JPH0476005B2 - - Google Patents

Info

Publication number

JPH0476005B2

JPH0476005B2 JP25620886A JP25620886A JPH0476005B2 JP H0476005 B2 JPH0476005 B2 JP H0476005B2 JP 25620886 A JP25620886 A JP 25620886A JP 25620886 A JP25620886 A JP 25620886A JP H0476005 B2 JPH0476005 B2 JP H0476005B2

Authority

JP

Japan

Prior art keywords

core material

valve

core

manufacturing

hot

Prior art date

1986-10-28

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 239000000463 material Substances 0.000 claims description 39
• 239000011162 core material Substances 0.000 claims description 35
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
• 238000004519 manufacturing process Methods 0.000 claims description 13
• 238000000034 method Methods 0.000 claims description 12
• 229910002804 graphite Inorganic materials 0.000 claims description 8
• 239000010439 graphite Substances 0.000 claims description 8
• 239000010959 steel Substances 0.000 claims description 6
• 229910000831 Steel Inorganic materials 0.000 claims description 5
• 238000005242 forging Methods 0.000 claims description 5
• 238000000465 moulding Methods 0.000 claims description 5
• 239000000843 powder Substances 0.000 claims description 5
• 229910052799 carbon Inorganic materials 0.000 claims description 4
• 239000000919 ceramic Substances 0.000 claims description 4
• 238000001192 hot extrusion Methods 0.000 claims description 4
• 239000004576 sand Substances 0.000 claims description 3
• 230000005484 gravity Effects 0.000 claims description 2
• 238000010438 heat treatment Methods 0.000 claims description 2
• 238000003466 welding Methods 0.000 description 8
• 230000000694 effects Effects 0.000 description 3
• 238000001125 extrusion Methods 0.000 description 3
• 238000005266 casting Methods 0.000 description 2
• 238000002485 combustion reaction Methods 0.000 description 2
• 238000010586 diagram Methods 0.000 description 2
• 238000005553 drilling Methods 0.000 description 2
• 229910052751 metal Inorganic materials 0.000 description 2
• 239000002184 metal Substances 0.000 description 2
• 239000002994 raw material Substances 0.000 description 2
• 239000002699 waste material Substances 0.000 description 2
• 229910000838 Al alloy Inorganic materials 0.000 description 1
• 229910000851 Alloy steel Inorganic materials 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
• 229910000861 Mg alloy Inorganic materials 0.000 description 1
• 229910001069 Ti alloy Inorganic materials 0.000 description 1
• 230000002411 adverse Effects 0.000 description 1
• 230000006835 compression Effects 0.000 description 1
• 238000007906 compression Methods 0.000 description 1
• 238000001816 cooling Methods 0.000 description 1
• 238000010894 electron beam technology Methods 0.000 description 1
• 239000011796 hollow space material Substances 0.000 description 1
• 238000007731 hot pressing Methods 0.000 description 1
• 150000002739 metals Chemical class 0.000 description 1
• 238000005121 nitriding Methods 0.000 description 1
• 238000007789 sealing Methods 0.000 description 1
• 229910052708 sodium Inorganic materials 0.000 description 1
• 239000011734 sodium Substances 0.000 description 1
• 238000009721 upset forging Methods 0.000 description 1
• 239000013585 weight reducing agent Substances 0.000 description 1