SU327774A1 - ANTIFRICTION MATERIAL - Google Patents
ANTIFRICTION MATERIALInfo
- Publication number
- SU327774A1 SU327774A1 SU1453488A SU1453488A SU327774A1 SU 327774 A1 SU327774 A1 SU 327774A1 SU 1453488 A SU1453488 A SU 1453488A SU 1453488 A SU1453488 A SU 1453488A SU 327774 A1 SU327774 A1 SU 327774A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- graphite
- manganese phosphate
- manganese
- hours
- antifriction material
- Prior art date
Links
- 239000003831 antifriction material Substances 0.000 title claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims 2
- 239000011574 phosphorus Substances 0.000 claims 2
- -1 phosphorus compound Chemical class 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L MANGANESE CHLORIDE Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Description
Известен графитовый материал, содержащий в качестве добавки фосфорные соединени , например продукт конденсации алюмофосфата с ортофосфорной кислотой (условное название А-18), повышаюн1,ие стойкость к окислению.A graphite material is known that contains phosphoric compounds as an additive, for example, the condensation product of aluminophosphate with orthophosphoric acid (code name A-18), which increases oxidation resistance.
Предлагаемый материал на основе антифрикционного графита содержит в качестве добавки фосфат марганца.The proposed material based on antifriction graphite contains manganese phosphate as an additive.
Компоненты берут в следующем отношении (в %):Components take in the following respect (in%):
графит93-99graphite93-99
фосфат марганца1-7manganese phosphate1-7
Описываемый материал имеет пониженную приблизительно в 10 раз (по сравнению с непропитанными образцами) скорость окислени на воздухе при 600°С. Стойкость к окислению сохран етс в течение длительного времени (более 100 час).The described material has a reduced oxidation rate of about 10 times (compared to non-impregnated samples) in air at 600 ° C. Resistance to oxidation is maintained for a long time (more than 100 hours).
В начальный период времени (10 час) оба материала обладают приблизительно одинаковыми скорост ми окислени , но через 65 час скорость окислени графита, пропитанного ингибитором А-18, превосходит скорость окислени графита, пропитанного фосфатом марганца приблизительно в 7 раз (см. таблицу ).In the initial period of time (10 hours), both materials have approximately the same oxidation rates, but after 65 hours the oxidation rate of graphite impregnated with inhibitor A-18 exceeds the oxidation rate of graphite impregnated with manganese phosphate approximately 7 times (see table).
ТаблицаTable
Увеличение длительности ингибирующего действи предложенным соединением объ сн етс тем, что фосфат марганца при термическом разложении длительное врем вл етс источником фосфорных летучих соединений , а последние создают защитную атмосферу в порах графита.The increase in the duration of the inhibitory effect of the proposed compound is due to the fact that, during thermal decomposition, manganese phosphate is a source of phosphoric volatile compounds for a long time, and the latter create a protective atmosphere in the pores of graphite.
Пример. Заготовки из антифрикционного графита марка АГ-1500 (dk 1,8 г/см) помещают в автоклав и вакуумируют до остаточного давлени 1-3 мм рт. ст. После откачки в автоклав подают водный раствор, содержащий 0,7 моль хлорида марганца и 2,1 моль ортофосфорной кислоты в 1 л, и нагнетают азот до давлени 10 ати. Заготовки выдерживают под давлением 2 час, затем следуют сушка на воздухе в течение 3 дней и термообработка в электрической печи с максимальной температурой обработки 450°С в течение 25-30 час с постепенным подъемом температуры . Обрабатываемые образцы при этом наход тс в коксовой засыпке или в атмосфере инертного газа. Измен соотношени между количеством графита и раствора, можно получать образцы с разным содержанием фосфата марганца. Например, образец 2 (см.Example. Preparations of antifriction graphite grade AG-1500 (dk 1.8 g / cm) are placed in an autoclave and are evacuated to a residual pressure of 1-3 mm Hg. Art. After pumping, an aqueous solution containing 0.7 mol of manganese chloride and 2.1 mol of orthophosphoric acid in 1 liter is fed into the autoclave and nitrogen is injected to a pressure of 10 MPa. The blanks are kept under pressure for 2 hours, followed by air drying for 3 days and heat treatment in an electric oven with a maximum processing temperature of 450 ° C for 25-30 hours with a gradual rise in temperature. The samples to be processed are in this case in coke backfill or in an inert gas atmosphere. By varying the ratio between the amount of graphite and solution, samples can be obtained with different manganese phosphate contents. For example, sample 2 (see
таблицу) содержит 3,3% фосфата марганца, а образец 3-1,5% фосфата марганца.table) contains 3.3% manganese phosphate, and a sample of 3-1.5% manganese phosphate.
Предмет изобретени Subject invention
Claims (2)
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884421218A Addition SU1536461A2 (en) | 1988-04-19 | 1988-04-19 | Sealed connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU327774A1 true SU327774A1 (en) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243434A (en) * | 1978-05-30 | 1981-01-06 | Rocol Limited | Composition for coating metal-working tools |
| US4663060A (en) * | 1985-04-11 | 1987-05-05 | Dow Corning Gmbh | Solid lubricant combination and utilization thereof in friction linings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243434A (en) * | 1978-05-30 | 1981-01-06 | Rocol Limited | Composition for coating metal-working tools |
| US4663060A (en) * | 1985-04-11 | 1987-05-05 | Dow Corning Gmbh | Solid lubricant combination and utilization thereof in friction linings |
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