PTC thermistor alloy wire and preparation method thereof
A thermistor and alloy wire technology, applied in the field of alloy wire, can solve the problems of not forming a series of products and a single variety, and achieve the effect of avoiding sulfur corrosion and increasing service life
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] (Example 1, PTC thermistor alloy wire)
[0036] The chemical composition of the alloy wire of the PTC thermistor of this embodiment in terms of weight percentages are: nickel (Ni) 78.0%, silicon (Si) 0.6%, manganese (Mn) 0.3%, and yttrium (Y) 0.02%~0.04%. (0.03% in this embodiment), mixed rare earth 0.04% to 0.06% (0.05% in this embodiment), carbon (C) less than or equal to 0.05%, sulfur (S) less than or equal to 0.01%, phosphorus (P) less than Equal to 0.001%, and the balance is iron (Fe).
[0037] The average temperature coefficient of resistance of the PTC thermistor alloy wire of this embodiment from 0°C to 150°C is 4800×10 -6 / ℃; The accuracy of the resistance temperature coefficient is ±50×10 -6 / ℃; the resistivity of the alloy wire at 20℃ is (0.19±0.02)μΩ·m. The tensile strength of the soft alloy wire is greater than 390Mpa.
[0038] Since the emerging electrical equipment requires more sensitive temperature control and adjustment resistance elements, the upper limit ...
Embodiment 2 to Embodiment 6
[0056] (Example 2 to Example 6, PTC thermistor alloy wire)
[0057] The chemical composition of the PTC thermistor alloy wires of Example 2 to Example 6 are shown in Table 3 in terms of weight percentage:
[0058] Table 3 Example 1 to Example 6
[0059]
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Nickel (Ni)
78.0％
82％
64.45％
53％
49％
45％
Silicon (Si)
0.6％
0.28
0.1
0.1
0.25
0.25
Manganese (Mn)
0.3％
0.35
0.22
0.22
0.35
0.35
Yttrium (Y)
0.03％
0.03
0.03
0.03
0.03
0.03
Mixed rare earth
0.05％
0.05
0.05
0.05
0.05
0.05
Aluminum (Al)
--
--
--
--
0.45
0.45
Carbon (C)
≤0.05％
≤0.05％
≤0.05％
≤0.05％
≤0.05％
≤0.05％
[0060] Sulfur (S)
≤0.01％
≤0.01％
≤0.01％
≤0.01％
≤0.01％
≤0.01％
Phosphorus (P)
≤0.001％
≤0.001％
≤0.001％
≤0.001％
≤0.001％
≤0.001％
Iron (Fe)
Margin
Margin
Margin
Margin
Margin
Margin
[0061] The alloy wires of Examples 1 to 6 were observed with the naked eye: there was no joint, and the surface was smooth, smooth, and flat, without burrs an...
Embodiment 7
[0075] (Embodiment 7, Preparation method of PTC thermistor alloy wire)
[0076] The preparation method of the PTC thermistor alloy wire of this embodiment specifically includes the following steps:
[0077] ① Preparation of raw materials: Nickel is the standard of GB6516 No. 1 electrolytic nickel Ni-1; silicon is the standard of GB2881 first grade crystalline silicon Si-1; manganese is the standard of GB3418 electrolytic manganese DJMn99.5; yttrium is the standard of Q The rare earth metal Y-3 of / HUAC23; the mischmetal is the mischmetal RECE-45 with the standard of GB / T4153; iron is the raw material pure iron DT3 with the standard of GB / T9971;
[0078] ②Vacuum melting:
[0079] The equipment used for vacuum melting is the EG-25 vacuum induction furnace intermediate frequency machine equipment produced by Shanghai Electric Furnace Factory, of which:
[0080] a. The motor power of the variable frequency unit is 60 kW, the motor is three-phase, the generator voltage is 375 / 750 volts, the...
PUM
| Property | Measurement | Unit |
|---|---|---|
| electrical resistivity | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| electrical resistivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to view more - R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap