CN108588710A - A kind of ni base alloy coating and composite assistant preparation method for cold coating Medium frequency induction cladding - Google Patents
A kind of ni base alloy coating and composite assistant preparation method for cold coating Medium frequency induction cladding Download PDFInfo
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- CN108588710A CN108588710A CN201810817660.7A CN201810817660A CN108588710A CN 108588710 A CN108588710 A CN 108588710A CN 201810817660 A CN201810817660 A CN 201810817660A CN 108588710 A CN108588710 A CN 108588710A
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- base alloy
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
Abstract
The invention discloses a kind of ni base alloy coatings and composite assistant preparation method for cold coating Medium frequency induction cladding, it is dry as the first component after being constituted the grinding uniformly of the first component raw material using borax, boric acid, sodium fluoride, the hydrolysis of the second component raw material constant temperature is constituted with ethyl silicate solution, absolute ethyl alcohol, diluted hydrochloric acid aqueous solution, natural cooling is the second component after standing, and completes composite assistant and prepares；First component of composite assistant and the second component are put into successively in Co-based alloy powder ready for use and are uniformly mixed and are tuned into paste mixture, paste mixture is then subjected to cold coating and cladding operates the ni base alloy coating being made for reinforcement.Composite assistant prepared by the present invention can reduce the phenomenon that sagging and dross in the cold coat cladding process of nickel-base alloy, there is prepared ni base alloy coating higher hardness, coating to form good metallurgical binding, coat inside dense structure with matrix, the defects of pore-free, slag inclusion.
Description
Technical field
The present invention relates to field of surface engineering technique, are related to a kind of reinforcement coating production, and in particular to one kind is used for
The ni base alloy coating and composite assistant preparation method of cold coating Medium frequency induction cladding.
Background technology
The sucker rod in the laminar flow roller and rod-pumped well of strip is conveyed in steel rolling mill, working condition is very severe, work
Face easily occurs being cracked and peeling off because being worn corrosion for a long time, eventually leads to section cooling roller and sucker rod because of dimension overproof
And it scraps.And the cost of section cooling roller and sucker rod is high, production technology is complicated, frequently replaces, and not only causes the huge of material
Big waste, and the productivity effect of relevant enterprise is directly influenced, therefore the surface reinforcement process of section cooling roller and sucker rod
The always hot spot of metallurgical equipment industry and petroleum chemical industry concern.Current widely used induction melting and coating technique is in sucker rod
Ni base alloy coating is deposited with laminar flow roller surface, to improve its service life, (Xu Meng is wide, Wang Xiang by 107829088 A of patent CN
Will, Jiang Wei, Huang Zhirong, Guo's soul, Xiao Huaxing, Meng Fei are a kind of to prepare complex intensifying coating using electric spark and induction melting and coating technique
Method), provide a kind of method preparing ni base alloy coating using electric spark and high-frequency induction melting and coating technique, but it is used
Waterglass, cellulose acetate and poly-vinyl alcohol solution are as binder, and cellulose acetate and polyvinyl alcohol are got angry in cladding process
It measures larger, easily forms stomata and hollow out in the coating, and to melt boiling point higher for waterglass, is difficult to decompose in cladding process and wave
Hair is easy to form slag inclusion in the coating.Patent CN 1891860A (Zhang Zengzhi, Song Wei, a kind of piece surface cladding layer process side
Method), it provides a kind of utilize and incudes the method that melting and coating technique prepares ni base alloy coating using cold coating, in cold coating procedure
It is middle to use waterglass and honey as binder, in incuding cladding process, it is difficult to the waterglass and gas forming amount for decomposing and volatilizing
Larger honey easily forms stomata and the defects of slag inclusion in the coating.
Invention content
It is an object of the invention to be easy to form folder for the binder as reinforcement in existing high-frequency induction melting and coating technique
The defects of slag, stomata, reinforcement poor quality, reinforcement process is complicated, the feature high to construction requirement, it is proposed that one kind being used for cold painting
The ni base alloy coating and composite assistant preparation method of Medium frequency induction cladding are covered, composite assistant prepared by this method can reduce nickel
Sagging and the phenomenon that dross in the cold coat cladding process of based alloy, moreover it is possible to promote cladding layer to complete deoxidation slag making, eliminate coating
In stomata and slag inclusion the defects of.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of ni base alloy coating preparation method for cold coating Medium frequency induction cladding, the ni base alloy coating is by compound
Auxiliary agent and Co-based alloy powder mixing composition, which is characterized in that the composite assistant preparation method includes the following steps：
Step 1: the stock of composite assistant：The first component raw material is constituted with borax, boric acid, sodium fluoride, it is molten with silester
Liquid, absolute ethyl alcohol, diluted hydrochloric acid aqueous solution constitute the second component raw material；
Step 2: prepared by the raw material of composite assistant：The grinding of first component raw material is uniform, and kept dry constitutes first group
Point；Second component raw material is subjected to constant temperature hydrolysis, silicate hydrolyzate liquid is made, cooled to room temperature after the completion of hydrolysis is quiet
It postpones and is sealed, constitute the second component；
Step 3: the addition of composite assistant：Sequence puts into the first component and the second component ready for use successively when use
Paste mixture is uniformly mixed and be tuned into Co-based alloy powder, and paste mixture is then subjected to cold coating and cladding is grasped
The ni base alloy coating for reinforcement is made.
Preferably, in the step 1, the purity of sodium tetraborate, boric acid and sodium fluoride is more than 99%.
Preferably, in the step 1, the quality proportioning of sodium tetraborate, boric acid and sodium fluoride is followed successively by：4~6：2~
4：1~3.
Preferably, in the step 1, the ethyl silicate solution is Si-40, and the mass concentration of dilute hydrochloric acid solution is
0.4%~2.0%.
Preferably, in the step 2, the first component raw material is by ball milling in planetary ball mill, ball milling parameter
Drum's speed of rotation is 250~300r/min, and Ball-milling Time is 10~20min.
Preferably, in the step 2, in the step 2, the second component raw material carries out the hydrolysis temperature of constant temperature hydrolysis
It it is 50 DEG C~60 DEG C, hydrolysis time 1.5-2.5h, it is 0.9~1.1g/cm that density is formed after hydrolysis3Silicate hydrolyzate
Liquid.
Preferably, in the step 2, cooled to room temperature after the completion of hydrolysis is sealed after standing 18-30h.
Preferably, in the step 2, when the second component raw material carries out constant temperature hydrolysis, ethyl silicate solution, anhydrous second
Alcohol, diluted hydrochloric acid aqueous solution quality proportioning range be followed successively by：8~12：7~9：1~1.6.
Preferably, in the step 3, the grain size of Co-based alloy powder is preferably 25~45um, and paste mixture is made
When, the proportion that the quality of the first component accounts for alloy powder gross mass is 4%~6%, and it is total that the quality of the second component accounts for alloy powder
The proportion of quality is 9%~13%.
A kind of above-mentioned composite assistant preparation method, spy are that the composite assistant is grouped as by the first component and second group,
Preparation method includes the following steps：
Step 1: the stock of composite assistant：The first component raw material is constituted with borax, boric acid, sodium fluoride, it is molten with silester
Liquid, absolute ethyl alcohol, diluted hydrochloric acid aqueous solution constitute the second component raw material；
Step 2: prepared by the raw material of composite assistant：The grinding of first component raw material is uniform, and kept dry constitutes first group
Point；Second component raw material is subjected to constant temperature hydrolysis, silicate hydrolyzate liquid is made, cooled to room temperature after the completion of hydrolysis is quiet
It postpones and is sealed, constitute the second component, complete the preparation of composite assistant.
Present invention has the advantages that：
Composite assistant prepared by the present invention can reduce sagging and dross in the cold coat cladding process of nickel-base alloy
Phenomenon, while boric acid, borax, the sodium fluoride in composite assistant will promote cladding layer to complete deoxidation slag making, eliminate the gas in coating
The defects of hole and slag inclusion.Prepared ni base alloy coating has higher hardness (580-730HV0.1), coating is formed with matrix
The defects of good metallurgical binding, coat inside dense structure, pore-free, slag inclusion.
Description of the drawings
Fig. 1 is the SEM pictures of the ni base alloy coating section microscopic structure prepared by the embodiment of the present invention 1；
Fig. 2 is the microhardness distribution curve graph in the ni base alloy coating section prepared by the embodiment of the present invention 1.
Fig. 3 is the SEM pictures of the ni base alloy coating section microscopic structure prepared by the embodiment of the present invention 2；
Fig. 4 is the microhardness distribution curve graph in the ni base alloy coating section prepared by the embodiment of the present invention 2.
Fig. 5 is the SEM pictures of the ni base alloy coating section microscopic structure prepared by the embodiment of the present invention 3；
Fig. 6 is the microhardness distribution curve graph in the ni base alloy coating section prepared by the embodiment of the present invention 3.
Fig. 7 is the SEM pictures of the ni base alloy coating section microscopic structure prepared by the embodiment of the present invention 4；
Fig. 8 is the microhardness distribution curve graph in the ni base alloy coating section prepared by the embodiment of the present invention 4.
Specific implementation mode
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are intended merely to the feature and advantage further illustrated the present invention, rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses a kind of answering for ni base alloy coating is prepared using cold coating Medium frequency induction melting and coating technique
The preparation method for closing auxiliary agent, includes the following steps：
Embodiment 1：
1. the stock of composite assistant：With sodium tetraborate (purity 99%), boric acid (purity 99%), sodium fluoride (purity 99%)
Constitute the first component raw material, wherein borax, boric acid, sodium fluoride quality proportioning be followed successively by：5：3：2, with ethyl silicate solution
(Si-40), absolute ethyl alcohol, the diluted hydrochloric acid aqueous solution that mass fraction is 0.8% constitute the second component raw material, and wherein silester is molten
Liquid (Si-40), absolute ethyl alcohol, mass fraction are followed successively by for the quality proportioning of 0.8% diluted hydrochloric acid aqueous solution：10：8：1.3；
2. the preparation of composite assistant：First component raw material is placed in ball milling in planetary ball mill, and (drum's speed of rotation is
250r/min, Ball-milling Time 10min), kept dry constitutes the first component；Second component raw material is subjected to constant temperature hydrolysis (water
Solve temperature 50 C, time 2h), it is 0.92g/cm to form density3Silicate hydrolyzate liquid, cooled to room temperature, stand for 24 hours
After be sealed, constitute the second component；
3. the addition of composite assistant：The first component and the second component are put into same nickel ready for use by sequence successively when use
Paste is stirred evenly and is tuned into base alloy powder, the addition quality of the first component is 4% with the proportion of alloy powder gross mass,
The addition quality of second component and the proportion 9% of alloy powder gross mass, the grain size of Co-based alloy powder is preferably 25~45um.
Then carry out it is subsequent it is cold coating and induction cladding operation (it is subsequent it is cold coating and induction cladding operation be those skilled in the art
Well known technical operating procedure, the present invention are not particularly limited and require).
Fig. 1 is to obtain composite assistant by using the present embodiment 1, the nickel-base alloy obtained after cold coating and induction cladding
The section SEM pictures of coating, as seen from Figure 1, the composite assistant prepared using the present invention, prepared ni base alloy coating
Good metallurgical binding is formd with matrix, and the defects of coat inside dense structure, pore-free and slag inclusion.
Fig. 2 is to obtain composite assistant by using the present embodiment 1, the nickel-base alloy obtained after cold coating and induction cladding
The microhardness distribution curve of coating cross sections, as seen from Figure 2, the composite assistant prepared using the present invention, prepared nickel
The microhardness of based alloy coating ranging from 580~720HV0.1, it is 3~4 times of matrix hardness.
Embodiment 2
1. the stock of composite assistant：With sodium tetraborate (purity 99%), boric acid (purity 99%), sodium fluoride (purity 99%)
Constitute the first component raw material, wherein boric acid, borax, sodium fluoride mass ratio be followed successively by：2：2：1, with ethyl silicate solution (Si-
40), absolute ethyl alcohol, the diluted hydrochloric acid aqueous solution that mass fraction is 1.0% constitute the second component raw material, wherein ethyl silicate solution
(Si-40), absolute ethyl alcohol, mass fraction are followed successively by for the quality proportioning of 1.0% diluted hydrochloric acid aqueous solution：9：7：1.2；
2. the preparation of composite assistant：First component raw material is placed in ball milling in planetary ball mill, and (drum's speed of rotation is
250r/min, Ball-milling Time 10min), kept dry；By the second component raw material carry out constant temperature hydrolysis (50 DEG C of hydrolysis temperature, when
Between 2h), formed density be 0.95g/cm3Silicate hydrolyzate liquid, cooled to room temperature, standing be sealed afterwards for 24 hours；
3. the addition of composite assistant：Sequence puts into the first component and the second component to be used same Ni-based successively when use
Paste is stirred evenly and is tuned into alloy powder, the addition quality of the first component is 5% with the proportion of alloy powder gross mass, the
The addition quality of two components and the proportion of alloy powder gross mass are 10%, the grain size of Co-based alloy powder is preferably 25~
45um.Then carry out it is subsequent it is cold coating and induction cladding operation (it is subsequent it is cold coating and induction cladding process be this technology neck
Technical operating procedure known to the personnel of domain, the present invention are not particularly limited and require).
Fig. 3 is to obtain composite assistant by using the present embodiment 2, the nickel-base alloy obtained after cold coating and induction cladding
The section SEM pictures of coating, as seen from Figure 3, the composite assistant prepared using the present invention, prepared ni base alloy coating
Good metallurgical binding is formd with matrix, interface is clear, and the defects of coat inside dense structure, pore-free and slag inclusion.
Fig. 4 is to obtain composite assistant by using the present embodiment 2, the nickel-base alloy obtained after cold coating and induction cladding
The microhardness distribution curve of coating cross sections, as seen from Figure 4, the composite assistant prepared using the present invention, prepared nickel
The microhardness of based alloy coating ranging from 580~710HV0.1, it is 3~4 times of matrix hardness.
Embodiment 3
1. the stock of composite assistant：With sodium tetraborate (purity 99%), boric acid (purity 99%), sodium fluoride (purity 99%)
Constitute the first component raw material, wherein boric acid, borax, sodium fluoride mass ratio be followed successively by：2：2：1, with ethyl silicate solution (Si-
40), absolute ethyl alcohol, the diluted hydrochloric acid aqueous solution that mass fraction is 1.2% constitute the second component raw material, wherein ethyl silicate solution
(Si-40), absolute ethyl alcohol, mass fraction are followed successively by for the quality proportioning of 1.2% diluted hydrochloric acid aqueous solution：11：9：1.4；
2. the preparation of composite assistant：First component raw material is placed in ball milling in planetary ball mill, and (drum's speed of rotation is
250r/min, Ball-milling Time 15min), kept dry；By the second component raw material carry out constant temperature hydrolysis (55 DEG C of hydrolysis temperature, when
Between 2h), formed density be 0.97g/cm3 silicate hydrolyzate liquid, cooled to room temperature, standing be sealed afterwards for 24 hours；
3. the addition of composite assistant：Sequence puts into the first component and the second component to be used same Ni-based successively when use
Paste is stirred evenly and is tuned into alloy powder, the addition quality of the first component is 5% with the proportion of alloy powder gross mass, the
The addition quality of two components and the proportion of alloy powder gross mass are 10%, the grain size of Co-based alloy powder is preferably 25~
45um.Then carry out it is subsequent it is cold coating and induction cladding operation (it is subsequent it is cold coating and induction cladding process be this technology neck
Technical operating procedure known to the personnel of domain, the present invention are not particularly limited and require).
Fig. 5 is to obtain composite assistant by using the present embodiment 3, the nickel-base alloy obtained after cold coating and induction cladding
The section SEM pictures of coating, as seen from Figure 5, the composite assistant prepared using the present invention, prepared ni base alloy coating
Good metallurgical binding is formd with matrix, and the defects of coat inside dense structure, pore-free and slag inclusion.
Fig. 6 is to obtain composite assistant by using the present embodiment 3, the nickel-base alloy obtained after cold coating and induction cladding
The microhardness distribution curve of coating cross sections, as seen from Figure 6, the composite assistant prepared using the present invention, prepared nickel
The microhardness of based alloy coating ranging from 590~700HV0.1, it is 3~4 times of matrix hardness.
Embodiment 4
1. the stock of composite assistant：With sodium tetraborate (purity 99%), boric acid (purity 99%), sodium fluoride (purity 99%)
Constitute the first component raw material, wherein boric acid, borax, sodium fluoride mass ratio be followed successively by：6：3：1, with ethyl silicate solution (Si-
40), absolute ethyl alcohol, the diluted hydrochloric acid aqueous solution that mass fraction is 1.4% constitute the second component raw material, wherein ethyl silicate solution
(Si-40), absolute ethyl alcohol, mass fraction are followed successively by for the quality proportioning of 1.4% diluted hydrochloric acid aqueous solution：12：9：1.6；
2. the preparation of composite assistant：First component raw material is placed in ball milling in planetary ball mill, and (drum's speed of rotation is
300r/min, Ball-milling Time 10min), kept dry；By the second component raw material carry out constant temperature hydrolysis (60 DEG C of hydrolysis temperature, when
Between 2h), formed density be 1.05g/cm3 silicate hydrolyzate liquid, cooled to room temperature, standing be sealed afterwards for 24 hours；
3. the addition of composite assistant：Sequence puts into the first component and the second component to be used same Ni-based successively when use
Paste is stirred evenly and is tuned into alloy powder, the addition quality of the first component is 6% with the proportion of alloy powder gross mass, the
The addition quality of two components and the proportion of alloy powder gross mass are 12%, the grain size of Co-based alloy powder is preferably 25~
45um.Then carry out it is subsequent it is cold coating and induction cladding operation (it is subsequent it is cold coating and induction cladding process be this technology neck
Technical operating procedure known to the personnel of domain, the present invention are not particularly limited and require).
Fig. 7 is to obtain composite assistant by using the present embodiment 4, the nickel-base alloy obtained after cold coating and induction cladding
The section SEM pictures of coating, as seen from Figure 7, the composite assistant prepared using the present invention, prepared ni base alloy coating
Good metallurgical binding is formd with matrix, interface is clear, and the defects of coat inside dense structure, pore-free and slag inclusion.
Fig. 8 is to obtain composite assistant by using the present embodiment 4, the nickel-base alloy obtained after cold coating and induction cladding
The microhardness distribution curve of coating cross sections, as seen from Figure 8, the composite assistant prepared using the present invention, prepared nickel
The microhardness of based alloy coating ranging from 680~730HV0.1 is 3~4 times of matrix hardness.
Claims (10)
1. a kind of ni base alloy coating preparation method for cold coating Medium frequency induction cladding, which is helped by compound
Agent and Co-based alloy powder mixing composition, which is characterized in that the composite assistant preparation method includes the following steps：
Step 1: the stock of composite assistant：Constituted the first component raw material with borax, boric acid, sodium fluoride, with ethyl silicate solution,
Absolute ethyl alcohol, diluted hydrochloric acid aqueous solution constitute the second component raw material；
Step 2: prepared by the raw material of composite assistant：The grinding of first component raw material is uniform, and kept dry constitutes the first component；It will
Second component raw material carries out constant temperature hydrolysis, is made silicate hydrolyzate liquid, cooled to room temperature after the completion of hydrolysis, close after standing
Envelope preserves, and constitutes the second component；
Step 3: the addition of composite assistant：Sequence puts into the first component and the second component ready for use Ni-based successively when use
Paste mixture is uniformly mixed and be tuned into alloy powder, and paste mixture is then subjected to cold coating and cladding operation system
At the ni base alloy coating for reinforcement.
2. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 1, tetraboric acid
The purity of sodium, boric acid and sodium fluoride is more than 99%.
3. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 1, tetraboric acid
The quality proportioning of sodium, boric acid and sodium fluoride is followed successively by：4~6：2~4：1~3.
4. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 1, the silicon
Acetate solution is Si-40, and the mass concentration of dilute hydrochloric acid solution is 0.4%~2.0%.
5. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 2, first group
Divide raw material by ball milling in planetary ball mill, ball milling parameter is that drum's speed of rotation is 250~300r/min, and Ball-milling Time is
10~20min.
6. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 2, the step
In rapid two, the hydrolysis temperature that the second component raw material carries out constant temperature hydrolysis is 50 DEG C~60 DEG C, hydrolysis time 1.5-2.5h, hydrolysis
It is 0.9~1.1g/cm to form density afterwards3Silicate hydrolyzate liquid.
7. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 2, hydrolyze
At rear cooled to room temperature, it is sealed after standing 18-30h.
8. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 2, second group
When point raw material carries out constant temperature hydrolysis, ethyl silicate solution, absolute ethyl alcohol, diluted hydrochloric acid aqueous solution quality proportioning range be followed successively by：8
~12：7~9：1~1.6.
9. the ni base alloy coating preparation method described in a kind of claim 1, spy are：In the step 3, Ni-based conjunction
The grain size at bronze end is preferably 25~45um, and when paste mixture is made, the quality of the first component accounts for alloy powder gross mass
Proportion is 4%~6%, and it is 9%~13% that the quality of the second component, which accounts for the proportion of alloy powder gross mass,.
10. the composite assistant preparation method described in a kind of claim 1, spy are, the composite assistant by the first component and
Second group is grouped as, and preparation method includes the following steps：
Step 1: the stock of composite assistant：Constituted the first component raw material with borax, boric acid, sodium fluoride, with ethyl silicate solution,
Absolute ethyl alcohol, diluted hydrochloric acid aqueous solution constitute the second component raw material；
Step 2: prepared by the raw material of composite assistant：The grinding of first component raw material is uniform, and kept dry constitutes the first component；It will
Second component raw material carries out constant temperature hydrolysis, is made silicate hydrolyzate liquid, cooled to room temperature after the completion of hydrolysis, close after standing
Envelope preserves, and constitutes the second component, completes the preparation of composite assistant.
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| CN201810817660.7A CN108588710B (en) | 2018-07-24 | 2018-07-24 | Preparation method of nickel-based alloy coating for cold coating medium-frequency induction cladding and composite auxiliary agent |
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|---|---|---|---|
| CN201810817660.7A CN108588710B (en) | 2018-07-24 | 2018-07-24 | Preparation method of nickel-based alloy coating for cold coating medium-frequency induction cladding and composite auxiliary agent |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107012461A (en) * | 2017-05-11 | 2017-08-04 | 北京科技大学 | A kind of preparation method of high corrosion-resistant nickel-base alloy coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012461A (en) * | 2017-05-11 | 2017-08-04 | 北京科技大学 | A kind of preparation method of high corrosion-resistant nickel-base alloy coating |
Non-Patent Citations (4)
| Title |
|---|
| 严有为等: ""铸渗涂料的研究及其应用"", 《铸造》 * |
| 何小健: ""球墨铸铁-锡青铜双金属高频感应熔覆工艺研究"", 《万方数据》 * |
| 李秀兵等: ""硼砂在制备WCp增强铁基复合材料中的粘结作用"", 《铸造》 * |
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