Spiral Motlakase Resistor Nicr Alloy 1 – 5 Mohm Bakeng sa Air Conditioner Heating Elements
Tlhaloso ea 1.Material General
Constantanke motsoako oa koporo-nickel hape o tsejoa e leEureka,Tsoela pele, leSekepe. Hangata e na le 55% koporo le 45% nickel. Tšobotsi ea eona e ka sehloohong ke resistivity ea eona, e leng kamehla ho feta mefuta e mengata ea mocheso. Li-alloys tse ling tse nang le li-coefficients tse tšoanang tsa mocheso o tlase lia tsebahala, joalo ka manganin (Cu86Mn12Ni2).
Bakeng sa tekanyo ea mefuta e meholo haholo, 5% (50 000 microstrian) kapa ka holimo, annealed constantan (P alloy) ke lisebelisoa tsa marang-rang tse khethiloeng ka tloaelo. Constantan ka mokhoa ona o monate haholoductile; 'me, ka li-gauge tsa bolelele ba lisenthimithara tse 0.125 (3.2 mm) le ho feta, li ka hatelloa ho>20%. Leha ho le joalo, ho lokela ho hopoloa hore tlas'a mathata a phahameng a cyclic alloy ea P e tla bontša phetoho e sa feleng ea ho hanyetsa ka potoloho e 'ngoe le e' ngoe, 'me e etse hore ho be le phetoho e tšoanang.zeroho fetoha ha sekhahla sa khatello. Ka lebaka la tšobotsi ena, le tšekamelo ea ho hloleha ha marang-rang pele ho nako ka ho tsitsisa khafetsa, P alloy ha e khothalletsoe bakeng sa ts'ebetso ea cyclic strain. P alloy e fumaneha ka linomoro tsa STC tsa 08 le 40 bakeng sa tšebeliso ea litšepe le polasetiki, ka ho latellana.
2. Kenyelletso ea Selemo le likopo
Seliba sa spiral torsion, kapa hairspring, ka oacheng ea alamo.
Sediba sa boithatelo. Ka tlas'a khatello, li-coil lia thella holim'a tse ling, kahoo li fana ka maeto a malelele.
Liliba tse otlolohileng tsa tanka ea Stuart
Khatello e hlaha ka har'a sesebelisoa sa molumo o mennoeng.
The torsion bar e sothehileng tlas'a mojaro
Lekhasi le hlaha terakeng
Li-Spring li ka aroloa ho latela hore na matla a boima a sebelisoa joang ho tsona:
Tension / extension spring - selemo se etselitsoe ho sebetsa ka mojaro oa tsitsipano, kahoo selemo se otlolla ha mojaro o sebelisoa ho eona.
Compression spring - e etselitsoe ho sebetsa ka mojaro oa khatello, kahoo selemo se ntse se khutsufala ha mojaro o sebelisoa ho eona.
Selemo sa torsion - ho fapana le mefuta e ka holimo eo mojaro e leng matla a axial, mojaro o sebelisoang ho torsion spring ke torque kapa matla a sothehileng, 'me qetello ea selemo e potoloha ka lehlakoreng ha mojaro o sebelisoa.
Nako eohle ea selemo - mojaro o tšehetsoeng o lula o tšoana nakong eohle ea ho kheloha.
Ho feto-fetoha ha selemo - ho hanyetsa ha coil ho laela ho fapana nakong ea khatello.
Ho satalla ho feto-fetohang selemo - ho hanyetsa ha coil ho laela ho ka fetoha ka mokhoa o fapaneng ka mohlala ka tsamaiso ea taolo, mefuta e meng ea liliba tsena le eona e fapana bolelele ba eona ka hona e fana ka bokhoni ba ho sebetsa.
Li ka boela tsa aroloa ho latela sebōpeho sa tsona:
Flat spring - mofuta ona o entsoe ka tšepe e sephara ea selemo.
Setsi sa selemo se entsoeng ka mochine - mofuta ona oa selemo o etsoa ka mochine oa bar o nang le lathe le / kapa opereishene ea ho sila ho e-na le ts'ebetso ea ho kopanya. Kaha e entsoe ka mochine, selemo se ka 'na sa kenyelletsa likarolo ho phaella ho ntho ea elastic. Liliba tse entsoeng ka mochini li ka etsoa maemong a tloaelehileng a boima ba khatello / katoloso, torsion, jj.
Selemo sa serpentine - zig-zag ea terata e teteaneng - hangata e sebelisoa ho upholstery / thepa ea morao-rao.
3.Chemical Composition le Thepa e ka Sehloohong ea Cu-Ni Low Resistance Alloy
PropertiesGrade | CuNi1 | CuNi2 | HoNi6 | HoNi8 | CuMn3 | CuNi10 | |
Sebopeho sa Lik'hemik'hale Tse ka Sehloohong | Ni | 1 | 2 | 6 | 8 | _ | 10 |
Mn | _ | _ | _ | _ | 3 | _ | |
Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
Thempereichara e Tsoelang Pele ea Tšebeletso (oC) | 200 | 200 | 200 | 250 | 200 | 250 | |
Resisivity ho 20oC (Ωmm2/m) | 0.03 | 0.05 | 0.10 | 0.12 | 0.12 | 0.15 | |
Boima ba 'mele(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | |
Thermal Conductivity(α×10-6/oC) | <100 | <120 | <60 | <57 | <38 | <50 | |
Tensile Strength(Mpa) | ≥210 | ≥220 | ≥250 | ≥270 | ≥290 | ≥290 | |
EMF vs Cu(μV/oC)(0~100oC) | -8 | -12 | -12 | -22 | _ | -25 | |
Hoo e ka bang Melting Point(oC) | 1085 | 1090 | 1095 | 1097 | 1050 | 1100 | |
Sebopeho sa Micrographic | austenite | austenite | austenite | austenite | austenite | austenite | |
Thepa ea Magnetic | eseng | eseng | eseng | eseng | eseng | eseng | |
PropertiesGrade | CuNi14 | HoNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 | |
Sebopeho sa Lik'hemik'hale Tse ka Sehloohong | Ni | 14 | 19 | 23 | 30 | 34 | 44 |
Mn | 0.3 | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | |
Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
Thempereichara e Tsoelang Pele ea Tšebeletso (oC) | 300 | 300 | 300 | 350 | 350 | 400 | |
Resisivity ho 20oC (Ωmm2/m) | 0.20 | 0.25 | 0.30 | 0.35 | 0.40 | 0.49 | |
Boima ba 'mele(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
Thermal Conductivity(α×10-6/oC) | <30 | <25 | <16 | <10 | <0 | <-6 | |
Tensile Strength(Mpa) | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 | |
EMF vs Cu(μV/oC)(0~100oC) | -28 | -32 | -34 | -37 | -39 | -43 | |
Hoo e ka bang Melting Point(oC) | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | |
Sebopeho sa Micrographic | austenite | austenite | austenite | austenite | austenite | austenite | |
Thepa ea Magnetic | eseng | eseng | eseng | eseng | eseng | eseng |