CN107574361B - Material formula of engine camshaft - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000000843 powder Substances 0.000 claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 239000000956 alloy Substances 0.000 claims description 19
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 16
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 4
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 4
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000628 Ferrovanadium Inorganic materials 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 4
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 description 12
- 239000011651 chromium Substances 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 239000011572 manganese Substances 0.000 description 8
- 229910018507 Al—Ni Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 241001062472 Stokellia anisodon Species 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052720 vanadium Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 150000002506 iron compounds Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910007981 Si-Mg Inorganic materials 0.000 description 1
- 229910008316 Si—Mg Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a material formula of an engine camshaft, which comprises the following components in percentage by weight: al: 20-35%, C: 3.2-4.2%, Si: 1.9-2.9%, Mn: 0.2-0.6%, Cu: 0.2-0.6%, P: 0.02-0.15%, S: 0.02-0.15%, nano Ni powder: 0.2-0.35%, the balance being Fe and unavoidable impurities. The invention can overcome the problems of heavier mass and poor wear resistance of the camshaft in the prior art.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to a material formula of an engine camshaft.
Background
The camshaft is an important part in an automobile engine valve actuating mechanism, and the structural design and the processing quality of the camshaft are good and bad, so that the performance of the engine is directly influenced. In recent years, due to the need for environmental protection, engines with low fuel consumption and low pollution have been developed; in order to solve the problem of pollution-free emission of automobile exhaust and realize high rotating speed and high output power of the engine, a plurality of engines adopt a structure with multiple valves and variable valve timing phases and valve lift ranges, so that the load of a valve spring is increased; meanwhile, in order to reduce oil consumption and friction loss, a roller structure is adopted between the cam and the rocker arm, and a high-pressure area is formed on the contact surface of the cam and the roller, so that higher requirements are provided for the motion stability, dynamic balance, wear resistance and torsional strength of the camshaft; in addition, in order to achieve the purpose of light weight and low cost of the automobile, on the premise of not influencing the performance requirements of each part, the parts are required to be processed as much as possible, the weight is reduced, and more reasonable materials are used.
At present, the main component of the engine camshaft material is iron, because the iron has high density, the camshaft produced by using the material is generally heavy in weight and generally poor in wear resistance, and in order to solve the problem, aluminum elements which are low in density, low in price and rich in reserves are considered to be added into a plurality of materials when the camshaft is cast, the properties of the aluminum elements are similar to those of the iron, but experiments show that the alloy of the iron, the aluminum and the carbon is very brittle, and although the manganese element is added into the alloy, the problem can be relieved, and the requirement for producing the camshaft cannot be met.
Disclosure of Invention
In view of the above, the invention aims to provide a material formula of an engine camshaft, which can overcome the problems of heavy mass and poor wear resistance of the camshaft in the prior art.
The invention solves the technical problems by the following technical means:
a material formula of an engine camshaft comprises the following components in percentage by weight: al: 20-35%, C: 3.2-4.2%, Si: 1.9-2.9%, Mn: 0.2-0.6%, Cu: 0.2-0.6%, P: 0.02-0.15%, S: 0.02-0.15%, nano Ni powder: 0.2-0.35%, the balance being Fe and unavoidable impurities.
In the material formula, C is an element for strongly promoting graphitization, and contributes to increasing the strength of steel; si can reduce the cold shock chilling white depth and shorten the crater depth by increasing the silicon amount, and adjust the length of a columnar grain structure, thereby being beneficial to enhancing the strength; mn is a stabilizer for carbide, contributes to the generation of a texture structure, and increases the firmness, strength and wear resistance; cu is an element for promoting graphitization, can offset the adverse effect of large chilling tendency of other elements, is beneficial to ensuring the casting process performance of molten iron, and simultaneously is an element for stabilizing pearlite structure in the matrix and can strengthen the matrix; p and S are generally harmful elements, which make the steel hot brittle, but can increase the strength of the camshaft alloy; al is a light element, so that the density of the whole alloy material can be reduced, the mass of the camshaft is reduced, nano Ni powder is added, during annealing, nano Ni can be shared with part of aluminum through valence, Al-Ni metal crystals in a nano range are formed through reaction, the Al-Ni crystals can resist shearing stress, tiny cracks can be prevented from being diffused to the whole material, the purpose of strengthening is achieved, and the wear resistance of the camshaft is stronger; when the material formula is melted into casting water, metals such as Al, Fe and the like are active in chemical properties, particularly Al easily generates oxidation reaction with oxygen in air under high-temperature casting water to generate metal oxide, and the strength of the camshaft is affected by the occurrence of the metal oxide.
The technical effects achieved are as follows: 1. according to the scheme, the light element Al with a larger proportion is added into the material formula, so that the weight of the whole camshaft can be reduced by 20-30%, the camshaft is lighter in weight, and the purpose of lightening the automobile is achieved; 2. according to the scheme, the nano Ni powder is added while Al is added, during annealing, nano Ni can react with partial aluminum to form Al-Ni metal crystals in a nano range, the Al-Ni crystals can resist shear stress and can prevent tiny cracks from diffusing to the whole material, so that the purpose of strengthening is achieved, and the wear resistance of the camshaft is higher.
Furthermore, the material formula also comprises 0.2-0.6% of silicon-magnesium alloy by mass percent. The silicon-magnesium alloy is added into the formula, the chemical property of magnesium in the silicon-magnesium alloy is more active than that of Al, the magnesium can be subjected to oxidation reaction in preference to aluminum, the silicon-magnesium alloy subjected to oxidation reaction can have the effects of spheroidization, desulfurization and degassing, the purity of casting water can be improved, and the silicon-magnesium alloy can also act with low-melting-point impurities such as arsenic, zinc, lead and the like to generate non-fusible iron compounds with lower melting points, so that the impurities are eliminated, and when the silicon-magnesium alloy is inoculated at a later stage, the effect of preventing interference elements from damaging spheroidization can be realized, and the strength of the camshaft is improved.
Further, the material formula comprises Al: 25-30%, C: 3.5-3.9%, Si: 2.1-2.7%, Mn: 0.3-0.5%, Cu: 0.3-0.5%, P: 0.05-0.1%, S: 0.05-0.1%, nano Ni powder: 0.25-0.3%, Si-Mg alloy 0.3-0.5%, and the balance Fe and inevitable impurities.
Further, the material formula comprises Al: 27%, C: 3.7%, Si: 2.45%, Mn: 0.4%, Cu: 0.4%, P: 0.075%, S: 0.075%, nano Ni powder: 0.27 percent of silicon-magnesium alloy, 0.4 percent of silicon-magnesium alloy and the balance of Fe and inevitable impurities.
Further, V: 0.3-0.7%, Cr: 0.75-1.35%. The addition of vanadium can enhance the wear resistance of the camshaft; the addition of chromium is an effective element for increasing the depth of the white layer, so that the structure becomes thick, the litterness is increased, the wear resistance and the hardness of the camshaft can be increased, and the corrosion resistance of the camshaft can be enhanced.
Furthermore, the addition amount of V in the material formula is 0.5%, and the addition amount of Cr is 1%. Experiments show that the wear resistance and the corrosion resistance of the camshaft are better according to the proportion.
Further, in the material formula, Al is added in the form of electrolytic aluminum powder, C is added in the form of graphite, Si is added in the form of ferrosilicon with the content of 30-80%, Mn is added in the form of ferromanganese with the content of 35-85%, Cu is added in the form of electrolytic copper powder or FeCu alloy, P is added in the form of ferrophosphorus with the content of 10-40%, S is added in the form of iron sulfide, V is added in the form of ferrovanadium, Cr is added in the form of high-carbon ferrochrome with the content of 20-70%, and Fe is added in the form of atomized iron powder.
Further, the electrolytic aluminum powder accounts for 25 wt%, and the nano Al powder accounts for 2 wt%.
Furthermore, the grain diameters of the nano Ni powder and the nano Al powder are both 2-10 nm.
Further, in the silicon-magnesium alloy, according to the mass percentage, the silicon content is 75%, and the magnesium content is 25%.
The invention has the beneficial effects that:
(1) according to the scheme, the light element Al is added into the material formula, so that the weight of the whole camshaft can be reduced by 20-30%, the camshaft is lighter in weight, and the purpose of lightening the automobile is achieved;
(2) according to the scheme, the nano Ni powder is added while Al is added, and during annealing, the nano Ni can react with partial aluminum to form an Al-Ni metal crystal in a nano range, the Al-Ni crystal can resist shear stress and can prevent tiny cracks from diffusing to the whole material, so that the purpose of strengthening is achieved, and the wear resistance of the camshaft is stronger;
(3) according to the scheme, the silicon-magnesium alloy is added into the formula, so that the main components of the casting water are not easily oxidized in the air, and the silicon-magnesium alloy can react with low-melting-point impurities such as arsenic, zinc, lead and the like to generate a low-melting-point non-fusible iron compound, so that the impurities are eliminated, and when inoculation is carried out at a later stage, the effect of preventing interference elements from damaging spheroidization can be achieved, and the strength of a camshaft is improved;
(4) this scheme not only the quality is light, and wear resistance is good to corrosion resisting property is also good, the long service life of camshaft.
Detailed Description
The following example experiments were carried out for the material formulation of the engine camshaft of the present embodiment, as shown in table 1:
table 1 materials formulation table for camshaft of engine of example 1 to example 11
Example 1:
a material formula of an engine camshaft comprises the following components in percentage by weight: 25%, nano Al powder: 2%, C: 3.7%, Si: 2.45%, Mn: 0.4%, Cu: 0.4%, P: 0.075%, S: 0.075%, nano Ni powder: 0.27%, V: 0.5%, Cr: 1%, silicon-magnesium alloy 0.4%, Fe: 63.73 percent; c is added in the form of graphite, Si is added in the form of ferrosilicon with the content of 30-80%, Mn is added in the form of ferromanganese with the content of 35-85%, Cu is added in the form of electrolytic copper powder or FeCu alloy, P is added in the form of ferrophosphorus with the content of 10-40%, S is added in the form of iron sulfide, V is added in the form of ferrovanadium, Cr is added in the form of high-carbon ferrochrome with the content of 20-70%, and Fe is added in the form of atomized iron powder; wherein the grain diameters of the nano Ni powder and the nano Al powder are both 2-10 nm.
Example 2-example 11:
the difference between example 2 and example 11 compared with example 1 is that the engine camshaft alloy material was cast according to the parameters of table 1.
Wherein: the preparation method comprises the following steps:
the preparation method for preparing the camshaft by using the engine camshaft material comprises the following steps:
step 1, weighing raw material powder according to the combined type powder material components, and processing the raw material powder by adopting an atomization method, wherein: c is added in the form of graphite, Si is added in the form of ferrosilicon with the content of 30-80%, Mn is added in the form of ferromanganese with the content of 35-85%, Cu is added in the form of electrolytic copper powder or FeCu alloy, P is added in the form of ferrophosphorus with the content of 10-40%, S is added in the form of iron sulfide, V is added in the form of ferrovanadium, Cr is added in the form of high-carbon ferrochrome with the content of 20-70%, and Fe is added in the form of atomized iron powder;
step 2, selecting a medium-frequency induction furnace to smelt the molten iron, adding the raw materials in the step 1 to smelt, wherein the molten iron is overheated to 1500 ℃ during smelting, immediately powering off to reduce the temperature to 1450 ℃, and inoculating with 0.2-0.4% of 75 ferrosilicon (with the granularity of 5-10 mm);
and 3, when the temperature is reduced to 1400 +/-25 ℃, casting by using an open casting system, wherein the casting time is controlled within 11 +/-3 s.
Comparative example:
the cam alloy comprises the following components of C3%, Cr 6%, Mo 0.9%, P0.45%, Cu 3%, Si 0.9%, Mn0.25%, Ti 0.01% and the balance of Fe. The formula is a material formula for conventional camshaft casting.
The preparation method of the combined type powder metallurgy hollow camshaft cam material comprises the following steps:
step 1, weighing raw material powder according to the combined powder material components, and processing the raw material powder by adopting an atomization method;
step 2, selecting a medium-frequency induction furnace to smelt the molten iron, adding the raw materials in the step 1 to smelt, wherein the molten iron is overheated to 1500 ℃ during smelting, immediately powering off to reduce the temperature to 1450 ℃, and inoculating with 0.2-0.4% of 75 ferrosilicon (with the granularity of 5-10 mm);
and 3, when the temperature is reduced to 1400 +/-25 ℃, casting by using an open casting system, wherein the casting time is controlled within 11 +/-3 s.
According to the camshaft alloy materials made in the above example 1 and comparative example, the density measurement, hardness measurement using a constant HR-150B high durometer, and wear resistance test using a honest NM-I wear tester were respectively performed on the alloy materials, and the specific test data are shown in the following table 2:
TABLE 2 test data Table for camshaft alloys of examples 1 to 11 and comparative examples
| Examples | Density (g/cm)3) | Hardness (HRC) | Abrasion resistance (mg/cm)2) |
| 1 | 5.48 | 75 | 1.354 |
| 2 | 5.49 | 70 | 1.658 |
| 3 | 5.6 | 68 | 1.754 |
| 4 | 5.52 | 70 | 1.654 |
| 5 | 5.44 | 71 | 1.564 |
| 6 | 5.99 | 69 | 1.687 |
| 7 | 5.69 | 71 | 1.551 |
| 8 | 5.34 | 72 | 1.498 |
| 9 | 5.04 | 69 | 1.689 |
| 10 | 5.49 | 72 | 1.495 |
| 11 | 5.47 | 70 | 1.364 |
| Comparative examples | 7.45 | 64 | 2.387 |
From the test data of table 2 for camshaft alloys, it can be seen that:
1. from the comparison of examples 1-11 with the comparative examples, it can be seen that the material formulations of the camshafts of examples 1-11 of this embodiment all processed camshafts having lower densities than the prior art of the comparative examples, and produced camshafts having lighter weights, but having greater hardness and better wear resistance than the prior art;
2. compared with the embodiment 1 and the embodiment 2, the material formula of the scheme has the advantages that the addition of the nano Al powder is beneficial to improving the hardness and the wear resistance of the camshaft alloy;
3. from the comparison of example 1 with examples 3 to 5, it can be seen that in the material formulation of the present embodiment, the addition of V and Cr contributes to the improvement of the hardness and wear resistance of the camshaft alloy, and the mass fraction V: 0.5% and Cr: when the content is 1%, the hardness and the wear resistance of the camshaft alloy are better;
4. from a comparison of example 1 with examples 6 to 9, it can be seen that in the material formulation of the present solution, the Al: 27%, C: 3.7%, Si: 2.45%, Mn: 0.4%, Cu: 0.4%, P: 0.075%, S: 0.075%, nano Ni powder: 0.27%, V: 0.5%, Cr: the camshaft alloy processed by the formula with 1 percent and the balance of Fe has better hardness and wear resistance;
5. from the comparison between the embodiment 1 and the embodiment 10, it can be seen that the material formula of the scheme adopts the grain diameters of Al and Ni of 2-10nm, which is beneficial to improving the hardness and the wear resistance of the processed camshaft.
6. From the comparison between example 1 and example 11, it can be seen that the addition of the aluminum magnesium alloy in the material formulation of the present invention can improve the hardness and wear resistance of the camshaft.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (7)
1. An engine camshaft material, characterized in that: the material comprises the following raw materials in percentage by weight: 27%, C: 3.7%, Si: 2.45%, Mn: 0.4%, Cu: 0.4%, P: 0.075%, S: 0.075%, nano Ni powder: 0.27 percent of silicon-magnesium alloy, 0.4 percent of silicon-magnesium alloy and the balance of Fe and inevitable impurities.
2. An engine camshaft material as claimed in claim 1, wherein: v: 0.3-0.7%, Cr: 0.75-1.35%.
3. An engine camshaft material as claimed in claim 2, wherein: the addition amount of V in the raw materials of the material is 0.5%, and the addition amount of Cr is 1%.
4. An engine camshaft material as claimed in claim 3, wherein: in the raw materials of the material, Al is added in the form of electrolytic aluminum powder, C is added in the form of graphite, Si is added in the form of ferrosilicon with the content of 30-80%, Mn is added in the form of ferromanganese with the content of 35-85%, Cu is added in the form of electrolytic copper powder or FeCu alloy, P is added in the form of ferrophosphorus with the content of 10-40%, S is added in the form of iron sulfide, V is added in the form of ferrovanadium, Cr is high-carbon ferrochrome with the content of 20-70%, and Fe is added in the form of atomized iron powder.
5. An engine camshaft material as claimed in claim 4, wherein: the weight percentage of the electrolytic aluminum powder is 25%, and the weight percentage of the nano Ni powder is 2%.
6. An engine camshaft material as claimed in claim 5, wherein: the grain diameters of the nano Ni powder and the electrolytic Al powder are both 2-10 nm.
7. An engine camshaft material as claimed in claim 6, wherein: in the silicon-magnesium alloy, according to the mass percentage, the silicon content is 75 percent, and the magnesium content is 25 percent.
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2017
- 2017-09-07 CN CN201710801781.8A patent/CN107574361B/en active Active
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|---|---|---|---|---|
| JPH03104841A (en) * | 1989-09-16 | 1991-05-01 | Mitsubishi Motors Corp | Spheroidal graphite cast iron |
| CN1176315A (en) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | Iron casting alloy for producing piston ring of internal-combustion engine |
| CN101443470A (en) * | 2006-04-11 | 2009-05-27 | 株式会社普利司通 | Bead wire having light weight and excellent drawability, method for production of the bead wire, and lightweight tire |
| CN104024449A (en) * | 2011-08-17 | 2014-09-03 | 马勒发动机零部件巴西有限公司 | Cylinder liner and cast iron alloy |
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Denomination of invention: A material formula of engine camshaft Effective date of registration: 20210205 Granted publication date: 20200407 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: ZHEJIANG BOXING INDUSTRY AND TRADE Co.,Ltd. Registration number: Y2021330000126 |
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Denomination of invention: A Material Formula for Engine Camshaft Effective date of registration: 20230314 Granted publication date: 20200407 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: ZHEJIANG BOXING INDUSTRY AND TRADE Co.,Ltd. Registration number: Y2023980034781 |
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Granted publication date: 20200407 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: ZHEJIANG BOXING INDUSTRY AND TRADE Co.,Ltd. Registration number: Y2023980034781 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A material formula for engine camshaft Granted publication date: 20200407 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: ZHEJIANG BOXING INDUSTRY AND TRADE Co.,Ltd. Registration number: Y2024980007094 |