SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Metal Oxide Varistor: Zinc Oxide, 0.5 % Bismuth Oxide, 2.5 % Manganese Dioxide, 1350 °C (Masuyama 1972, Ex. 2)
Ed

Imeundwa na

Ed

28. Oktoba 2026FI
4
0
0
0
0

Metal Oxide Varistor: Zinc Oxide, 0.5 % Bismuth Oxide, 2.5 % Manganese Dioxide, 1350 °C (Masuyama 1972, Ex. 2)

Masuyama, Matsuoka and Nishi found that adding a second oxide to zinc oxide and bismuth oxide changes the varistor a great deal. This is their Example 2 with manganese dioxide: 97 % zinc oxide, 0.5 % bismuth oxide and 2.5 % manganese dioxide by moles, sintered at 1350 °C. The disc measured a C-value of 140 at 1 mA and a nonlinearity exponent n of 4.3. Source: T. Masuyama, M. Matsuoka and T. Nishi (Matsushita), US 3,663,458 (1972), Example 2. Unknown: how the aluminium is sprayed on and what the silver paint is. The 10 g batch is our arithmetic. Picture: the patent's drawing.
Juu
1 day

Maagizo

1

Weigh 97 : 0.5 : 2.5 and wet-mill 5 hours

Mix zinc oxide, bismuth oxide and manganese dioxide 97 : 0.5 : 2.5 by moles. Ours, for 10 g: 9.46 g zinc oxide, 0.279 g bismuth oxide, 0.26 g manganese dioxide (our arithmetic). Mill wet for 5 hours, then dry. Unknown: the milling liquid.

Vifaa kwa hatua hii:

Poda ya oksidi ya zinkiPoda ya oksidi ya zinki9.46 g
Oksidi ya bismuthiOksidi ya bismuthi0.279 g
Dioksidi ya manganizi (pairolusiti)Dioksidi ya manganizi (pairolusiti)0.26 g

Zana zinazohitajika:

Mizani ya mizani-mbiliMizani ya mizani-mbili
Kinu cha mipira ya chumaKinu cha mipira ya chuma
Tanuri la kukaushiaTanuri la kukaushia
2

Press discs 13 mm by 2.5 mm

Press the powder in a mould into discs 13 mm across and 2.5 mm thick at 340 kg/cm², as in Example 1.

Zana zinazohitajika:

Mashine ya kubana ya haidrolikiMashine ya kubana ya haidroliki
Kalibu ya kubana diskiKalibu ya kubana diski
Kalipa ya VernierKalipa ya Vernier
3

Sinter 1 hour at 1350 °C and furnace-cool

Sinter the discs in air for 1 hour at 1350 °C, then let them cool in the furnace to room temperature (about 15-30 °C).

Zana zinazohitajika:

Tanuri ya muffleTanuri ya muffle
4

Lap to 10 mm by 1.5 mm

Lap both faces with 600-mesh silicon carbide. The finished disc is 10 mm across and 1.5 mm thick.

Zana zinazohitajika:

Chembechembe za kabidi ya silikoniChembechembe za kabidi ya silikoni
Kalipa ya VernierKalipa ya Vernier
5

Spray aluminium electrodes and attach leads

Spray a metallised film of aluminium on both faces. Attach a lead wire to each with conductive silver paint. Unknown: the spraying method and the paint.

Vifaa kwa hatua hii:

Kitalu cha aluminiKitalu cha alumini1 as required
Rangi ya fedha inayopitisha umemeRangi ya fedha inayopitisha umeme1 as required
Waya wa ShabaWaya wa Shaba2 vipande

Zana zinazohitajika:

Njia isiyojulikana ya kunyunyizia chumaNjia isiyojulikana ya kunyunyizia chuma
Kalipa ya VernierKalipa ya Vernier

Vifaa

6

Zana Zinazohitajika

9

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Varistor ya oksidi ya chuma (kizuia mshtuko wa volteji)

Free

54
0
1

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Metal Oxide Varistor: Zinc Oxide with 0.2 % Bismuth Oxide, Sintered Disc (Masuyama 1972)

Metal Oxide Varistor: Zinc Oxide with 0.2 % Bismuth Oxide, Sintered Disc (Masuyama 1972)

na EdFI

Viwandani

4
0
0
0
0
0
Metal Oxide Varistor: Zinc Oxide with Bismuth and Manganese Oxides, 1350 °C (Masuyama 1972)

Metal Oxide Varistor: Zinc Oxide with Bismuth and Manganese Oxides, 1350 °C (Masuyama 1972)

na EdFI

Viwandani

2
0
0
0
0
0

CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

Majadiliano

(0)

Ingia kujiunga na majadiliano

Inapakia maoni...