CN111210922A - Radiation-proof composite lead plate - Google Patents
Radiation-proof composite lead plate Download PDFInfo
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- CN111210922A CN111210922A CN201811391915.4A CN201811391915A CN111210922A CN 111210922 A CN111210922 A CN 111210922A CN 201811391915 A CN201811391915 A CN 201811391915A CN 111210922 A CN111210922 A CN 111210922A
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- parts
- radiation
- lead plate
- powder
- proof
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/12—Laminated shielding materials
- G21F1/125—Laminated shielding materials comprising metals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Powder Metallurgy (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a radiation-proof composite lead plate which is formed by welding a copper plate and a lead plate. The lead plate is prepared from the following raw materials in parts by weight: 98-102 parts of lead powder, 8-12 parts of titanium dioxide, 1-4 parts of methyl methacrylate, 1-10 parts of an initiator and 15-30 parts of a cross-linking agent. The radiation-proof composite lead plate disclosed by the invention is simple in structure, simple in preparation method and process steps, low in cost, good in radiation-proof effect, good in protection effect, good in sensory effect, long in weather resistance and long in service life, and is a novel radiation-proof shielding material.
Description
Technical Field
The invention belongs to the technical field of radiation-proof lead glass, and particularly relates to a radiation-proof composite lead plate.
Background
With the development of science and technology, the application requirements and the application fields of the radiation-proof materials are wider and wider. The radiation-proof material is a material capable of absorbing or dissipating radiation energy and protecting a human body or an instrument, and the radiation-proof material is widely applied to the fields of medical treatment, aerospace, nuclear energy and the like along with the development of economy.
Pure copper is a rose metal, and is purple after a copper oxide film is formed on the surface, so that the industrial pure copper is often called composite or electrolytic copper. The fire smelting can obtain 99-99.9% pure copper, and the electrolysis can make the purity of the copper reach 99.95-99.99%. The density was 8-9g/cm3, melting point 1083 ℃. Has good electric conductivity, heat conductivity, corrosion resistance and processability, and can be used for welding and fiber welding. The shielding effect on nuclear magnetism shielding of 10Mhz to 100Mhz is good.
Disclosure of Invention
The invention aims to solve the technical problem of providing a radiation-proof composite lead plate.
The purpose of the invention is realized by the following technical scheme:
a radiation-proof composite lead plate is formed by welding a copper plate and a lead plate.
Preferably, the lead plate is prepared from the following raw materials in parts by weight: 98-102 parts of lead powder, 8-12 parts of titanium dioxide, 1-4 parts of methyl methacrylate, 1-10 parts of an initiator and 15-30 parts of a cross-linking agent.
The initiator is formed by mixing tungsten powder, tin powder and vanadium powder, wherein the mass ratio of the tungsten powder to the tin powder to the vanadium powder is 1: 1: .
Preferably, the welding is explosive welding or transition liquid phase welding.
Preferably, the copper plate is purchased or manufactured, and can also be manufactured by the method of example 1 in patent application No. 201410492666.3.
Preferably, the thickness of the copper plate is 0.5-4.5 mm.
Preferably, the thickness of the lead plate is 2-16 mm.
The radiation-proof composite lead plate disclosed by the invention is simple in structure, simple in preparation method and process steps, low in cost, good in radiation-proof effect, good in protection effect, good in sensory effect, long in weather resistance and long in service life, and is a novel radiation-proof shielding material.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
The invention will be further described with reference to the following examples, but the scope of the invention is not limited to these examples.
Example 1
Lead plate raw materials (parts by weight): 100 parts of lead powder, 9 parts of titanium dioxide, 1.5 parts of methyl methacrylate, 3 parts of an initiator and 15 parts of a cross-linking agent.
The initiator is prepared from tungsten powder, tin powder and vanadium powder in a mass ratio of 1: 1: 1, and uniformly mixing to obtain the product.
Preparing a lead plate: melting lead powder in a heating furnace at 400 ℃, adding titanium dioxide, methyl methacrylate and corrosion-resistant metal powder, uniformly mixing, rolling at the initial rolling temperature of 310 ℃, the final rolling temperature of 180 ℃, the rolling speed of 3m/s, cooling at the cooling speed of 4 ℃/s and the final temperature of 40 ℃ after cooling. The thickness of the lead plate is 2mm, the length is 1000mm, and the width is 780 mm.
The copper plate has a thickness of 0.5mm, a length of 980mm and a width of 780 mm.
Preparing a radiation-proof composite lead plate: the copper and lead plates were explosion welded according to the method of example 1 of patent application No. 201010592915.8. The radiation-proof composite lead plate of example 1 was obtained.
Essentially the same as example 1, except that: the initiator is prepared from tin powder and vanadium powder in a mass ratio of 1: 1, and uniformly mixing to obtain the product. The radiation-proof composite lead plate of example 5 was obtained.
Finally, it should be noted that: therefore, although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the present invention, and all such modifications and improvements are intended to be covered by the following claims.
Claims (3)
1. The radiation-proof composite lead plate is characterized by being formed by welding a copper plate and a lead plate; the lead plate is prepared from the following raw materials in parts by weight: 98-102 parts of lead powder, 8-12 parts of titanium dioxide, 1-4 parts of rare earth oxide, 1-10 parts of initiator and 15-30 parts of cross-linking agent. The initiator is formed by mixing tungsten powder, tin powder and vanadium powder, wherein the mass ratio of the tungsten powder to the tin powder to the vanadium powder is 1: 1: 1.
2. the radiation-protective composite lead plate of claim 1, wherein: the thickness of the copper plate is 0.5-4.5 mm.
3. The radiation-protective composite lead plate of claim 1, wherein: the thickness of the lead plate is 2-16 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391915.4A CN111210922A (en) | 2018-11-21 | 2018-11-21 | Radiation-proof composite lead plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391915.4A CN111210922A (en) | 2018-11-21 | 2018-11-21 | Radiation-proof composite lead plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111210922A true CN111210922A (en) | 2020-05-29 |
Family
ID=70786542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811391915.4A Pending CN111210922A (en) | 2018-11-21 | 2018-11-21 | Radiation-proof composite lead plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111210922A (en) |
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2018
- 2018-11-21 CN CN201811391915.4A patent/CN111210922A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200529 |