Copper-bearing zinc impregnation agent and method for zinc impregnation of metal material

Abstract

The invention discloses a copper-bearing zinc impregnation agent and a method for zinc impregnation of a metal material. The copper-bearing zinc impregnation agent consists of zinc powder, lanthanum nitrate, ammonium chloride, copper powder and aluminum oxide. The method for the zinc impregnation of the metal material comprises the following steps: after a metal matrix is subjected to oil removal and rust removal treatment, the metal matrix and the copper-bearing zinc impregnation agent are placed in a sealed environment for annealing treatment and cooling. With the adoption of the copper-bearing zinc impregnation agent, the zinc activity can be improved, the zinc impregnation velocity can be raised, the self corrosion potential and the corrosion current density of the metal material can be reduced, and the corrosion resistance and the rigidity of the metal material can be improved.

Description

technical field

[0001] The invention relates to a copper-containing zinc-seeding agent, in particular to a copper-zinc zinc-seeding agent containing rare earth lanthanum, and a method for zinc-seeding metal materials. Background technique

[0002] Due to its excellent performance and simple preparation process, metal materials have become the most widely used materials in the current range and amount. Among them, steel materials are the most widely used, ranging from cutting-edge technology to daily life.

[0003] Corrosion is currently one of the most important reasons for the failure of steel materials; corrosion will directly destroy and change the microstructure of steel materials, which will change the appearance of steel materials and reduce the macroscopic mechanical properties such as hardness and plasticity. In addition, part of the material failure caused by corrosion cannot be seen directly from the surface of the material, which has buried hidden dangers for peop...

Examples

Embodiment 1

[0036] Step 1, weigh 72% of 200-mesh pure zinc powder, 2% of ammonium chloride, 3% of lanthanum nitrate, 21.5% of aluminum oxide, and 1.5% of pure copper powder by mass percentage, the sum of the mass percentages of the above components is 100 %;

[0037] In step 2, the materials in step 1 are uniformly mixed, and ball milled for 1 hour by a horizontal planetary ball mill to obtain the copper-containing zinc-seeding agent.

[0038] Step 3, use wire cutting to obtain a sample with a size of 10*10*3mm, and use sandpaper with a particle size of 280#, 400#, and 600# to grind on a pre-grinder until it is bright.

[0039] In step 4, the sample in step 3 is subjected to pretreatment. That is, alkali washing-water washing-acid washing-water washing-drying for later use.

[0040] Step 5, put the copper-containing zinc-seeding agent obtained in step 2 into a sealed crucible together with the sample, place it in a tubular resistance furnace, heat it up to 455°C with the furnace and kee...

Embodiment 2

[0047] Step 1, weigh 72% of 200-mesh pure zinc powder, 2% of ammonium chloride, 3% of lanthanum nitrate, 21% of aluminum oxide, and 2% of pure copper powder by mass percentage, the sum of the mass percentages of the above components is 100 %;

[0048] In step 2, the materials in step 1 are uniformly mixed, and ball milled for 1 hour by a horizontal planetary ball mill to obtain the copper-containing zinc-seeding agent.

[0049] Step 3, use wire cutting to obtain a sample with a size of 10*10*3mm, and use sandpaper with a particle size of 280#, 400#, and 600# to grind on a pre-grinder until it is bright.

[0050] In step 4, the sample in step 3 is subjected to pretreatment. That is, alkali washing-water washing-acid washing-water washing-drying for later use.

[0051]Step 5, put the copper-containing zinc-seeding agent obtained in step 2 into a sealed crucible together with the sample, place it in a tubular resistance furnace, heat it up to 445°C with the furnace and keep it ...

technical field

[0001] The invention relates to a copper-containing zinc-seeding agent, in particular to a copper-zinc zinc-seeding agent containing rare earth lanthanum, and a method for zinc-seeding metal materials. Background technique

[0002] Due to its excellent performance and simple preparation process, metal materials have become the most widely used materials in the current range and amount. Among them, steel materials are the most widely used, ranging from cutting-edge technology to daily life.

[0003] Corrosion is currently one of the most important reasons for the failure of steel materials; corrosion will directly destroy and change the microstructure of steel materials, which will change the appearance of steel materials and reduce the macroscopic mechanical properties such as hardness and plasticity. In addition, part of the material failure caused by corrosion cannot be seen directly from the surface of the material, which has buried hidden dangers for peop...

Examples

Embodiment 1

[0036] Step 1, weigh 72% of 200-mesh pure zinc powder, 2% of ammonium chloride, 3% of lanthanum nitrate, 21.5% of aluminum oxide, and 1.5% of pure copper powder by mass percentage, the sum of the mass percentages of the above components is 100 %;

[0037] In step 2, the materials in step 1 are uniformly mixed, and ball milled for 1 hour by a horizontal planetary ball mill to obtain the copper-containing zinc-seeding agent.

[0038] Step 3, use wire cutting to obtain a sample with a size of 10*10*3mm, and use sandpaper with a particle size of 280#, 400#, and 600# to grind on a pre-grinder until it is bright.

[0039] In step 4, the sample in step 3 is subjected to pretreatment. That is, alkali washing-water washing-acid washing-water washing-drying for later use.

[0040] Step 5, put the copper-containing zinc-seeding agent obtained in step 2 into a sealed crucible together with the sample, place it in a tubular resistance furnace, heat it up to 455°C with the furnace and kee...

Embodiment 2

[0047] Step 1, weigh 72% of 200-mesh pure zinc powder, 2% of ammonium chloride, 3% of lanthanum nitrate, 21% of aluminum oxide, and 2% of pure copper powder by mass percentage, the sum of the mass percentages of the above components is 100 %;

[0048] In step 2, the materials in step 1 are uniformly mixed, and ball milled for 1 hour by a horizontal planetary ball mill to obtain the copper-containing zinc-seeding agent.

[0049] Step 3, use wire cutting to obtain a sample with a size of 10*10*3mm, and use sandpaper with a particle size of 280#, 400#, and 600# to grind on a pre-grinder until it is bright.

[0050] In step 4, the sample in step 3 is subjected to pretreatment. That is, alkali washing-water washing-acid washing-water washing-drying for later use.

[0051]Step 5, put the copper-containing zinc-seeding agent obtained in step 2 into a sealed crucible together with the sample, place it in a tubular resistance furnace, heat it up to 445°C with the furnace and keep it ...

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