CN117878545A - Casting process of traction storage battery pole - Google Patents
Casting process of traction storage battery pole Download PDFInfo
- Publication number
- CN117878545A CN117878545A CN202311783254.0A CN202311783254A CN117878545A CN 117878545 A CN117878545 A CN 117878545A CN 202311783254 A CN202311783254 A CN 202311783254A CN 117878545 A CN117878545 A CN 117878545A
- Authority
- CN
- China
- Prior art keywords
- casting
- core body
- alloy
- tin
- storage battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 84
- 238000003860 storage Methods 0.000 title claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 43
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- 229910000978 Pb alloy Inorganic materials 0.000 claims abstract description 26
- 229910001128 Sn alloy Inorganic materials 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- QCEUXSAXTBNJGO-UHFFFAOYSA-N [Ag].[Sn] Chemical compound [Ag].[Sn] QCEUXSAXTBNJGO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009713 electroplating Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 12
- 238000007514 turning Methods 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract description 2
- 238000007747 plating Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a casting process of a traction storage battery post, which comprises the following steps: 1) Preparing a hard alloy casting; 2) Machining a hard alloy casting; 3) Performing corrosion resistance treatment on the surface of the core body, and electroplating silver-tin alloy on the outer surface, wherein the silver content of the silver-tin alloy is between 30% and 70%, and the thickness of a coating is 0.6-8 microns; 4) Then, the outer surface of the core body is hot dipped in tin alloy. The design of each step of the casting process of the invention gradually strengthens the binding tightness of the hard alloy casting and the lead alloy, and mutually supplements, and the pole post after the process treatment is tightly bound with the lead alloy when the torque value is 90-100N.m, thereby being beneficial to improving the sealing and conductive performance when the traction storage battery is in soft connection, avoiding the corrosion heating phenomenon caused by poor contact in the service period of the traction storage battery and improving the use reliability of the traction storage battery.
Description
Technical Field
The invention relates to the technical field of casting of storage battery poles, in particular to a casting process of traction storage battery poles.
Background
At present, two main methods for manufacturing the traction battery post are: the lead alloy after high temperature melting is directly cast in pole mould and cooled to form, and is mainly used in welded accumulator. The other type of battery is formed by casting a copper core with threads and lead alloy together, and is used for batteries connected by flexible connecting wires, the batteries are connected by the flexible connecting wires, special bolts are needed for fastening and connecting, the surface of the copper core and the lead alloy are required to be firmly combined, and the joint of a casting and the lead alloy cannot be loosened under certain torsion, so that the battery pole is tightly connected with the flexible connecting wires, and good sealing and conducting effects are achieved. When the common casting technology is used, the casting and the lead surface are poorly combined during the pole manufacturing, and when the flexible wires are connected, the joint of the casting and the lead is easy to loosen, and the contact is poor and the heat is generated, so that the normal use of the storage battery is affected.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a traction storage battery pole casting process, which can ensure that a hard alloy casting and a lead alloy are well combined when the traction storage battery pole is manufactured, and the torsion resistance performance is greatly improved, so that the tightness and the reliability of connection when the traction storage battery is in flexible connection can be improved, and the overall conductivity of a storage battery pack is improved.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a traction storage battery post casting process, which comprises the following steps:
1) Preparing a hard alloy casting; 2) Machining a hard alloy casting; 3) The surface of the core body is subjected to corrosion resistance treatment, silver-tin alloy is electroplated on the surface, the silver content of the silver-tin alloy is between 30% and 70%, and the thickness of the coating is 0.6-8 microns; 4) Then, the outer surface of the core body is subjected to hot tin dipping, and the tin content in the hot tin dipped tin alloy is between 90 and 97 percent; 5) Heating and preserving the heat of the tin-dipped core body, keeping the heating temperature between 70 and 95 ℃, and putting the core body into a forming die when the core body is hot; 6) Then, rapidly pouring molten lead alloy into a forming die at one time, wherein the heating temperature is 450-500 ℃; 7) Limiting and stamping the casting by a special stamping machine; 8) And turning the bottom of the stamped pole by using a special lathe to achieve the required thickness dimension.
Preferably, the hard alloy casting is prepared by one-time stamping forming of hard alloy material aluminum magnesium alloy 7075.
Preferably, the hard alloy casting is processed into a hard alloy casting, and the hard alloy casting is subjected to turning, drilling, tapping and polishing to prepare a required core body, wherein the bottom appearance of the core body is a hexagonal body, the height of the hexagonal body is 4mm, the upper turning is phi 14.3mm, the internal thread is M9, and the tapping depth is 24M.
Preferably, the specific operation steps of the corrosion-resistant treatment of the surface of the core body are as follows:
thermally activating the surface of the core body at 110-120 ℃ for 5-10min;
then the temperature is reduced to 50-55 ℃ at the speed of 1-3 ℃/min, the heat preservation treatment is carried out, the mixture is immersed into the treatment liquid for ultrasonic infiltration treatment, and the treatment is finished, washed and dried.
The temperature of 110-120 ℃ is adopted for thermal activation, then the temperature of 1-3 ℃/min is matched with the temperature to be reduced to 50-55 ℃, the surface activity efficiency of the core body is optimized, and then the ultrasonic infiltration treatment and the treatment liquid are matched, so that the corrosion resistance of the product is improved.
Preferably, the ultrasonic power of the ultrasonic infiltration treatment is 350-400W, and the ultrasonic time is 1-2h.
Preferably, the preparation method of the treatment fluid comprises the following steps:
adding 2-5 parts of 5-10% sodium dodecyl benzene sulfonate solution and 1-3 parts of lanthanum chloride solution into 10-15 parts of sodium silicate solution, and finally adding 1-3 parts of nano magnesium oxide and 1-2 parts of nano silicon dioxide, and stirring and uniformly mixing.
Preferably, the mass fraction of the sodium silicate solution is 10-15%.
Preferably, the particle size of the nano magnesium oxide is 5-10nm, and the particle size of the nano silicon dioxide is 3-6nm.
Preferably, the stamping pressure in the step 7) is 1200-2800 psi.
Compared with the prior art, the invention has the following beneficial effects:
according to the traction storage battery post casting process, the first layer of plating layers formed by electroplating the silver-tin alloy on the inner surface and the outer surface of the hard alloy casting, and the inner plating layers and the outer plating layers improve the corrosion resistance of the hard alloy casting; and then carries on the hot tin dipping treatment again, this second tin dipping is favorable to promoting the bond strength of hard alloy casting and lead alloy; and before the hard alloy casting is used, the heating temperature is kept between 70 ℃ and 95 ℃, then the hard alloy casting is placed into a special stamping forming die in sequence while the hard alloy casting is hot, the molten lead alloy with the heating temperature of 450 ℃ to 500 ℃ is poured into the die at one time, the casting is subjected to limit stamping, the heating temperature is set to enable the hard alloy casting and the lead alloy to be in an optimal bonding state, the stamping operation is carried out by using the pressure of 1200 psi to 2800psi, the bonding force of the hard alloy casting and the lead alloy is enhanced, and finally the bonding force of the hard alloy casting and the lead alloy is further greatly improved, and the bonding is firm. The design of each step of the casting process gradually strengthens the combination tightness of the hard alloy casting and the lead alloy, and mutually supplements, and the pole post after the process treatment is tightly combined with the lead alloy at the torque value of 90-100N.m, so that the soft connection sealing and conductivity of the traction storage battery can not be loosened, the corrosion heating phenomenon caused by poor contact is avoided in the service period of the traction storage battery, and the use reliability of the traction storage battery is improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The casting process of the traction storage battery pole column of the embodiment comprises the following steps:
1) Preparing a hard alloy casting; 2) Machining a hard alloy casting; 3) Performing corrosion resistance treatment on the surface of the core body, and electroplating silver-tin alloy on the outer surface, wherein the silver content of the silver-tin alloy is between 30% and 70%, and the thickness of a coating is 0.6-8 microns; 4) Then, the outer surface of the core body is subjected to hot tin dipping, and the tin content in the hot tin dipped tin alloy is between 90 and 97 percent; 5) Heating and preserving the heat of the tin-dipped core body, keeping the heating temperature between 70 and 95 ℃, and putting the core body into a forming die when the core body is hot; 6) Then, rapidly pouring molten lead alloy into a forming die at one time, wherein the heating temperature is 450-500 ℃; 7) Limiting and stamping the casting by a special stamping machine; 8) And turning the bottom of the stamped pole by using a special lathe to achieve the required thickness dimension.
The hard alloy casting of the embodiment is prepared by using a hard alloy material aluminum magnesium alloy 7075 to be formed into the hard alloy casting through one-step punching.
The hard alloy casting of the embodiment is processed into a hard alloy casting, and the hard alloy casting is subjected to turning, drilling, tapping and polishing to prepare a required core body, wherein the bottom appearance of the core body is a hexagonal body, the height of the hexagonal body is 4mm, the upper turning is phi 14.3mm, the internal thread is M9, and the tapping depth is 24M.
The specific operation steps of the corrosion-resistant treatment of the surface of the core body in the embodiment are as follows:
thermally activating the surface of the core body at 110-120 ℃ for 5-10min;
then the temperature is reduced to 50-55 ℃ at the speed of 1-3 ℃/min, the heat preservation treatment is carried out, the mixture is immersed into the treatment liquid for ultrasonic infiltration treatment, and the treatment is finished, washed and dried.
The ultrasonic power of the ultrasonic infiltration treatment of the embodiment is 350-400W, and the ultrasonic time is 1-2h.
The preparation method of the treatment fluid of the embodiment comprises the following steps:
adding 2-5 parts of 5-10% sodium dodecyl benzene sulfonate solution and 1-3 parts of lanthanum chloride solution into 10-15 parts of sodium silicate solution, and finally adding 1-3 parts of nano magnesium oxide and 1-2 parts of nano silicon dioxide, and stirring and uniformly mixing.
The mass fraction of the sodium silicate solution of the embodiment is 10-15%.
The particle size of the nano magnesium oxide of the embodiment is 5-10nm, and the particle size of the nano silicon dioxide is 3-6nm.
The stamping pressure in step 7) of the embodiment is 1200-2800 psi.
Example 1.
The invention provides a casting process of a traction storage battery post, which comprises the following specific steps:
step 1: forming a hard alloy casting by one-step stamping of a hard alloy material aluminum magnesium alloy 7075;
step 2: the hard alloy casting is turned, drilled, tapped and polished to produce the desired core,
the bottom appearance of the core body is a hexagonal body, the height of the hexagonal body is 2mm, the upper part is turned to be phi 14.8mm, the internal thread is M10, and the tapping depth is 24mm.
Step 3: silver-tin alloy is electroplated on the outer surface of the core body, wherein the silver content of the silver-tin alloy is 30% -40%, the balance is tin, the thickness of the coating is 0.6-3 microns, and the coating is smooth and uniform inside and outside so as to improve the corrosion resistance of the core body in acid liquor.
Step 4: carrying out hot tin dipping on the outer surface of the bottom of the electroplated core body, wherein the tin content of tin alloy subjected to the hot tin dipping is 92-94%, and the balance is lead;
step 5: the core body after being dipped with tin is placed in an oven for heating and heat preservation, and the heating temperature is kept between 80 ℃ and 90 ℃; taking out the core body when the core body is hot, and sequentially placing the core body into a special casting forming die;
step 6: pouring the lead alloy with the heating temperature of 450-500 ℃ into a forming die for casting forming rapidly and sufficiently at one time by using an appliance;
step 7: the casting is rapidly stamped when the casting is hot by using a special stamping tool and a stamping machine, and the stamping pressure of the stamping machine is set between 1200 psi and 1700 psi, so that the lead alloy is firmly combined with the core body;
step 8: and turning the bottom of the stamped pole by using a special lathe, wherein the thickness dimension of the bottom is 7-9mm.
Example 2:
the invention provides a casting process of a traction storage battery post, which comprises the following specific steps:
step 1: forming a hard alloy casting by one-step stamping of a hard alloy material aluminum magnesium alloy 7075;
step 2: the hard alloy casting is turned, drilled, tapped and polished to produce the desired core,
the bottom appearance of the core body is a hexagonal body, the height of the hexagonal body is 4mm, the upper part is turned to be phi 14.3mm, the internal thread is M9, and the tapping depth is 24mm.
Step 3: silver-tin alloy is electroplated on the outer surface of the core body, wherein the silver content of the silver-tin alloy is 40% -50%, the balance is tin, the thickness of a plating layer is 3-5 microns, and the plating layer is smooth and uniform inside and outside so as to improve the corrosion resistance of the core body in acid liquor.
Step 4: carrying out hot tin dipping on the outer surface of the bottom of the electroplated core body, wherein the tin content of the tin alloy subjected to the hot tin dipping is 60-70%, and the balance is lead;
step 5: the core body after being dipped with tin is placed in an oven for heating and heat preservation, and the heating temperature is kept between 70 ℃ and 80 ℃; taking out the core body when the core body is hot, and sequentially placing the core body into a special casting forming die;
step 6: pouring the lead alloy with the heating temperature of 450-500 ℃ into the container rapidly and sufficiently at one time
Casting and molding in a molding die;
step 7: and (3) rapidly stamping the casting while the casting is hot by using a special stamping tool and a stamping machine, wherein the stamping pressure of the stamping machine is set between 1800 and 2300 psi, so that the lead alloy and the core body are firmly combined.
Step 8: and turning the bottom of the stamped pole by using a special lathe, wherein the thickness dimension of the bottom is 10-13mm.
Example 3:
the invention provides a casting process of a traction storage battery post, which comprises the following specific steps:
step 1: forming a hard alloy casting by one-step stamping of a hard alloy material aluminum magnesium alloy 7050;
step 2: the hard alloy casting is turned, drilled, tapped and polished to produce the desired core,
the bottom appearance of the core body is a hexagonal body, the height of the hexagonal body is 3mm, the upper part is turned to be phi 14.1mm, the internal thread is M10, and the tapping depth is 22mm.
Step 3: silver-tin alloy is electroplated on the outer surface of the core body, wherein the silver content of the silver-tin alloy is 50% -60%, the balance is tin, the thickness of a coating is 6 microns, and the coating is smooth and uniform inside and outside so as to improve the corrosion resistance of the core body in acid liquor.
Step 4: carrying out hot tin dipping on the outer surface of the bottom of the electroplated core body, wherein the tin content of the tin alloy subjected to the hot tin dipping is 70-80%, and the balance is lead;
step 5: the core body after being dipped with tin is placed in an oven for heating and heat preservation, and the heating temperature is kept between 90 ℃ and 95 ℃; taking out the core body when the core body is hot, and sequentially placing the core body into a special casting forming die;
step 6: pouring the lead alloy with the heating temperature of 450-480 ℃ into a forming die for casting forming rapidly and sufficiently at one time by using an appliance;
step 7: and (3) rapidly stamping the casting while the casting is hot by using a special stamping tool and a stamping machine, wherein the stamping pressure of the stamping machine is set between 2300 and 2800psi, so that the lead alloy and the core body are firmly combined.
Step 8: and turning the bottom of the stamped pole by using a special lathe, wherein the thickness dimension of the bottom is 5-6mm. When the silver and tin contents in the silver-tin alloy are different, the alloy has different melting points and different performances, namely the silver-tin alloy with different silver contents has different properties. In the steps 2 and 3 of the embodiment of the invention, silver-tin alloy with the silver content of 40% -50% is selected respectively, the thickness of the plating layer is 3-5 microns, the selected corrosion resistance is optimal, the value of the plating layer thickness optimizes the corrosion resistance, the stamping pressure of 1900-2200 psi improves the adhesive force between the lead alloy and the core body, the tin content in the tin alloy subjected to hot dipping is 75%, the plasticity is outstanding, and meanwhile, the oxidation resistance is excellent, so that the bonding strength of the core body and the lead alloy can be enhanced.
The pole post for traction storage battery manufactured by the casting process of the three embodiments can not loosen each other between the core body and the lead alloy when the detected torsion value reaches 90-100N.m in connection test, and the binding force and the corrosion resistance are greatly improved. In addition, the whole pole manufactured by the three embodiments is soaked in 50% dilute sulfuric acid solution for 480 hours, the core body is free from corrosion and falling, and the connection reliability of the traction storage battery is improved. In conclusion, the pole for the traction storage battery, which is prepared by the invention, avoids the phenomenon of heating damage caused by poor contact in the service period of the traction storage battery, improves the reliability of the battery, and prolongs the service period of the traction storage battery.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The casting process of the traction storage battery pole is characterized by comprising the following steps of:
1) Preparing a hard alloy casting; 2) Machining a hard alloy casting; 3) Performing corrosion resistance treatment on the surface of the core body, and electroplating silver-tin alloy on the outer surface, wherein the silver content of the silver-tin alloy is between 30% and 70%, and the thickness of a coating is 0.6-8 microns; 4) Then, the outer surface of the core body is subjected to hot tin dipping, and the tin content in the hot tin dipped tin alloy is between 90 and 97 percent; 5) Heating and preserving the heat of the tin-dipped core body, keeping the heating temperature between 70 and 95 ℃, and putting the core body into a forming die when the core body is hot; 6) Then, rapidly pouring molten lead alloy into a forming die at one time, wherein the heating temperature is 450-500 ℃; 7) Limiting and stamping the casting by a special stamping machine; 8) And turning the bottom of the stamped pole by using a special lathe to achieve the required thickness dimension.
2. The traction battery post casting process of claim 1, wherein the cemented carbide casting is prepared as a cemented carbide casting formed by one-time stamping using cemented carbide material aluminum magnesium alloy 7075.
3. The process for casting the pole of the traction storage battery according to claim 1, wherein the hard alloy casting is manufactured into a core body by turning, drilling, tapping and polishing the hard alloy casting, the bottom appearance of the core body is a hexagon, the height of the hexagon is 4mm, the upper turning is phi 14.3mm, the internal thread is M9, and the tapping depth is 24M.
4. The traction battery post casting process according to claim 1, wherein the specific operation steps of the corrosion-resistant treatment of the surface of the core body are as follows:
thermally activating the surface of the core body at 110-120 ℃ for 5-10min;
then the temperature is reduced to 50-55 ℃ at the speed of 1-3 ℃/min, the heat preservation treatment is carried out, the mixture is immersed into the treatment liquid for ultrasonic infiltration treatment, and the treatment is finished, washed and dried.
5. The process for casting a traction battery post according to claim 4, wherein the ultrasonic power of the ultrasonic infiltration treatment is 350-400W and the ultrasonic time is 1-2h.
6. The process for casting a post for a traction battery according to claim 4, wherein the treating fluid is prepared by the following steps:
adding 2-5 parts of 5-10% sodium dodecyl benzene sulfonate solution and 1-3 parts of lanthanum chloride solution into 10-15 parts of sodium silicate solution, and finally adding 1-3 parts of nano magnesium oxide and 1-2 parts of nano silicon dioxide, and stirring and uniformly mixing.
7. The traction battery post casting process according to claim 6, wherein the mass fraction of the sodium silicate solution is 10-15%.
8. The process for casting a traction battery post according to claim 6, wherein the nano magnesium oxide has a particle size of 5-10nm and the nano silicon dioxide has a particle size of 3-6nm.
9. The process for casting a post for a traction battery according to claim 1, wherein the stamping pressure in the step 7) is 1200-2800 psi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311783254.0A CN117878545A (en) | 2023-12-22 | 2023-12-22 | Casting process of traction storage battery pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311783254.0A CN117878545A (en) | 2023-12-22 | 2023-12-22 | Casting process of traction storage battery pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117878545A true CN117878545A (en) | 2024-04-12 |
Family
ID=90583884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311783254.0A Pending CN117878545A (en) | 2023-12-22 | 2023-12-22 | Casting process of traction storage battery pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117878545A (en) |
-
2023
- 2023-12-22 CN CN202311783254.0A patent/CN117878545A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103706939B (en) | A kind of diffusion connection method of tungsten copper dissimilar metal | |
| CN117878545A (en) | Casting process of traction storage battery pole | |
| CN112072060B (en) | High-torsion corrosion-resistant pole forming process | |
| CN109449133A (en) | A kind of copper plating pure nickel bonding wire and preparation method thereof | |
| CN110396703A (en) | The preparation method of monoblock type diamond core boring bit | |
| CN109622967B (en) | Method for manufacturing stainless steel-magnesium interlocking bimetal complex-shaped part in additive manufacturing mode | |
| CN101425577A (en) | Lead-acid accumulator anode diachylon and preparation method thereof | |
| CN101428390B (en) | Method for manufacturing gold alloy foil | |
| CN110681848A (en) | Cast welding method for pole lug of lead-acid storage battery pole plate | |
| CN104099494A (en) | Air conditioner aluminum foil material and surface treatment method thereof | |
| CN108754359A (en) | A kind of manufacturing method of motor in electric automobile shell | |
| CN110358989A (en) | A kind of manufacturing method of aluminium-resin composite materials | |
| CN100556611C (en) | A kind of manufacture method of not having the deterioration latency stage aluminum strontium alloy wire rod with high content of strontium | |
| CN101673817B (en) | Manufacturing technique of copper terminal of lead-acid storage battery | |
| CN105861923A (en) | Casting method for seawater-corrosion-resistant composite ball valve body | |
| CN101969108A (en) | Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method | |
| CN108754360A (en) | A kind of particle reinforced aluminum alloy New energy automobile motor shell | |
| CN205669070U (en) | Electrolytic zinc negative electrode conducting beam | |
| CN110098127B (en) | Single bridge wire frame deburring process | |
| CN105964987A (en) | Casting method for high-strength and impact-resistant valve body of sewage vent valve | |
| CN103789588A (en) | Magnesium-based seawater self-dissolving material and preparation method thereof | |
| CN108087092A (en) | A kind of engine of high efficiency and heat radiation | |
| CN111975157A (en) | Oxidation-resistant corrosion-resistant soldering bit at high temperature and manufacturing method thereof | |
| CN114959354B (en) | Steel-brass bimetal material and manufacturing process and die thereof | |
| CN200945696Y (en) | Immersion-producing stainless steel glove mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |