The ternary alloy coating material and the manufacture method thereof of high anti-corrosion plated steel material
Technical field
The present invention relates to a kind of ternary alloy coating material and manufacture method thereof, especially a kind of ternary alloy coating material and manufacture method thereof of high anti-corrosion plated steel material.
Background technology
On current domestic and international market, because increasing to pot galvanize or hot-dip galvanized alloy steel plate demand in the fields such as household electrical appliances, building materials, automobile, but most of producer is still in production with use traditional hot-dip galvanizing sheet steel (band) or only contain the hot-dip galvanizing sheet steel (band) of 0.1~0.2%Al.There are a lot of defectives in this product, work-ing life is short, only 10 years left and right sides time promptly produced the defective of corrosion, and machining property is poor, and coating causes damage easily because of stretching, particularly in that to be higher than under the condition of room temperature etch resistant properties poor, the easy embrittlement of coating and matrix metal junction, easily oxidation generates firecoat, and anti-fatigue performance is poor, after bended several times, be easy to generate be full of cracks, coating decortication phenomenon occurs.
For solving the problems of the technologies described above, prior art proposes a lot of relevant technical schemes, as author Wu Junlin, Yu Zhongxing, in two pieces of articles of " trace additives is to the hot galvanized layer Effect on Performance " that Zhu Yongda delivers on periodical " Shanghai non-ferrous metal " by name and " trace adds the influence of rare earth to the zinc base alloy coating performance ", all mention in temperature zinc layer and to add trace rare-earth element or other elements such as magnesium etc. can play beneficial effect, but these two pieces of articles only stay in learned research, how relate to various concrete elements adds on earth and does not still have final conclusion at present, even as add how many optimums at " trace additives is to the hot galvanized layer Effect on Performance " described additive containing aluminium that has been commonly used and still do not have final conclusion, and aluminium in these two parts of periodical literatures, nickel, rare earth, lead and antimony, titanium, magnesium, element silicon all is to add the Zn plate to as trace additives, Zn-Al, go among Zn-Fe or the Fe-Al, do not provide any in the document about these trace additives being added to the technology enlightenment of going among Zn-Al-Si or the Zn-Al-RE, and because various elements are not quite similar to the influence that hot-dip galvanizing sheet steel produced, or even opposite effect, therefore can not be simply at Zn-Al-Si, add other trace elements on the basis of Zn-Al-rare earth arbitrarily, although recognized that therefore adding some element can play beneficial effect class hour in theory, but because influencing each other between element and the element causes ternary alloy coating material so far still can not comprise any other trace element, described as ending up " the research great majority still rest on laboratory stage both at home and abroad at present; have only the minority alloy to be applied to produce " in " trace additives is to the hot galvanized layer Effect on Performance ", therefore, the coating material that how to form better ternary alloy is pendent technical problem always.
Summary of the invention
At the unfavorable technical barrier of ternary alloy coating material performance in the prior art, the object of the invention is to provide a kind of ternary alloy coating material and manufacture method thereof of high anti-corrosion plated steel material, corrosion resistance and resistance to elevated temperatures with better raising plated steel material, prolong the work-ing life of steel, improve the surface quality behind the steel plating.
A kind of ternary alloy coating material of the present invention is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, described trace additives is selected from one or more among Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, the Ti, and the total content of described trace additives is below 0.5%.
The mass percent that each composition of wherein said ternary alloy accounts for total mass is: Al:45-69%, Si:0.2-3%, Zn are surplus.
The mass percent that each composition of wherein said ternary alloy accounts for total mass is: Al:45-69%, rare earth element: 0.02-0.9%, Zn are surplus.
Concrete content F e<0.3% of wherein said each composition of trace additives, B<0.1%, Pb<0.1%, Mn<0.1%, Ca<0.1%, Cu<0.1%, Sb<0.1%, Sn<0.1%, Ni<0.1%, Bi<0.1%, Ti<0.1%.
A kind of method of making the ternary alloy coating material, described ternary alloy is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, described trace additives is selected from one or more among Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, the Ti, and the total content of described trace additives is below 0.5%.Various elements are carried out adding melting in the smelting furnace after the proportioning according to the above ratio, and smelting temperature is 750-800 ℃, passes through refining, slagging-off again through contactless stirring, pours into a mould alloy pig at last.
Induction stirring is adopted in wherein said contactless stirring.
A kind of high anti-corrosion coating material, it is characterized in that described high anti-corrosion plated steel material plating ternary alloy coating material, described ternary alloy is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, described trace additives is selected from one or more among Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, the Ti, and the total content of described trace additives is below 0.5%.
Adopt technical scheme of the present invention, compared with prior art, after adding trace additives, because mass percent by each composition of reasonable configuration, influence each other of each element and the negative interaction that is produced have been overcome, therefore solidity to corrosion improves greatly, and particularly the solidity to corrosion of swarf is more outstanding.The zinc-plated floor height of coating surface hardness ratio, frictional coefficient is littler than steel plate galvanized, and it is good to add the man-hour sliding, is difficult for producing cut.The coating surface light, anti-blackening.Coating not only strengthens with the matrix metal bonding force, and coating surface does not have the dross phenomenon.
Simultaneously, this ternary alloy coating material adopts unique prepared, the uniform ingredients segregation-free, remelting or remelting still can keep this effect after placing for a long time, and end slag growing amount is few, high solidity to corrosion and excellent fatigue resistance energy are arranged, strong with the matrix metal bonding force, can be widely used in household electrical appliances, building materials, automobile industry.
Embodiment
The ternary alloy that the plating ternary alloy coating material of high anti-corrosion plated steel material of the present invention comprises is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, and described trace additives is selected from one or more among Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, the Ti.Some preferred specific embodiments of composition mass percent among the present invention have been listed in the table 1, but the content of each composition of the present invention do not limit to table 1 in listed numerical value, to those skilled in the art, can on the basis of the listed numerical range of table 1, rationally summarize and derive fully.
Table 1: each composition accounts for the quality percentage composition (%) of total mass.
Al |
Si |
Trace additives (total amount) Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, Ti |
Zn |
45 |
3 |
0.01 |
Surplus |
51 |
2.5 |
0.03 |
Surplus |
57 |
2.0 |
0.1 |
Surplus |
63 |
1.5 |
0.3 |
Surplus |
69 |
0.2 |
0.49 |
Surplus |
Table 2: each composition accounts for the quality percentage composition (%) of total mass.
Al |
Rare earth element |
Trace additives (total amount) Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, Ti |
Zn |
45 |
0.02 |
0.01 |
Surplus |
48 |
0.05 |
0.03 |
Surplus |
50 |
0.15 |
0.1 |
Surplus |
53 |
0.30 |
0.2 |
Surplus |
59 |
0.40 |
0.3 |
Surplus |
63 |
0.60 |
0.45 |
Surplus |
69 |
0.90 |
0.49 |
Surplus |
As can be seen from Table 1: the mass percent of the optimum of each composition of ternary alloy of the present invention is: Al:45~69%, Si:0.2~3%, the total content of trace additives are below 0.5%, and Zn is a surplus.
As can be seen from Table 2: the mass percent of the optimum of each composition of ternary alloy of the present invention is: Al:45~69%, and rare earth element: 0.02~0.9%, the total content of trace additives is below 0.5%, and Zn is a surplus.
Concrete content F e<0.3% of each composition of trace additives described in two tables wherein, B<0.1%, Pb<0.1%, Mn<0.1%, Ca<0.1%, Cu<0.1%, Sb<0.1%, Sn<0.1%, Ni<0.1%, Bi<0.1%, Ti<0.1%.
A kind of method of making the ternary alloy coating material, described ternary alloy is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, described trace additives is selected from one or more among Fe, Pb, Mn, Ca, Cu, Sb, Sn, Ni, the Bi, and the total content of described trace additives is below 0.5%.Various elements are carried out adding melting in the smelting furnace after the proportioning according to the above ratio, and smelting temperature is 750-800 ℃, passes through refining, slagging-off again through contactless stirring, pours into a mould alloy pig at last.
Induction stirring is adopted in wherein said contactless stirring.
Scouring agent uses rare gas element, and the metal air content is checked in concise end, and skimming after qualified is cast into ingot, and ingot casting is of a size of 1400 * 580 * 475mm, or 680 * 90 * 60mm.
Simultaneously, the invention also discloses a kind of high anti-corrosion plated steel material, described high anti-corrosion plated steel material plating ternary alloy coating material, described ternary alloy is made up of Zn, Al and Si or rare earth element, described coating material also comprises trace additives, described trace additives is selected from one or more among Fe, B, Pb, Mn, Ca, Cu, Sb, Sn, Ni, Bi, the Ti, and the total content of described trace additives is below 0.5%.
Adopt technical scheme of the present invention, compared with prior art, after adding trace additives, because by reasonably disposing the quality percentage of standby composition, the impact each other of each element and the negative interaction that produces have been overcome, therefore possessed obvious technique effect, simultaneously, this ternary alloy three-partalloy coating material adopts the Particular craft preparation, uniform ingredients segregation-free, remelting or remelting still can keep this effect after placing for a long time, and end slag growing amount is few, finished product high corrosion-resistant plated steel material has high corrosion resistance and excellent fatigue resistance energy, energy extensive use and household electrical appliances, building materials, automobile industry.