CN100463986C - Corrosion resistant brass alloy material for plate heat exchanger and processing technique thereof - Google Patents
Corrosion resistant brass alloy material for plate heat exchanger and processing technique thereof Download PDFInfo
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- CN100463986C CN100463986C CNB200710054868XA CN200710054868A CN100463986C CN 100463986 C CN100463986 C CN 100463986C CN B200710054868X A CNB200710054868X A CN B200710054868XA CN 200710054868 A CN200710054868 A CN 200710054868A CN 100463986 C CN100463986 C CN 100463986C
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Abstract
A corrosion-proof brass band for plate heat exchanger and its production are both disclosed herewith. It contains (wt%): Cn 76-79, Al 1.0-3.5, Ni 0.3-1.5, B 0.002-0.015, As 0.01-0.1, Ce 0.05-0.2, and balanced with Zn, and with impurity not more than 0.3. It is produced by: weighing, smelting, casting, hot rolling, end-surface milling, primary rolling, inter-annealing, cold rolling, inter-annealing, edge cutting, pre-rolling, inter-rolling, fine rolling, final annealing, surface treating, cutting, and packing. It is of size (0.4-8.5mm)X(300-1000mm)X(500-3000mm), performance of Rm not less than 410MPa, A11.3 not less than 40%, Hv1 not less than 90, grain 0.010-0.030mm, and Ra larger than 0.2um without scratches.
Description
Technical field
The invention belongs to technical field of nonferrous metal processing, refer more particularly to the complete processing of a kind of plate-type heat exchanger with the inhibited brass alloy material.
Background technology
Being used for plate-type heat exchanger (PHE) has at present become efficient, compact heat-exchange equipment, and is widely used in the industrial heat exchange field, as sea water desaltination, strand breed, underground heat, municipal sewage treatment etc.Because washing machine Working environment harshness requires its inner critical material when keeping certain intensity, wear resistance, also to have erosion resistance preferably in addition.Used before alloy material adopts stainless steel, pure titanium, nickel and nickel alloy material mostly, all has cost height, processing difficulties, defective such as high chlorine resistant ion etching not.
Summary of the invention
For addressing the above problem, the present invention has designed the complete processing of a kind of plate-type heat exchanger with the inhibited brass alloy material, and this inhibited brass alloy is material as an alternative, can satisfy the demand of materials such as PHE, antibacterial type washing machine.
In order to realize the foregoing invention purpose, the present invention has adopted following technical scheme:
Described plate-type heat exchanger inhibited brass alloy material, its component constitutes by weight percentage:
Cu:76～79%; Zn: surplus; Al:1.0～3.5%; Ni:0.3～1.5%; B:0.002～0.015%; As:0.01～0.1%; Unavoidable impurities total amount :≤0.3%; Or rare earth addition Ce:0.05～0.2%.
The described plate-type heat exchanger complete processing of inhibited brass alloy material, its complete processing is as follows:
1) batching: the composition proportion of Cu76～79%, Zn surplus, Al1.0～3.5%, Ni0.3～1.5%, B0.002～0.015%, As0.01～0.1% or interpolation rare earth addition Ce0.05～0.2% is prepared burden by weight percentage; Wherein Cu, Ni, B, As are the form addings with master alloys such as Cu-Ni, Cu-B, Cu-As;
2) melting: adopt in the frequency cored induction furnace atmosphere and carry out melting, order of addition(of ingredients): Zn ingot → Al ingot → Cu-Ni → Cu-B → Cu-As/ → or add addition of C e again; Smelting temperature: 1050～1250 ℃;
3) casting: adopt vertical semi-continuous casting, casting temp: 1000～1200 ℃, casting speed: 3.5～6m/h, crystallizer cooling water pressure: 0.05～0.35MPa.
4) heating: ingot casting adds the thermal recovery walking beam furnace, Heating temperature: 750～950 ℃, and heat-up time: 3～6 hours;
5) hot rolling: adopt hot mill train that the ingot casting of heating is carried out hot rolling, be rolled into slab;
6) mill face: adopt two-sided milling that slab is milled face;
7) breaking down: adopt blooming mill that the slab that milled face is carried out just rolling into strip;
8) annealing: be process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
9) cold rolling: as to adopt blooming mill to carry out cold rolling to moving back the strip that overdoes;
10) annealing: once more cold rolling strip is carried out process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
11) cut edge: adopt shearing device that strip is cut edge;
12) pre-finish rolling: adopt finishing mill strip to be carried out pre-finish rolling, working modulus: 35～70%, pre-passage of the rolling indwelling of finish rolling is carried out final finished finish rolling;
13) annealing: once more strip is carried out process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
14) finish rolling: adopt finishing mill to carry out finish rolling to the finished product strip or the roll coil of strip, working modulus: 35～70%;
15) finished products: Heating temperature: 500～750 ℃, soaking time: 3～6 hours;
16) surface treatment: adopt cleaning equipment that the production board band is carried out surface treatment;
17) shear: the production board band is sheared by technical requirements;
18) packing warehouse-in: according to the contract require the production board band is packed warehouse-in.
Owing to adopted technical scheme as mentioned above, the present invention has following superiority:
1) inhibited brass alloy material of the present invention can satisfy required corrosion resisting property demand in PHE, washing machine and other Application Areas product actual working environment fully, even the liquid that can be used for containing 19000 chlorions uses, for example: seawater.
2) cost of the present invention is low, and the course of processing is easy to controlledly, and the strip or the roll coil of strip specification of making the inhibited brass alloy material can reach: 0.4～8.5mm * 300～1000mm * 500～3000mm; Performance can reach: Rm 〉=410Mpa; A11.3 〉=40%; Hv1 〉=90; Grain fineness number: 0.010～0.030mm; Ra≤0.2 μ m and not having wipe to scratch.
3) the present invention has good deep drawability, can carry out brake forming processing.
Embodiment
The plate-type heat exchanger of the embodiment 1:0.4 * 300 * 500mm inhibited brass alloy roll coil of strip
Adopt frequency cored induction furnace to carry out melting, per distribution ratio is prepared burden by weight: Cu79%, Al3.5%, Ni1.5%, B0.015%, As0.1%, surplus Zn, total impurities 0.3% and rare earth addition Ce0.05%.Order of addition(of ingredients): add master alloy and rare earth addition Ce such as Zn ingot, Al ingot, Cu-Ni, Cu-B, Cu-As, smelting temperature: 1050 ℃.Vertical semi-continuous casting, casting speed: 3.5m/h, crystallizer cooling water pressure: 0.05MPa are adopted in casting; Heating: adopt walking beam furnace to carry out the ingot casting heating, Heating temperature: 750 ℃, 3 hours heat-up times; Annealing is divided into: process annealing and finished products, and the Heating temperature that process annealing is adopted: 400 ℃, soaking time: 4 hours; The Heating temperature that finished products adopts: 500 ℃, soaking time 3 hours; Pre-finish rolling, finish rolling: the working modulus of employing: 35%.
The plate-type heat exchanger of embodiment 2:8.5 * 1000 * 3000mm inhibited brass alloy sheet strip
Adopt frequency cored induction furnace to carry out melting, per distribution ratio is prepared burden by weight: Cu:76%, Al:1.0%, Ni:0.3%, B:0.002%, As:0.01%, surplus: Zn, total impurities: 0.3%, order of addition(of ingredients): add master alloys such as Zn ingot, Al ingot, Cu-Ni, Cu-B, Cu-As, smelting temperature: 1250 ℃.Vertical semi-continuous casting, casting speed: 6m/h, crystallizer cooling water pressure: 0.35MPa are adopted in casting; Heating: adopt walking beam furnace to carry out the ingot casting heating, Heating temperature: 950 ℃, 6 hours heat-up times; Annealing is divided into: process annealing and finished products, and the Heating temperature that process annealing is adopted: 650 ℃, soaking time: 10 hours; The Heating temperature that finished products adopts: 750 ℃, soaking time 6 hours; Pre-finish rolling, finish rolling: the working modulus of employing: 70%.
In sum: relevant hot rolling, mill face, breaking down, cold rolling, side cut, surface treatment, shearing, packing is put no longer division in storage.
Claims (2)
1. a plate-type heat exchanger is with the complete processing of inhibited brass alloy material, and its component constitutes by weight percentage: Cu:76～79%; Al:1.0～3.5%; Ni:0.3～1.5%; B:0.002～0.015%; As:0.01～0.1%; Zn: surplus; Unavoidable impurities total amount :≤0.3%; It is characterized in that: its complete processing is as follows:
1) batching: the composition proportion of Cu76～79%, Al1.0～3.5%, Ni0.3～1.5%, B0.002～0.015%, As0.01～0.1%, Zn surplus is prepared burden by weight percentage; Wherein Cu, Ni, B, As are the form addings with Cu-Ni, Cu-B, Cu-As master alloy;
2) melting: adopt in the frequency cored induction furnace atmosphere and carry out melting, order of addition(of ingredients): Zn ingot → Al ingot → Cu-Ni → Cu-B → Cu-As; Smelting temperature: 1050～1250 ℃;
3) casting: adopt vertical semi-continuous casting, casting temp: 1000～1200 ℃, casting speed: 3.5～6m/h, crystallizer cooling water pressure: 0.05～0.35MPa;
4) heating: ingot casting adds the thermal recovery walking beam furnace, Heating temperature: 750～950 ℃, and heat-up time: 3～6 hours;
5) hot rolling: adopt hot mill train that the ingot casting of heating is carried out hot rolling, be rolled into slab;
6) mill face: adopt two-sided milling that slab is milled face;
7) breaking down: adopt blooming mill that the slab that milled face is carried out just rolling into strip;
8) annealing: be process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
9) cold rolling: as to adopt blooming mill to carry out cold rolling to moving back the strip that overdoes;
10) annealing: cold rolling strip is carried out process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
11) cut edge: adopt shearing device that strip is cut edge;
12) pre-finish rolling: adopt finishing mill strip to be carried out pre-finish rolling, working modulus: 35～70%, pre-passage of the rolling indwelling of finish rolling is carried out final finished finish rolling;
13) annealing: strip is carried out process annealing, Heating temperature: 400～650 ℃, soaking time: 4～10 hours;
14) finish rolling: adopt finishing mill to carry out finish rolling to the finished product strip or the roll coil of strip, working modulus: 35～70%;
15) finished products: Heating temperature: 500～750 ℃, soaking time: 3～6 hours;
16) surface treatment: adopt cleaning equipment that the production board band is carried out surface treatment;
17) shear: the production board band is sheared by technical requirements;
18) packing warehouse-in: according to the contract require the production board band is packed warehouse-in.
2. plate-type heat exchanger according to claim 1 is characterized in that: add rare earth addition Ce0.05～0.2% again in the batching by weight percentage with the complete processing of inhibited brass alloy material; In adopting the frequency cored induction furnace atmosphere, carry out in the melting step of melting, add described addition of C e after the Cu-As of order of addition(of ingredients) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200710054868XA CN100463986C (en) | 2007-07-20 | 2007-07-20 | Corrosion resistant brass alloy material for plate heat exchanger and processing technique thereof |
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| CNB200710054868XA CN100463986C (en) | 2007-07-20 | 2007-07-20 | Corrosion resistant brass alloy material for plate heat exchanger and processing technique thereof |
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| CN101100714A CN101100714A (en) | 2008-01-09 |
| CN100463986C true CN100463986C (en) | 2009-02-25 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492798B (en) * | 2009-03-13 | 2010-12-29 | 无锡隆达金属材料有限公司 | Pickling free producing process for copper alloy tube |
| CN102237205A (en) * | 2010-04-27 | 2011-11-09 | 上海电科电工材料有限公司 | Alloy-copper embedded copying silver material of automobile electric appliance and method for making alloy-copper embedded copying silver material |
| CN102212713A (en) * | 2011-05-30 | 2011-10-12 | 宁波博威合金材料股份有限公司 | Novel antimicrobial copper alloy |
| CN102329981B (en) * | 2011-09-22 | 2013-07-31 | 安徽精诚铜业股份有限公司 | High-tensile property brass band for lamp holder and production process thereof |
| CN102392155A (en) * | 2011-11-02 | 2012-03-28 | 中铝洛阳铜业有限公司 | Corrosion resistant copper-zinc-aluminum alloy material |
| CN102676873A (en) * | 2012-05-29 | 2012-09-19 | 金川集团股份有限公司 | Aluminum brass alloy and preparation method thereof |
| CN103757472B (en) * | 2013-12-31 | 2016-04-27 | 安徽瑞庆信息科技有限公司 | A kind of containing cerium cutting brass alloy material and preparation method thereof |
| CN103740977B (en) * | 2014-01-16 | 2016-01-20 | 九星控股集团有限公司 | A kind of corrosion-resistant White Copper Tubes and preparation method thereof |
| CN105506358A (en) * | 2015-12-03 | 2016-04-20 | 中铝洛阳铜业有限公司 | Preparation process of environment-protecting and corrosion-resisting brass material for sea farming |
| CN105624595A (en) * | 2016-04-07 | 2016-06-01 | 安徽鑫科新材料股份有限公司 | Manufacturing technique of high-temperature-oxidation-resistant brass |
| CN109852825A (en) * | 2019-03-15 | 2019-06-07 | 江西凯安智能股份有限公司 | A kind of production technology of low earing rate brass band |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59205440A (en) * | 1983-05-02 | 1984-11-21 | Kobe Steel Ltd | Copper alloy for high temperature hydrostatic extrusion |
| CN1371429A (en) * | 1999-08-26 | 2002-09-25 | 图尔和安德森公司 | Die-casting brass alloy which is resistant to dezincification |
| CN1546700A (en) * | 2003-12-03 | 2004-11-17 | 海亮集团浙江铜加工研究所有限公司 | Etch resistant aluminium brass alloy |
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- 2007-07-20 CN CNB200710054868XA patent/CN100463986C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59205440A (en) * | 1983-05-02 | 1984-11-21 | Kobe Steel Ltd | Copper alloy for high temperature hydrostatic extrusion |
| CN1371429A (en) * | 1999-08-26 | 2002-09-25 | 图尔和安德森公司 | Die-casting brass alloy which is resistant to dezincification |
| CN1546700A (en) * | 2003-12-03 | 2004-11-17 | 海亮集团浙江铜加工研究所有限公司 | Etch resistant aluminium brass alloy |
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Effective date of registration: 20170824 Address after: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: China Aluminum Luoyang Copper Processing Co., Ltd. Address before: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: Zhonglu Luoyang Copper Industry Co., Ltd. |