Composite multilevel Y2O3 powder crucible and method for producing the same with isostatic pressing technique
A crucible and process technology, applied in the field of metal smelting equipment, can solve the problems of difficult modeling of yttrium oxide ceramics, large volume change, lowering the use temperature of products, etc., and achieve the effects of simple modeling, high smoothness, and increased density
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[0047] Example 1: Make a composite multi-level Y that can melt 3Kg Nb-16Si-17Cr alloy 2 O 3 Powder crucible (the weight of the crucible is 2Kg)
[0048] Compound multi-level Y 2 O 3 The size of the powder crucible: the inner diameter of the crucible is 12cm, and the height of the crucible is 17cm.
[0049] The binder is a polyvinyl alcohol solution with a concentration of 10% by mass.
[0050] In this example, a composite multi-level Y is made by isostatic pressing process 2 O 3 The steps of powder crucible are:
[0051] The first step: preparation of crucible raw materials
[0052] Weigh 30g of the first level Y according to the target component of the crucible's self-weight 2Kg 2 O 3 Powder, 70g second level Y 2 O 3 Powder material, 500g third level Y 2 O 3 Powder, 600g of the fourth grade Y 2 O 3 Powder, 800g fifth grade Y 2 O 3 After the powder is mechanically stirred evenly, a composite multi-level Y is obtained 2 O 3 Powder; then in the composite multi-level Y 2 O 3 Add 10...
Example Embodiment
[0066] Example 2: Make a composite multi-level Y that can melt 2.5Kg Ti-6Al-4V alloy 2 O 3 Powder crucible (the weight of the crucible is 2Kg)
[0067] Compound multi-level Y 2 O 3 The size of the powder crucible: the inner diameter of the crucible is 12cm, and the height of the crucible is 17cm.
[0068] The binder is: silica sol.
[0069] In this example, a composite multi-level Y is made by isostatic pressing process 2 O 3 The steps of powder crucible are:
[0070] The first step: preparation of crucible raw materials
[0071] Weigh 40g of the first-level Y according to the target component of the crucible's self-weight 2Kg 2 O 3 Powder material, 60g second level Y 2 O3 Powder material, 450g third level Y 2 O 3 Powder, 700g of the fourth grade Y 2 O 3 Powder, 750g fifth grade Y 2 O 3 After the powder is mechanically stirred evenly, a composite multi-level Y is obtained 2 O 3 Powder; then in the composite multi-level Y 2 O 3 Add 80ml of binder to the powder and stir it evenly ...
Example Embodiment
[0082] Example 3: Make a composite multi-level Y of Ti-47Al alloy that can melt 8Kg 2 O 3 Powder crucible (the weight of the crucible is 4Kg)
[0083] Compound multi-level Y 2 O 3 The size of the powder crucible: the inner diameter of the crucible is 12cm, and the height of the crucible is 50cm.
[0084] The binder is (group A binder): 130 ml of polyvinyl alcohol solution with a mass percentage concentration of 10% and 30 ml of absolute ethanol.
[0085] In this example, a composite multi-level Y is made by isostatic pressing process 2 O 3 The steps of powder crucible are:
[0086] The first step: preparation of crucible raw materials
[0087] Weigh 80g of the first-level Y according to the target component of the crucible's self-weight 4Kg 2 O 3 Powder, 120g second level Y 2 O 3 Powder, 1000g third level Y 2 O 3 Powder, 1000g of the fourth grade Y 2 O 3 Powder, 1800g fifth grade Y 2 O 3 After the powder is mechanically stirred evenly, a composite multi-level Y is obtained 2 O 3 ...
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