WO2006057029A1 - 可溶栓用合金および可溶栓 - Google Patents
可溶栓用合金および可溶栓 Download PDFInfo
- Publication number
- WO2006057029A1 WO2006057029A1 PCT/JP2004/017376 JP2004017376W WO2006057029A1 WO 2006057029 A1 WO2006057029 A1 WO 2006057029A1 JP 2004017376 W JP2004017376 W JP 2004017376W WO 2006057029 A1 WO2006057029 A1 WO 2006057029A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alloy
- mass
- fusible
- fusible plug
- plug
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C12/00—Alloys based on antimony or bismuth
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
Definitions
- the present invention relates to a fusible plug alloy that operates as a protective mechanism of a refrigeration apparatus, particularly a fusible plug alloy that operates at 70-75 ° C and 95-100 ° C, and the fusible plug alloy. It relates to the soluble stopper used.
- this CFC refrigerant has the problem of photolysis by the ultraviolet rays of sunlight in the stratosphere to produce active chlorine, and this active chlorine destroys the ozone layer. I've been here. For this reason, HCFC (Hydro, Chloro, Fluoro-Carbons) refrigerants, which are alternative chlorofluorocarbons, are now being replaced, and HFC (Hydro, Fluoro-Carbons) refrigerants with a smaller ozone depletion coefficient also appear. As a result, the refrigerant used in refrigerators is also changing.
- a fusible stopper used in a refrigeration apparatus needs to be designed according to the refrigerant used.
- the temperature of the refrigerant used increases as the pressure of the refrigerant used in the refrigeration system increases due to Boyle Charles' law, so the operating temperature of the fusible stopper used according to the condensing pressure of the refrigerant used Is determined.
- the temperature of the fusible stopper is designed to be about 95-100 ° C.
- the condensation pressure is 2. l lMPa
- the critical temperature is 85.6 ° C.
- a fusible plug with a temperature of about 90-95 ° C is used, and the condensing pressure is 3.06 MPa for the fusible plug selected as the refrigerant for the refrigeration system using R410a, which is an HCFC refrigerant with better compression efficiency.
- the critical temperature is 71.5 ° C, and in order for the critical temperature of the refrigerant to rise, the design of the fusible plug must be about 70-75 ° C and the refrigeration system must be designed.
- the fusible stopper is collected together with the refrigeration apparatus.
- the refrigeration apparatus is discarded, it is a matter of course that treatment in accordance with the regulations is required.
- the movement to protect the global environment has become active, and there is a tendency to eliminate harmful components from parts used in equipment such as refrigeration equipment.
- Cd and Pb components are subject to regulation because they adversely affect the human body.
- Patent Document 2 JP 2001-214985 A
- Patent Document 3 Japanese Patent Laid-Open No. 2003-130240 Disclosure of the invention
- Solder alloys containing Pb and Cd which are harmful substances, have been used for fusible stoppers used as safety devices for refrigeration equipment.
- the movement to protect the global environment has become active, and there is a tendency to eliminate harmful components from parts used in equipment such as refrigeration equipment.
- Cd and Pb components are subject to regulation because they adversely affect the human body.
- a tin (Sn) -indium (In) -bismuth (Bi) alloy has been disclosed as described in Patent Document 1 above.
- This alloy for fusible plugs is used as a safety device for refrigeration equipment with poor creep characteristics at low temperatures, and the alloy may be extruded by pressure over time, and after a certain period of time, the refrigeration equipment It was necessary to stop and replace the soluble stopper.
- the present invention does not contain harmful components such as Cd and Pb, and even when used for a long time as a safety device of a refrigeration apparatus, the soluble stopper does not extrude the alloy, creep characteristics, etc.
- the aim is to provide a fusible stopper with high mechanical strength.
- the alloy that melts at about 70-75 ° C of the present invention is an alloy for fusible plugs characterized by SnO.l- 2.0 mass%, Bi31-37 mass%, and the balance In force. Further, the alloy that melts at about 90-95 ° C of the present invention is a soluble plug alloy characterized by having Zn-0.4 mass%, Bi43-55 mass%, and the balance In force.
- the fusible plug alloy of the present invention does not contain any harmful components such as Cd and Pb, and the fusible plug power alloy is not pushed out. It can be used for a long time without changing the fusible stopper.
- the fusible plug is dependent on the melting temperature of the fusible plug alloy.
- the pressure is constantly applied to the refrigerator, so if the mechanical strength such as creep characteristics is weak, the safety device Don't use it.
- the Bi-In-Sn alloy which is an alloy having a solid phase peak temperature of about 70-75 ° C according to the present invention, if the Sn content is less than 0.1% by mass, the mechanical strength of the alloy itself is low, so the pressure resistance test There is a drawback that the amount of popping out of the alloy exceeds the specified amount. If the Sn content exceeds 2.0% by mass, the solid phase temperature of the Bi-In-Sn alloy decreases, so the melting temperature of the alloy is used.
- the Sn content must be 0.1 to 2.0% by mass. If the Bi content is less than 31% by mass, the liquidus temperature of the Bi-In-Sn alloy will rise too much, resulting in poor meltability of the alloy and failing to pass the melting test. If the amount increases, the eutectic point of the Sn-In alloy will be lost, and the liquidus temperature will rise too high, resulting in poor meltability of the alloy and failing to pass the melting test. Therefore, the Bi-In-Sn alloy of the present invention must have a Bi content of 31-37% by mass.
- SnO.l 2.0% by mass, Bi31-37% by mass, and the balance of In make it possible to obtain a soluble plug alloy with strong creep characteristics in the operating temperature range of 70-75 ° C. Become.
- an alloy of SnO. 5 mass%, Bi 35 mass%, and the balance In can be used to obtain an alloy for fusible stoppers with the most characteristic tape characteristics in the operating temperature range.
- the Bi-In-Zn alloy which is an alloy having a solid phase / peak temperature of about 90-95 ° C of the present invention
- the amount of Zn is less than 0.05% by mass
- Mechanical strength is low!
- the amount of popping out of the alloy exceeds the specified amount in the test.
- the amount of Zn exceeds 0.4% by mass
- the solid-phase temperature of the Bi-In-Zn alloy decreases, so the melting temperature of the alloy is used.
- the creep characteristics in the operating temperature range are deteriorated as the temperature range approaches. Therefore, in the Bi-In-Zn alloy of the present invention, the Zn content must be 0.05-0.4 mass%.
- the Bi-In-Zn alloy of the present invention must have a Bi content of 43 to 55% by mass. In the present invention, it is possible to obtain a soluble plug alloy having strong creep characteristics by using an alloy of Zn 0.05-0.4 mass%, Bi43-55 mass%, and the balance In.
- the total amount of strength-added elements is preferably 2.0% by mass or less.
- the most preferable addition amounts of each strength addition element are CuO.l—1.0 mass%, Sb0.2 to 2.0 mass%, GeO.l—1.0 mass%, AgO.l—0.7 mass%, AuO.l—0.6 mass% , Zn0.2- 0.6 mass 0/0, a Ni0.02- 0.1 0/0, La group 0.01 0.1 wt%, than this is not a small amount appeared strength improving effect of the alloy, further added would raise the liquidus temperature. Also, it will not operate at the target temperature range.
- the fusible stopper of the present invention is obtained by melting a Bi-In-Sn alloy and a Bi-In-Zn alloy and sealing them in a blank material. Applicable to fusible stoppers such as type, flare tube type and porous type.
- the soluble stopper alloy and the soluble stopper of the present invention are produced and their characteristics are compared.
- the soluble alloys shown in Table 1 and Table 2 were prepared, and the heating curves by differential thermal analysis of each alloy composition were measured to determine the end point of the endothermic peak, the lowest end point of the endothermic peak, and the end point of the endothermic peak.
- the solid phase temperature, peak temperature, and liquid phase temperature were measured.
- Tables 1 and 2 show the melting temperature of each alloy.
- Comparative Examples 4 and 5 are soluble stopper alloys of Patent Documents 2 and 3.
- the one-screw type fusible plug blank 1 shown in Fig. 1 is filled with the fusible plug alloys shown in Tables 1 and 2 to make fusible plugs, and the creep characteristics for each alloy composition ( The pressure resistance test) and the operating temperature of the fusible stopper were measured.
- a fusible stopper having a total length of 28 mm and an inner diameter of the tip of S3 mm was used.
- Table 1 and Table 2 show the lengths of the alloys stretched during the pressure test, and Fig. 2 shows typical photographs of the alloy compositions of the examples and comparative examples in Table 1 measured at 65 ° C. Indicates. In the photograph, 1 is the result of the soluble stopper of Example 8, 2 is the result of the soluble stopper of Comparative Example 4, and 3 is the result of the soluble stopper of Comparative Example 5.
- Soluble plug force in the water tank Measure the temperature at which air is released at a stroke as the operating temperature.
- the soluble plugs 2 and 3 of the comparative example have lower solid phase temperatures than the soluble plugs of the examples, so that the soluble plug alloy escapes and stretches. ing.
- the fusible plug 3 of Comparative Example 5 became a semi-molten body by heating at 65 ° C. under the test conditions.
- the fusible plug 1 according to the embodiment of the present invention does not extend for the fusible plug with which the fusible plug alloy is little pulled out.
- the fusible plug of the present invention operates at about 70-75 ° C and about 90-95 ° C, and the fusible plug alloy has good low-temperature creep characteristics. Even if added, the fusible plug alloy does not come out of the blank material force, so that when used in a protective device for a refrigeration apparatus, it has an effect not found in conventional fusible plugs that can be used for a long period of time.
- the fusible plug alloy of the present invention can be used as an alloy for a sprinkler that is constantly subjected to pressure in the same manner as a fusible plug used only for a fusible plug used in a protective device of a refrigeration apparatus.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Safety Valves (AREA)
- Fuses (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006501330A JP4043042B2 (ja) | 2004-11-24 | 2004-11-24 | 可溶栓 |
CN2004800444609A CN101065604B (zh) | 2004-11-24 | 2004-11-24 | 易熔塞用合金及易熔塞 |
PCT/JP2004/017376 WO2006057029A1 (ja) | 2004-11-24 | 2004-11-24 | 可溶栓用合金および可溶栓 |
KR1020097027230A KR100957736B1 (ko) | 2004-11-24 | 2004-11-24 | 가용 플러그용 합금 및 가용 플러그 |
EP04822441.4A EP1821015B1 (en) | 2004-11-24 | 2004-11-24 | Fusible plug |
EP13150633.9A EP2623826B1 (en) | 2004-11-24 | 2004-11-24 | Fusible Plug |
US11/667,959 US9175782B2 (en) | 2004-11-24 | 2004-11-24 | Alloy for a fusible plug and a fusible plug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/017376 WO2006057029A1 (ja) | 2004-11-24 | 2004-11-24 | 可溶栓用合金および可溶栓 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13150633.9A Previously-Filed-Application EP2623826B1 (en) | 2004-11-24 | 2004-11-24 | Fusible Plug |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006057029A1 true WO2006057029A1 (ja) | 2006-06-01 |
Family
ID=36497778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/017376 WO2006057029A1 (ja) | 2004-11-24 | 2004-11-24 | 可溶栓用合金および可溶栓 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9175782B2 (ja) |
EP (2) | EP1821015B1 (ja) |
JP (1) | JP4043042B2 (ja) |
KR (1) | KR100957736B1 (ja) |
CN (1) | CN101065604B (ja) |
WO (1) | WO2006057029A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010117065A (ja) * | 2008-11-12 | 2010-05-27 | Mitsubishi Electric Corp | 可溶栓の製造方法 |
JP2011202874A (ja) * | 2010-03-25 | 2011-10-13 | Mitsubishi Electric Corp | 可溶栓用合金およびそれを用いた可溶栓並びに冷凍装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007015291A1 (ja) | 2005-08-02 | 2007-02-08 | Senju Metal Industry Co., Ltd | スプリンクラーヘッド |
DE102013001992B4 (de) | 2013-02-06 | 2014-09-04 | Astrium Gmbh | Ventil zum Öffnen einer Fluidleitung |
CN105587666B (zh) * | 2014-10-24 | 2018-11-30 | 山东省章丘鼓风机股份有限公司 | 一种罗茨风机 |
KR101686624B1 (ko) * | 2015-07-14 | 2016-12-14 | (주)성덕피앤이 | 풍선디스크 밸브 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001214985A (ja) * | 2000-01-31 | 2001-08-10 | Mitsubishi Electric Corp | 可溶栓用低温溶融合金、この合金を用いた可溶栓、および、この可溶栓を用いた冷凍装置 |
JP2001325867A (ja) * | 2000-05-18 | 2001-11-22 | Sorudaa Kooto Kk | 温度ヒューズおよび温度ヒューズ素子用線材 |
JP2002115940A (ja) * | 2000-10-06 | 2002-04-19 | Senju Sprinkler Kk | 可溶栓 |
JP2002310543A (ja) * | 2001-04-06 | 2002-10-23 | Mitsubishi Electric Corp | 可溶栓およびその製造方法 |
JP2003013165A (ja) * | 2001-06-28 | 2003-01-15 | Sorudaa Kooto Kk | 温度ヒューズ用可溶性合金および温度ヒューズ用線材および温度ヒューズ |
JP2003130240A (ja) * | 2001-10-29 | 2003-05-08 | Mitsubishi Electric Corp | 可溶栓、その製造方法及びこれを備えた冷凍装置 |
JP2004176106A (ja) * | 2002-11-26 | 2004-06-24 | Uchihashi Estec Co Ltd | 合金型温度ヒューズ及び温度ヒューズエレメント用材料 |
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CN2068182U (zh) * | 1990-05-25 | 1990-12-26 | 大连液力偶合器厂 | 防喷易熔塞 |
US5076313A (en) * | 1990-09-06 | 1991-12-31 | Bottum Jr Edward W | Fusible plug structure |
JP3224185B2 (ja) * | 1994-09-29 | 2001-10-29 | 富士通株式会社 | はんだ合金及びはんだ粉末及びはんだペースト及びプリント配線板及び電子部品及びはんだ付け方法及びはんだ付け装置 |
JP2001239392A (ja) * | 2000-02-29 | 2001-09-04 | Mitsubishi Electric Corp | 鉛フリーはんだ、並びにこれを用いたはんだ接合部とはんだ接合法 |
JP4369008B2 (ja) * | 2000-04-07 | 2009-11-18 | 内橋エステック株式会社 | 合金型温度ヒュ−ズ |
JP2002081599A (ja) * | 2000-09-06 | 2002-03-22 | Senju Sprinkler Kk | 溶 栓 |
JP2003034831A (ja) * | 2001-07-24 | 2003-02-07 | Nec Schott Components Corp | 温度ヒューズ及びその可溶合金 |
KR101088256B1 (ko) * | 2003-05-29 | 2011-11-30 | 파나소닉 주식회사 | 온도 퓨즈용 소자, 온도 퓨즈 및 이를 사용한 전지 |
US20060067852A1 (en) | 2004-09-29 | 2006-03-30 | Daewoong Suh | Low melting-point solders, articles made thereby, and processes of making same |
WO2007015291A1 (ja) * | 2005-08-02 | 2007-02-08 | Senju Metal Industry Co., Ltd | スプリンクラーヘッド |
-
2004
- 2004-11-24 EP EP04822441.4A patent/EP1821015B1/en active Active
- 2004-11-24 EP EP13150633.9A patent/EP2623826B1/en active Active
- 2004-11-24 KR KR1020097027230A patent/KR100957736B1/ko active IP Right Grant
- 2004-11-24 WO PCT/JP2004/017376 patent/WO2006057029A1/ja active Application Filing
- 2004-11-24 JP JP2006501330A patent/JP4043042B2/ja active Active
- 2004-11-24 CN CN2004800444609A patent/CN101065604B/zh active Active
- 2004-11-24 US US11/667,959 patent/US9175782B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001214985A (ja) * | 2000-01-31 | 2001-08-10 | Mitsubishi Electric Corp | 可溶栓用低温溶融合金、この合金を用いた可溶栓、および、この可溶栓を用いた冷凍装置 |
JP2001325867A (ja) * | 2000-05-18 | 2001-11-22 | Sorudaa Kooto Kk | 温度ヒューズおよび温度ヒューズ素子用線材 |
JP2002115940A (ja) * | 2000-10-06 | 2002-04-19 | Senju Sprinkler Kk | 可溶栓 |
JP2002310543A (ja) * | 2001-04-06 | 2002-10-23 | Mitsubishi Electric Corp | 可溶栓およびその製造方法 |
JP2003013165A (ja) * | 2001-06-28 | 2003-01-15 | Sorudaa Kooto Kk | 温度ヒューズ用可溶性合金および温度ヒューズ用線材および温度ヒューズ |
JP2003130240A (ja) * | 2001-10-29 | 2003-05-08 | Mitsubishi Electric Corp | 可溶栓、その製造方法及びこれを備えた冷凍装置 |
JP2004176106A (ja) * | 2002-11-26 | 2004-06-24 | Uchihashi Estec Co Ltd | 合金型温度ヒューズ及び温度ヒューズエレメント用材料 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010117065A (ja) * | 2008-11-12 | 2010-05-27 | Mitsubishi Electric Corp | 可溶栓の製造方法 |
JP2011202874A (ja) * | 2010-03-25 | 2011-10-13 | Mitsubishi Electric Corp | 可溶栓用合金およびそれを用いた可溶栓並びに冷凍装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101065604B (zh) | 2010-08-18 |
US20080131309A1 (en) | 2008-06-05 |
EP1821015A1 (en) | 2007-08-22 |
EP2623826A1 (en) | 2013-08-07 |
KR20100018590A (ko) | 2010-02-17 |
EP2623826B1 (en) | 2016-04-06 |
KR100957736B1 (ko) | 2010-05-12 |
CN101065604A (zh) | 2007-10-31 |
US9175782B2 (en) | 2015-11-03 |
EP1821015A4 (en) | 2012-11-28 |
JP4043042B2 (ja) | 2008-02-06 |
JPWO2006057029A1 (ja) | 2008-06-05 |
EP1821015B1 (en) | 2015-04-01 |
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