JP4456462B2 - リフロー炉への混合ガス供給方法およびリフロー炉 - Google Patents
リフロー炉への混合ガス供給方法およびリフロー炉 Download PDFInfo
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- JP4456462B2 JP4456462B2 JP2004311442A JP2004311442A JP4456462B2 JP 4456462 B2 JP4456462 B2 JP 4456462B2 JP 2004311442 A JP2004311442 A JP 2004311442A JP 2004311442 A JP2004311442 A JP 2004311442A JP 4456462 B2 JP4456462 B2 JP 4456462B2
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- furnace
- oxygen concentration
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- 238000000034 method Methods 0.000 title claims description 22
- 239000001301 oxygen Substances 0.000 claims description 79
- 229910052760 oxygen Inorganic materials 0.000 claims description 79
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 78
- 239000007789 gas Substances 0.000 claims description 65
- 239000011261 inert gas Substances 0.000 claims description 46
- 238000005476 soldering Methods 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000011002 quantification Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 description 65
- 239000000843 powder Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 230000004907 flux Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 238000007664 blowing Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000012190 activator Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910020220 Pb—Sn Inorganic materials 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Description
2 炉の入口
3 炉の出口
4 トンネル状の炉
5 雰囲気封止体
7、8、9、10 混合ガス供給口
11、12、13、14 供給パイプ
17 混合パイプ
18 エアーパイプ
19 不活性ガスパイプ
20、21、22 定流量エアーパイプ
Claims (6)
- 不活性ガスと空気とが混合された混合ガスをリフロー炉へ供給するリフロー炉への混合ガス供給方法であって、
炉内に供給する空気の供給量を段階的に選択し、該選択した供給量に基づいて定量の空気と不活性ガスとを混合パイプ内で混合して混合ガスを生成し、該生成した混合ガスを、リフロー炉の立ち上げ時に、少なくともリフロー炉の入口近くの炉内、出口近くの炉内および他の適宜箇所にそれぞれ供給し、
炉内に供給した混合ガスの酸素濃度を測定し、
炉内の酸素濃度の測定結果が所望の酸素濃度になったら、不活性ガスの流量を調整することを特徴とするリフロー炉への混合ガス供給方法。 - 前記入口近くの炉内と出口近くの炉内への混合ガスの供給は、断続供給または当該混合ガスの供給量を調整することを特徴とする請求項1記載のリフロー炉への混合ガス供給方法。
- 前記リフロー炉内の酸素濃度は、500〜10,000ppmであることを特徴とする請求項1記載のリフロー炉への混合ガス供給方法。
- 炉内を所望の酸素濃度にしてプリント基板のはんだ付けを行うリフロー炉であって、
炉内に供給する空気の供給量を段階的に選択して、定量の空気を炉内に供給する空気供給源と、
流量を調整する流量調整弁を介して不活性ガスを炉内に供給する不活性ガス供給源と、
前記空気供給源及び前記不活性ガス供給源に接続され、前記空気供給源から供給された空気と前記不活性ガス供給源から供給された不活性ガスとを混合する混合パイプと、
前記混合パイプに接続され、少なくとも炉の入口近くの炉内、出口近くの炉内および他の適宜箇所に設けられた混合ガス供給口を有する供給パイプと、
前記供給パイプの混合ガス供給口から供給された混合ガスの酸素濃度を測定する酸素濃度測定部と、
前記酸素濃度測定部によって測定された混合ガスの酸素濃度に基づいて、前記流量調整弁を開閉制御する制御部とを備え、
前記制御部は、
リフロー炉の立ち上げ時には、前記空気供給源で選択された定量の空気と前記不活性ガスとが混合された混合ガスを炉内に供給し、前記酸素濃度測定部による炉内の酸素濃度の測定結果が所望の酸素濃度になったら、前記流量調整弁で不活性ガスの流量を調整することを特徴とするリフロー炉。 - 前記供給パイプのうち、少なくとも炉の出入口近くの混合ガス供給口に接続する供給パイプには開閉弁が設置されていることを特徴とする請求項4記載のリフロー炉。
- 前記流量調整弁は、電磁弁であることを特徴とする請求項4記載のリフロー炉。
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JP2004311442A JP4456462B2 (ja) | 2004-10-26 | 2004-10-26 | リフロー炉への混合ガス供給方法およびリフロー炉 |
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JP4456462B2 true JP4456462B2 (ja) | 2010-04-28 |
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CN110972400B (zh) * | 2019-12-20 | 2022-09-06 | 安徽天兵电子科技股份有限公司 | 一种pcb板烘烤装置 |
CN115383240A (zh) * | 2021-05-24 | 2022-11-25 | 伊利诺斯工具制品有限公司 | 用于回流焊炉的气体控制系统及回流焊炉 |
CN117686667B (zh) * | 2024-01-31 | 2024-04-09 | 伟凯美(深圳)自动化技术有限公司 | 一种氧气浓度检测分析方法、装置和系统 |
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