SU589274A1 - Inoculant - Google Patents
InoculantInfo
- Publication number
- SU589274A1 SU589274A1 SU752164581A SU2164581A SU589274A1 SU 589274 A1 SU589274 A1 SU 589274A1 SU 752164581 A SU752164581 A SU 752164581A SU 2164581 A SU2164581 A SU 2164581A SU 589274 A1 SU589274 A1 SU 589274A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- increase
- inoculant
- cerium
- graphite
- cast iron
- Prior art date
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Description
(54)(54)
МОДИФИКАТОРMODIFIER
589274589274
Введение в белый чугун предлагаемого модификатора, содержащего как элементы-ингибиторы Си и С, так и элементы-инокул торы Са и Се, позвол ет получить повышенное количество ак тивных центров кристаллизации и увеличить скорость их роста за счет повышени коэффициента диффузии углеро да через искаженную кристаллическую решетку железа. Образу стойкие химические соединени с кислородом, азотом и серой, церий и Ксшьций нейтрализуют их стабилизирующее вли ние на цементит. Одновременно с увеличением количества включений графита церий и кальций улучшают форму, распределение и размеры графитовых включений, что способствует повышению механических свойств чугуна. Графитизирующий отжиг белого чугуна, модифицированного карбидом кальци , медью и церием, протекает значительно быстрее, так как повышаетс общее содержание в металле .элементов-графитизаторов цери , кальци , меди и углерода, увеличивающих метастабильность цементита. Продолжительность графитирующего отжига белого чугуна, модифицированного предлагаемым модификатором, приведена в таблице.The introduction of the proposed modifier into white cast iron, containing both Cu and C inhibitor elements and Ca and Ce inoculatory elements, allows one to obtain an increased number of active crystallization centers and to increase their growth rate by increasing the diffusion coefficient of carbon through a distorted crystalline iron grating. The formation of stable chemical compounds with oxygen, nitrogen and sulfur, cerium and Xycium neutralize their stabilizing effect on cementite. Simultaneously with an increase in the number of graphite graphite, cerium and calcium improve the shape, distribution and size of graphite inclusions, which contributes to an increase in the mechanical properties of cast iron. The graphitizing annealing of white iron, modified with calcium carbide, copper and cerium, proceeds much faster, since the total content in the metal of ceri, calcium, copper and carbon graphitizers, which increase the metastability of cementite, increases. The duration of the graphitizing annealing of white cast iron modified by the proposed modifier is given in the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU752164581A SU589274A1 (en) | 1975-07-30 | 1975-07-30 | Inoculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU752164581A SU589274A1 (en) | 1975-07-30 | 1975-07-30 | Inoculant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU589274A1 true SU589274A1 (en) | 1978-01-25 |
Family
ID=20629228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU752164581A SU589274A1 (en) | 1975-07-30 | 1975-07-30 | Inoculant |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU589274A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493359A (en) * | 1981-07-17 | 1985-01-15 | American Motors (Canada) Inc. | Method for making cast iron engine blocks and the like |
| CN112143956A (en) * | 2020-09-28 | 2020-12-29 | 昆明理工大学 | Preparation method of wear-resistant high-thermal-conductivity graphite white cast iron |
-
1975
- 1975-07-30 SU SU752164581A patent/SU589274A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493359A (en) * | 1981-07-17 | 1985-01-15 | American Motors (Canada) Inc. | Method for making cast iron engine blocks and the like |
| CN112143956A (en) * | 2020-09-28 | 2020-12-29 | 昆明理工大学 | Preparation method of wear-resistant high-thermal-conductivity graphite white cast iron |
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