Uns K93600 Invar36 Lipine pololei hoʻonui i ka huila paʻa
(Inoa maʻamau: Invar, FeNi36, Invar Standard, Vacodil36)
4J36 (Invar), i ʻike nui ʻia ʻo FeNi36 (64FeNi i ka US), he hao nickel-hao i kaulana no kona helu haʻahaʻa haʻahaʻa o ka hoʻonui wela (CTE a i ʻole α).
Hoʻohana ʻia ʻo 4J36 (Invar) i kahi e koi ʻia ai ke kūpaʻa kiʻekiʻe, e like me nā mea kani pololei, nā uaki, nā anana seismic creep, nā kiʻi pale pale kīwī, nā pahu i loko o nā kaʻa, a me nā wati antimagnetic. Ma ke ana 'āina, i ka wā e ho'okō 'ia ai ka pae ki'eki'e o ka pae ki'eki'e, ua hana 'ia nā limahana Papa (leveling rod) me Invar, ma kahi o ka lā'au, fiberglass, a me nā metala 'ē a'e. Ua hoʻohana ʻia nā struts invar i kekahi mau pistons e kaupalena i ko lākou hoʻonui ʻana i ka wela i loko o kā lākou cylinders.
4J36 hoʻohana i ka oxyacetylene welding, uila arc welding, welding a me nā ʻano hana wili. No ka mea e pono ke pale ʻia ka coefficient o ka hoʻonui a me ka hoʻohui kemika o ka huila ma muli o ke kumu o ka kuʻi ʻana i ka hoʻololi ʻana i ka haku mele, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka Argon arc welding welding filler metala ʻoi aku ka maikaʻi o 0.5% a 1.5% titanium, i mea e e ho'ēmi i ka porosity weld a me ka māwae.
haku mele maʻamau%
Ni | 35~37.0 | Fe | ʻO Bal. | Co | - | Si | ≤0.3 |
Mo | - | Cu | - | Cr | - | Mn | 0.2~0.6 |
C | ≤0.05 | P | ≤0.02 | S | ≤0.02 |
Coefficient o ka hoonui
θ/ºC | α1/10-6ºC-1 | θ/ºC | α1/10-6ºC-1 |
20~-60 | 1.8 | 20~250 | 3.6 |
20~-40 | 1.8 | 20~300 | 5.2 |
20~-20 | 1.6 | 20~350 | 6.5 |
20~-0 | 1.6 | 20~400 | 7.8 |
20~50 | 1.1 | 20~450 | 8.9 |
20~100 | 1.4 | 20~500 | 9.7 |
20~150 | 1.9 | 20~550 | 10.4 |
20~200 | 2.5 | 20~600 | 11.0 |
ʻO ka mānoanoa (g/cm3) | 8.1 |
Hiki ke pale uila ma 20ºC(OMmm2/m) | 0.78 |
ʻO ke kumu wela o ka resistivity(20ºC~200ºC)X10-6/ºC | 3.7~3.9 |
Ka hoʻoili wela, λ/ W/(m*ºC) | 11 |
Lae Curie Tc/ ºC | 230 |
Elastic Modulus, E/ Gpa | 144 |
ʻO ke kaʻina hana wela | |
Hoʻopiʻi no ka hoʻomaha pilikia | Wehe ʻia i 530~550ºC a paʻa i 1~2 hola. Ke anu |
annealing | I mea e hoʻopau ai i ka paʻakikī, e lawe ʻia i waho ma ke kaʻina hana huki anu. Pono e hoʻomehana ʻia ka Annealing i ka 830 ~ 880ºC i loko o ka ʻōpala, paʻa 30 min. |
ʻO ke kaʻina hoʻokūpaʻa |
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Hoʻomalu |
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ʻAno Mechanical maʻamau
Ikaika U'i | ʻO ka elongation |
Mpa | % |
641 | 14 |
689 | 9 |
731 | 8 |
Ka mea wela o ka resistivity
Kaulana wela, ºC | 20~50 | 20~100 | 20~200 | 20~300 | 20~400 |
aR/ 103 *ºC | 1.8 | 1.7 | 1.4 | 1.2 | 1.0 |