M6c2

20問 • 1年前

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通報

問題一覧

The Bayer process to convert

bauxite to alumina

Duralumin

2000 series of aluminum alloy

Primary aircraft structure (skin and spars etc.)

made of C-110M titanium

The ‘Nimonic’ series of alloys are

high temperature , corrosion resistance alloys

The melting point of titanium is

1668˚C

The two classes of aluminum alloy is done to

Wrought (worked) and Cast (moulded)

The mechanical properties of pure aluminium are

silvery white metal which is soft and ductile.

Adding other elements to aluminum alloys , such as copper ,manganese or magnesium

decrease corrosion resistance of the aluminum

Clad aluminum alloy (alclad)

5% of alloy thickness

The heat treatment of clad aluminum alloys must not be carried out more than

three (3) times

The purpose of rivets Refrigeration

to make rivets the soft formable condition

The identification No. of zinc in aluminum alloy is

The 6000 series of aluminum alloy principle alloying element of

magnesium and silicon

Refrigeration of heat-treated aluminum alloys is sometimes done in order to

delay the precipitation process

For aluminum alloy, the maximum time between removal from heat treatment furnace and quenching must be not more than

7 Seconds

A salt bath is a heated tank containing mineral salts , typically

90% nitrate and 10% sodium nitrate

Quenching is required to be done in hot or boiling water

to reduce quenching stress

Aluminium Solution heat treating is

the process of heating aluminium at prescribed temperature for a prescribed time and then cooling rapidly usually by quenching in water.

Precipitation heat treatment of aluminum alloy is done to

speed up age hardening process

Following solution treatment aluminum alloy can be placed into service

after 5 days.

mod5 training

mod5 training

M6c1

M6c1

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M6c4

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M7c1

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M10c1

M10c1

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M7c5

問題一覧

The Bayer process to convert

bauxite to alumina

Duralumin

2000 series of aluminum alloy

Primary aircraft structure (skin and spars etc.)

made of C-110M titanium

The ‘Nimonic’ series of alloys are

high temperature , corrosion resistance alloys

The melting point of titanium is

1668˚C

The two classes of aluminum alloy is done to

Wrought (worked) and Cast (moulded)

The mechanical properties of pure aluminium are

silvery white metal which is soft and ductile.

Adding other elements to aluminum alloys , such as copper ,manganese or magnesium

decrease corrosion resistance of the aluminum

Clad aluminum alloy (alclad)

5% of alloy thickness

The heat treatment of clad aluminum alloys must not be carried out more than

three (3) times

The purpose of rivets Refrigeration

to make rivets the soft formable condition

The identification No. of zinc in aluminum alloy is

The 6000 series of aluminum alloy principle alloying element of

magnesium and silicon

Refrigeration of heat-treated aluminum alloys is sometimes done in order to

delay the precipitation process

For aluminum alloy, the maximum time between removal from heat treatment furnace and quenching must be not more than

7 Seconds

A salt bath is a heated tank containing mineral salts , typically

90% nitrate and 10% sodium nitrate

Quenching is required to be done in hot or boiling water

to reduce quenching stress

Aluminium Solution heat treating is

the process of heating aluminium at prescribed temperature for a prescribed time and then cooling rapidly usually by quenching in water.

Precipitation heat treatment of aluminum alloy is done to

speed up age hardening process

Following solution treatment aluminum alloy can be placed into service

after 5 days.