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- -1 and as a result Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008264 cloud Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- RLQWHDODQVOVKU-UHFFFAOYSA-N tetrapotassium;silicate Chemical compound [K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])[O-] RLQWHDODQVOVKU-UHFFFAOYSA-N 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/06—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for positioning the molten material, e.g. confining it to a desired area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3607—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/361—Alumina or aluminates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/52—Ceramics
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Optics & Photonics (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Nonmetallic Welding Materials (AREA)
Description
気孔率=(W3 −W1)/(W3 −W2)×100
(式中W1 は乾燥重量、W2 は水中重量、W3 は水から引き上げたときの飽和重量を表す。)
2)有機バインダの添加:次に、上記の混合粉末にポリビニルアルコール(PVA205)、ステアリン酸、パラフィンワックス、ナフタレン、おが屑及びその他の添加剤を上記のセラミック混合粉末に混ぜ、オーブンにより90〜110℃に8〜24時間乾燥したのち、40トンの機械圧力で個々のセラミック裏当材当たり成形圧力10〜30kgf/cm2で所定の形状に圧縮成形したのち、再度オーブンで90〜110℃に24時間乾燥し、その後1250〜1400℃で熱処理(焼結)してセラミック裏当材を作製する。
2)溶接電圧(V): 35
3)溶接電流(A): 900
4)鋼板厚さ : 16mm
5)溶接速度 : 29cm/min
6)開先角度 : 50
7)開先ギャップ : 2mm
8)溶接姿勢 : 下向き姿勢
なお、溶接ワイヤ及びフラックは、上記のL−8xS−707を使用したが、US−40xMF−100Nにおいても同様の結果が得られたことを確認した。
以上のように、本発明は、溶接産業の発展及び溶接条件の変化に応じて、溶接施工現場で適切な自動溶接を行うために、出願人が先に出願し特許された日本国特許第2857116号明細書に記載された自動溶接支持具を改良する、機械的強度と急熱急冷に対する耐熱衝撃性を有するセラミック裏当材及びそれを用いた自動溶接用支持具を提供することができる。
2 アルミニウムテープ
3 ガラス繊維体
4 鋼板
Claims (5)
- セラミック粉末を成形、焼結したセラミック裏当材であって、
前記セラミック粉末がSiO 2 を含む粉末粒子を主成分として含有し、
前記SiO 2 を含む粉末粒子が、α―石英、トリジマイト、クリストバライト、コーディエライト及びステアタイトからなる群から選択される1種以上の鉱物を90〜150メッシュの範囲の粒度に粉砕したものであり、
前記セラミック裏当材が、全体を100重量%として、SiO2:75〜95重量%、Al2O3:2〜15重量%、MgO:1〜5重量%、Na2O及び/又はK2O:0.3〜2重量%、水分:0.01〜0.5重量%を含み、残部が不可避的に混入される不純物であり、かつ12〜24%の気孔率を有する、
ことを特徴とするセラミック裏当材。 - 前記不可避的に混入される不純物の含有量が5重量%以下である、請求項1記載のセラミック裏当材。
- セラミック粉末を成形、焼結したセラミック裏当材と、前記セラミック裏当材の一つの面に積層されたガラス繊維体とを含む自動溶接用支持具であって、
前記セラミック粉末がSiO 2 を含む粉末粒子を主成分として含有し、
前記SiO 2 を含む粉末粒子が、α―石英、トリジマイト、クリストバライト、コーディエライト及びステアタイトからなる群から選択される1種以上の鉱物を90〜150メッシュの範囲の粒度に粉砕したものであり、
前記セラミック裏当材が、全体を100重量%として、SiO2:75〜95重量%、Al2O3:2〜15重量%、MgO:1〜5重量%、Na2O及び/又はK2O:0.3〜2重量%、水分:0.01〜0.5重量%を含み、残部が不可避的に混入される不純物であり、かつ12〜24%の気孔率を有し、
前記ガラス繊維体が、Si02:40〜70重量%、Al2O3:5〜20重量%、B2O3:3〜15重量%、CaO:8〜28重量%、アルカリ金属酸化物:0.5〜4重量%及び水分:0.01〜0.5重量%を含み、厚さ0.3〜1.5mmのガラス繊維体である、
ことを特徴とする自動溶接用支持具。 - 前記不可避的に混入される不純物の含有量が5重量%以下である、請求項3記載の自動溶接用支持具。
- 前記自動溶接用支持具が、ガラス繊維体を取り付けた面とは反対側のセラミック裏当材の面にアルミニウム粘着テープを更に取り付けたものである、請求項3又は4記載の自動溶接用支持具。
Applications Claiming Priority (1)
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KR10-2004-0026023A KR100463292B1 (ko) | 2004-04-16 | 2004-04-16 | 자동 용접용 지지구 |
Publications (2)
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JP2005306730A JP2005306730A (ja) | 2005-11-04 |
JP4246713B2 true JP4246713B2 (ja) | 2009-04-02 |
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Country Status (3)
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JP (1) | JP4246713B2 (ja) |
KR (1) | KR100463292B1 (ja) |
CN (1) | CN100424036C (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010120037A (ja) * | 2008-11-18 | 2010-06-03 | Ihi Corp | 裏当て部材及び溶接方法 |
CN103659106A (zh) * | 2013-11-13 | 2014-03-26 | 中天建设集团有限公司 | 一种木模板支架钢板电焊方法 |
KR101524236B1 (ko) * | 2014-01-17 | 2015-05-29 | 정무수 | 세라믹 용접 지지구 |
KR101583643B1 (ko) * | 2014-10-21 | 2016-01-08 | 포스코에너지 주식회사 | 2종 세라믹재 접합 방법 |
KR101638102B1 (ko) * | 2014-10-21 | 2016-07-08 | 포스코에너지 주식회사 | 2종 세라믹재 접합 방법 |
CN106810231A (zh) * | 2017-02-08 | 2017-06-09 | 合肥智慧龙图腾知识产权股份有限公司 | 一种机械性能好的陶瓷材料及其制备方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5772797A (en) * | 1980-10-22 | 1982-05-07 | Kobe Steel Ltd | Backing material for one side welding |
JPS57154399A (en) * | 1981-03-20 | 1982-09-24 | Kobe Steel Ltd | Backing strip for one-side welding |
JPS59169698A (ja) * | 1983-03-15 | 1984-09-25 | Nippon Steel Corp | 片面溶接用裏当材 |
JPS62244597A (ja) * | 1986-04-16 | 1987-10-24 | Kobe Steel Ltd | 溶接用裏当材 |
CN2038826U (zh) * | 1988-09-19 | 1989-06-07 | 交通部水运规划设计院 | 一种焊接衬垫 |
CN2038433U (zh) * | 1988-09-19 | 1989-05-31 | 交通部水运规划设计院 | 一种埋弧自动焊用半软衬垫 |
CN1052807A (zh) * | 1989-12-27 | 1991-07-10 | 曹今灿 | 带有背面焊缝形成层的焊接衬垫 |
CN2119290U (zh) * | 1992-02-22 | 1992-10-21 | 曹今灿 | 焊接软衬垫 |
JP2968166B2 (ja) * | 1994-03-02 | 1999-10-25 | 品川白煉瓦株式会社 | 珪石れんがの製造方法 |
JP3375784B2 (ja) * | 1995-04-27 | 2003-02-10 | 株式会社神戸製鋼所 | 片面溶接用裏当材 |
KR0163265B1 (ko) * | 1996-02-27 | 1999-01-15 | 정무수 | 자동 용접용 지지구 |
KR19980016628A (ko) * | 1996-08-29 | 1998-06-05 | 정무수 | 자동 용접용 지지구 |
CN1076330C (zh) * | 1997-07-24 | 2001-12-19 | 于寿学 | 一种焊接衬垫及生产方法 |
KR100357723B1 (ko) * | 2000-09-27 | 2002-10-25 | 정무수 | 대입열 탄산가스 편면 용접용 세라믹 백킹재 |
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2004
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2005
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- 2005-04-18 CN CNB200510064721XA patent/CN100424036C/zh active Active
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CN1683272A (zh) | 2005-10-19 |
KR20040052615A (ko) | 2004-06-23 |
JP2005306730A (ja) | 2005-11-04 |
KR100463292B1 (ko) | 2004-12-24 |
CN100424036C (zh) | 2008-10-08 |
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