CN110935725B - Processing technology of special-shaped material for SIM card holder of titanium alloy mobile phone - Google Patents
Processing technology of special-shaped material for SIM card holder of titanium alloy mobile phone Download PDFInfo
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- CN110935725B CN110935725B CN201911112252.2A CN201911112252A CN110935725B CN 110935725 B CN110935725 B CN 110935725B CN 201911112252 A CN201911112252 A CN 201911112252A CN 110935725 B CN110935725 B CN 110935725B
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- titanium alloy
- rolling
- card holder
- sim card
- mobile phone
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a processing technology of a special-shaped material for a SIM card holder of a titanium alloy mobile phone, which comprises the steps of continuously circulating for twelve times rolling and heat treating a titanium alloy bar, wherein a pair of rollers are adopted in the rolling procedure for rolling the titanium alloy bar, two rollers of the pair of rollers are respectively provided with an annular bulge and an annular recess, the annular bulge and the annular recess are matched and arranged, and the annular bulge and the annular recess are arranged concentrically with the rollers; the heat treatment adopts a tube furnace, the heat treatment temperature is 600 +/-20 ℃, the length of the tube furnace is 6 meters, and the speed of the titanium alloy bar passing through the tube furnace is 3 m/min. The method replaces the traditional CNC machining mode with rolling, saves labor and materials, saves time, solves the problem that the TC4 titanium alloy is difficult to machine and form in a multi-rolling heat treatment mode, rolls to form the special-shaped material of the SIM card holder of the mobile phone, reduces the processing amount of the SIM card holder of the mobile phone after subsequent engraving, and is large in specific strength and non-magnetic due to the special-shaped material of the SIM card holder made of the TC4 titanium alloy.
Description
Technical Field
The invention relates to a processing technology of a special-shaped material for a titanium alloy mobile phone SIM card holder.
Background
Most of the material of the card slot (such as SIM card holder and memory card holder) and the key (such as volume key and power-off key) in the traditional mobile phone is made of plastic material, and then a layer of metallic paint is coated on the surface of the card slot (such as SIM card holder and memory card holder) and the key in order to increase the beauty and the metal texture of the mobile phone, but the card slot and the key are easy to damage or fade due to abrasion in the using process because of lower strength and poorer abrasion resistance. With the design requirement of thinner and thinner mobile phones, in order to realize a thin design concept, the SIM card holder structure is generally used to replace the design of the SIM card or the memory card. After the SIM card or the memory card is replaced for a certain number of times, the SIM card slot may have poor elasticity of the contact pins or loose slots, which may result in poor contact of the SIM card and failure of normal operation. In addition, if the metal card holder is adopted, the weight is inevitably heavier, and the stricter and stricter light-weight requirements are difficult to meet, and the metal card holder has some magnetism, so that the communication performance of the mobile phone is influenced in the long-term use process of the more and more delicate mobile phone; in order to solve the problem, titanium alloy is adopted by the same lines to prepare the mobile phone card holder, but the processing is troublesome, a lot of waste materials are generated, the cost of the titanium alloy is high, and thus the raw material waste is serious and the manufacturing cost of the mobile phone card holder is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a processing technology of a special-shaped material for a titanium alloy mobile phone SIM card holder, which abandons the traditional CNC machining mode and uses rolling instead, so that the labor, the material and the time are saved, and also solves the problem that TC4 titanium alloy is difficult to process and form, the special-shaped material for the mobile phone SIM card holder is formed by rolling, the processing amount of the mobile phone SIM card holder formed by subsequent engraving is reduced, and the special-shaped material for the SIM card holder made of the TC4 titanium alloy has large specific strength and no magnetism.
In order to achieve the purpose, the technical scheme of the invention is to design a processing technology of a special-shaped material for a titanium alloy mobile phone SIM card holder, which comprises the steps of rolling a titanium alloy bar material for twelve times in a continuous cycle and carrying out heat treatment to prepare a profiling section material of the mobile phone SIM card holder, wherein the rolling procedure adopts at least one pair of rollers to roll the titanium alloy bar material, the curved surface of the roller for rolling is provided with annular bulges and/or annular depressions, the annular bulges and the annular depressions are concentrically arranged with the corresponding rollers, and the annular bulges and the annular depressions are in profile-like adaptation with the shape of the section material after each rolling; the heat treatment adopts a tube furnace, the heat treatment temperature is 600 +/-20 ℃, the length of the tube furnace is 6 meters, and the speed of the titanium alloy bar passing through the tube furnace is 3 m/min. The special-shaped material for the SIM card holder of the mobile phone is prepared from the titanium alloy, so that the SIM card holder is nonmagnetic and does not influence the communication performance of the mobile phone; the raw materials are rolled by the pair rollers arranged in a profiling mode for multiple times, so that the shape of the profile formed after rolling is almost similar to that of the final SIM card holder, subsequent processing amount is reduced, waste of the raw materials is reduced to the maximum extent, the mode of CNC machining is not adopted, rolling is adopted, labor, materials and time are saved, and the problem that the TC4 titanium alloy is difficult to process and form is solved.
The further technical scheme is that the titanium alloy bar is made of titanium alloy TC 4. The specific strength of the titanium alloy TC4 is far greater than that of stainless steel, so that the manufactured mobile phone card support meets the requirement of the current mobile phone on increasingly lighter weight.
The further technical scheme is that the rolling quantity of each rolling procedure is 6-8%.
The further technical proposal is that air with oxygen and hydrogen removed is introduced as protective gas in the heat treatment process.
The technical scheme is that in the process of continuously circulating for twelve times rolling and heat treatment of the titanium alloy bar, the rivet holes on the clamp body of the clamp support are machined into blind holes through continuous circulating rolling and then are machined into rivet holes through CNC engraving. That is, when rolling, except adopting the roll that the rolling surface shape is similar with the card support shape, still set up on the rolling surface of roll and hold in the palm its card body with the card and go up the cyclic annular arch and the cyclic annular is sunken of rivet hole adaptation, through rolling the blind hole that forms the shape extremely closely rivet hole step by step after many times, reduce the titanium alloy waste volume that follow-up CNC sculpture processed out the rivet hole.
The further technical scheme is that three to four continuous circulating rolling and heat treatment processes of rolling and heat treatment of the inner side wall of the clamp body of the clamp support are further arranged in the continuous circulating twelve-time rolling and heat treatment process of the titanium alloy bar. When the inner side wall of the card body is rolled, the roll shaft of the roll in the process is vertical to the roll shaft of the roll in the process (the titanium alloy bar is continuously rolled for twelve times in a circulating way), and because the processing process mode is that the rolling is carried out for multiple times to enable the raw material to gradually approach to the shape of a finished product, the process of 'three to four times rolling and heat treatment for the inner side wall of the card body of the card holder' can be arranged after the non-final three-four processes of 'continuously rolling and heat treatment for twelve times for titanium alloy bar', although the roll is used for bearing the groove for placing the SIM card in order to roll the inner side wall of the card holder's card body, the roll can extrude the inner side wall part of the card holder's card body, but because the roll is arranged in the former eight times rolling of 'continuously rolling and heat treatment for twelve times for titanium alloy bar', the titanium alloy bar can be continuously rolled for twelve times in a circulating way, Heat treatment "to complete the subsequent rolling that is closer to the final finished shape.
The invention has the advantages and beneficial effects that: rolling instead of the traditional CNC machining mode is adopted, so that labor, materials and time are saved, the problem that the TC4 titanium alloy is difficult to machine and form is solved by a multi-rolling heat treatment mode, the SIM card holder special-shaped material for the mobile phone is formed by rolling, the machining amount of the SIM card holder which is subsequently carved and machined into the SIM card holder is reduced, and the special-shaped material for the SIM card holder which is made of the TC4 titanium alloy has high specific strength and no magnetism; the special-shaped material for the SIM card holder of the mobile phone is prepared from the titanium alloy, so that the SIM card holder is nonmagnetic and does not influence the communication performance of the mobile phone; the raw materials are rolled by the pair rollers arranged in a profiling mode for multiple times, so that the special-shaped section formed after rolling is almost similar to the shape of the final SIM card holder, the subsequent processing amount is reduced, and the waste of the raw materials is reduced to the maximum extent; the specific strength of the titanium alloy TC4 is far greater than that of stainless steel, so that the manufactured mobile phone card support meets the requirement of the current mobile phone on increasingly lighter weight. When rolling, except the roller with the shape of the rolling surface similar to that of the clamping support, the rolling surface of the roller is provided with an annular bulge and an annular recess matched with the rivet hole on the clamping support body, and the blind hole with the shape extremely close to that of the rivet hole is gradually formed after rolling for many times, so that the titanium alloy waste amount of the rivet hole machined by subsequent CNC engraving is reduced. When the inner side wall of the card body is rolled, the roll shaft of the roll in the process is vertical to the roll shaft of the roll in the process (the titanium alloy bar is continuously rolled for twelve times in a circulating way), and because the processing process mode is that the rolling is carried out for multiple times to enable the raw material to gradually approach to the shape of a finished product, the process of 'three to four times rolling and heat treatment for the inner side wall of the card body of the card holder' can be arranged after the non-final three-four processes of 'continuously rolling and heat treatment for twelve times for titanium alloy bar', although the roll is used for bearing the groove for placing the SIM card in order to roll the inner side wall of the card holder's card body, the roll can extrude the inner side wall part of the card holder's card body, but because the roll is arranged in the former eight times rolling of 'continuously rolling and heat treatment for twelve times for titanium alloy bar', the titanium alloy bar can be continuously rolled for twelve times in a circulating way, Heat treatment "to complete the subsequent rolling that is closer to the final finished shape.
Drawings
Fig. 1 is a schematic view of a processing process of a special-shaped material for a SIM card holder of a titanium alloy mobile phone according to the present invention;
FIG. 2 is a longitudinal cross-sectional view of the two pairs of rolls for rolling the titanium alloy bar furthest to the left in FIG. 1;
FIG. 3 is a schematic longitudinal cross-sectional view of a pair of rolls to the right of the leftmost tube furnace of FIG. 1;
FIG. 4 is an enlarged schematic view of a middle portion of FIG. 3;
FIG. 5 is a schematic view of the shape of the semi-finished product after the rolling process of the present invention and the subsequent CNC engraving process;
figure 6 is a schematic view of the card body of figure 5.
In the figure: 1. a titanium alloy bar; 2. rolling; 3. an annular projection; 4. an annular recess; 5. a tube furnace; 6. clamping and supporting; 7. a card body; 8. rivet holes; 9. a groove.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
as shown in fig. 1 to 4, the invention is a processing technology of a special-shaped material for a titanium alloy mobile phone SIM card holder, comprising the steps of continuously circulating for twelve times rolling and heat treating a titanium alloy bar 1 to prepare a profiling section of the mobile phone SIM card holder, wherein the rolling process adopts at least one pair of rollers 2 (one pair or two pairs or one pair plus one pair) to roll the titanium alloy bar 1, two rollers 2 of the pair of rollers 2 are respectively provided with an annular bulge 3 and an annular recess 4, the annular bulge 3 is matched with the annular recess 4, the annular bulge 3 and the annular recess 4 are concentric with the rollers 2, and the annular bulge and the annular recess are matched with the profile shape after each rolling; the heat treatment adopts a tube furnace 5, the heat treatment temperature is 600 +/-20 ℃, the length of the tube furnace 5 is 6 meters, and the speed of the titanium alloy bar 1 passing through the tube furnace 5 is 3 m/min. The material of the titanium alloy bar 1 is titanium alloy TC 4. The rolling amount of each rolling procedure is 6-8%. And air with oxygen and hydrogen removed is introduced in the heat treatment process to serve as protective gas.
Example two:
the difference from the first embodiment is that, as shown in fig. 5 and 6, in the continuous cycle twelve-time rolling and heat treatment process of the titanium alloy bar, the rivet hole 8 on the card body 7 of the card holder 6 is machined into a blind hole by the continuous cycle rolling, and then is machined into the rivet hole 8 by CNC engraving. In the continuous and twelve-time circulating rolling and heat treatment process of the titanium alloy bar, three to four continuous and circulating rolling and heat treatment processes (the rightmost side in fig. 1 shows two processes of rolling and heat treatment of the inner side wall of the card body 7 of the card support 6) for rolling the inner side wall of the card body 7 of the card support 6 to form a groove 9 for bearing and placing the SIM card are also arranged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The processing technology of the special-shaped material for the SIM card holder of the titanium alloy mobile phone is characterized by comprising the following steps of carrying out continuous twelve groups of circulating treatment on a titanium alloy bar to prepare a profiling section of the SIM card holder of the mobile phone, wherein each group of treatment procedures comprises a heat treatment procedure after one-time rolling and rolling, at least one pair of rollers are adopted for rolling the titanium alloy bar in the rolling procedure, the curved surface of the roller for rolling is provided with annular bulges and/or annular depressions which are concentric with the corresponding rollers, and the annular bulges and the annular depressions are matched with the shapes of the sections rolled each time in a profiling way; the heat treatment adopts a tube furnace, the heat treatment temperature is 600 +/-20 ℃, the length of the tube furnace is 6 meters, and the speed of the titanium alloy bar passing through the tube furnace is 3 m/min.
2. The processing technology of the special-purpose special-shaped material for the SIM card holder of the titanium alloy mobile phone according to claim 1, wherein the material of the titanium alloy bar is titanium alloy TC 4.
3. The processing technology of the special-purpose special-shaped material for the SIM card holder of the titanium alloy mobile phone according to claim 2, wherein the rolling amount of each rolling procedure is 6-8%.
4. The processing technology of the special-purpose special-shaped material for the SIM card holder of the titanium alloy mobile phone according to claim 3, wherein air with oxygen and hydrogen removed is introduced in the heat treatment process as a protective gas.
5. The processing technology of the special profile for the SIM card holder of the titanium alloy mobile phone, according to claim 4, characterized in that in the continuous and twelve-time circulating rolling and heat treatment process of the titanium alloy bar, the rivet hole on the card body of the card holder is processed into a blind hole through continuous and circulating rolling and then is processed into a rivet hole through CNC engraving.
6. The processing technology of the special-shaped material for the SIM card holder of the titanium alloy mobile phone according to claim 5, wherein three to four continuous circulating rolling and heat treatment processes of rolling and heat treatment of the inner side wall of the card body of the card holder are further provided in the continuous circulating twelve-time rolling and heat treatment process of the titanium alloy bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112252.2A CN110935725B (en) | 2019-11-14 | 2019-11-14 | Processing technology of special-shaped material for SIM card holder of titanium alloy mobile phone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911112252.2A CN110935725B (en) | 2019-11-14 | 2019-11-14 | Processing technology of special-shaped material for SIM card holder of titanium alloy mobile phone |
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| CN110935725A CN110935725A (en) | 2020-03-31 |
| CN110935725B true CN110935725B (en) | 2021-06-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110201A (en) * | 1997-06-20 | 1999-01-19 | Nkk Corp | Method and apparatus for rolling section steel with flange |
| CN106345804A (en) * | 2016-10-08 | 2017-01-25 | 山东钢铁股份有限公司 | Steel channel for pipe ditch cover plate, rolling device of steel channel for pipe ditch cover plate and rolling method |
| CN108202087A (en) * | 2016-12-19 | 2018-06-26 | 丰田自动车株式会社 | The manufacturing method of Varying-thickness metallic plate, the manufacturing method of pressed part and processing machine |
| CN208321724U (en) * | 2018-03-20 | 2019-01-04 | 中冶赛迪工程技术股份有限公司 | Hot plate/with on-line continuous hot bending shape device and with the production line of the device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9783865B2 (en) * | 2014-04-18 | 2017-10-10 | GM Global Technology Operations LLC | Thermal-assisted roll forming of high strength material |
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- 2019-11-14 CN CN201911112252.2A patent/CN110935725B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110201A (en) * | 1997-06-20 | 1999-01-19 | Nkk Corp | Method and apparatus for rolling section steel with flange |
| CN106345804A (en) * | 2016-10-08 | 2017-01-25 | 山东钢铁股份有限公司 | Steel channel for pipe ditch cover plate, rolling device of steel channel for pipe ditch cover plate and rolling method |
| CN108202087A (en) * | 2016-12-19 | 2018-06-26 | 丰田自动车株式会社 | The manufacturing method of Varying-thickness metallic plate, the manufacturing method of pressed part and processing machine |
| CN208321724U (en) * | 2018-03-20 | 2019-01-04 | 中冶赛迪工程技术股份有限公司 | Hot plate/with on-line continuous hot bending shape device and with the production line of the device |
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