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Titanium alloy coated mould material for photographic trade and manufacturing method thereof

A technology of mold material and titanium alloy, which is applied in the photographic industry to apply titanium alloy coating mold material and its manufacturing field, can solve the problems of low hardness, high control requirements, unsuitable for making photographic emulsion equipment, etc., and achieve the effect of high material hardness

Inactive Publication Date: 2005-08-24
CHINA LUCKY FILM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, a variety of coating molds made of stainless steel have been used in China, but they are not ideal in practical applications. This is because the photosensitive emulsion contains highly corrosive halides. Experiments have confirmed that 0Cr14NiMn3Al is placed in the photosensitive emulsion solution. Leaf-shaped corrosion traces will appear after hours, this corrosion not only changes the geometry of the coating mold, affects the coating effect and reduces the service life of the coating mold, but also the corrosion products are brought into the photosensitive coating layer to affect the photographic performance
At present, the SUS317 stainless steel (Japanese standard) used in the production of coating molds abroad has low hardness (HB146), high requirements for material process control, easy to scratch when used, and difficult to process and manufacture. In addition, the cleaning of the coating system Most of the liquid is a strong oxidizing agent, such as NaClO, and the coating mold is easily oxidized
The coating mold is made of pure titanium, although the corrosion resistance is satisfactory, but due to the low hardness of pure titanium, the processing accuracy is not easy to control, and the surface is easily scratched, which leads to coating disadvantages, so it cannot meet the use requirements
Chinese patent CN1170767A discloses a titanium alloy material. Although the material has excellent corrosion resistance, it contains Cu element, which is not suitable for making photographic emulsion equipment.

Method used

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  • Titanium alloy coated mould material for photographic trade and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A production method for coating mold materials with titanium alloys in the photographic industry, comprising: adopting zero-grade sponge titanium, industrial pure iron, industrial pure aluminum foil, aluminum strips, according to (weight percentage) Al: 5.7%, Fe: 1.9%, at the same time Control the oxygen content and other impurity content within the required range, and press the electrode; the pressed electrode is argon-arc welded under vacuum or argon protection, and it is melted twice in a vacuum consumable electric arc furnace and cast into an alloy ingot ;Heat the alloy ingot in an electric furnace and then carry out billet forging, and the temperature of the billet forging is controlled at 1150°C; put the semi-finished product that has been forged and billeted in an electric furnace and then heat it, and then carry out thermal processing, and the thermal processing temperature is controlled at 900°C; The first deformation of the semi-finished product thermal process...

Embodiment 2

[0017] Use zero-grade sponge titanium, industrial pure iron, industrial pure aluminum foil, aluminum strip, according to (weight percentage) Al: 7.0%, Fe: 1.3%, at the same time control the content of oxygen and other impurities within the required range, and press the electrode; The pressed electrodes are welded by argon arc under vacuum or argon protection, and cast into alloy ingots after being smelted twice in a vacuum consumable electric arc furnace; The forging temperature is controlled at 1050°C; the semi-finished product that has been forged and opened is heated in an electric furnace for thermal processing, and the thermal processing temperature is controlled at 950°C; the first deformation of the semi-finished product is 65%, and the remaining heat deformation is 40%, during which the temperature zone above the α+β / β phase transformation is deformed, and the deformation amount is 30%. This cycle is carried out twice, and finally made into bars; The heat treatment sys...

Embodiment 3

[0019] Use zero-grade sponge titanium, industrial pure iron, industrial pure aluminum foil, aluminum strip, according to (weight percentage) Al: 5.0%, Fe: 2.2%, at the same time control the content of oxygen and other impurities within the required range, and press the electrode; The pressed electrodes are welded by argon arc under vacuum or argon protection, and cast into alloy ingots after being smelted twice in a vacuum consumable electric arc furnace; The forging temperature is controlled at 1100°C; the slab is placed in a resistance furnace, the heating temperature is controlled at 850°C, and it is rolled with two fires in a 200-ton vacuum rolling mill. The deformation in the first fire is 65%, and the deformation in the last fire is 80%. %, finally get the sheet. For heat treatment of the plate made by thermal processing, the solid solution heat treatment system is: 910°C / 90min / WQ, at this time, the hardness HRC value of the material is 36.7; after processing and forming...

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Abstract

The invention relates to a Ti-alloy material, especially a photographic Ti-alloy mould-coating material and making method. Its components (wt%): Ti group; Al 5.0%-7.0%; Fe 1.3%-2.2%; C 0%-0.05%; N 0-0.035%; H 0-0.0125%; O 0- 0.015%. Make melting forge and solid smelting treatment on the Ti alloy: 850 deg.C-950 deg.C / 30min-90min / WQ, to make the Ti alloy become a soft material convenient to mechanical process, the hardness less than or equal to 37.2; and then process into blank parts for aging heat treatment: 450 deg.C-550 deg.C / 6h-12h / AC, the hardness more than or equal to 40. It has strong corrosion stability in many media, especially in high silver chloride emulsion, without effect on photographic performance.

Description

Technical field: [0001] The invention relates to a titanium alloy material, in particular to a titanium alloy coating mold material used in the photographic industry and a manufacturing method thereof. technical background: [0002] Coating dies in the photographic industry are a central component of the emulsion coating process. In recent years, a variety of coating molds made of stainless steel have been used in China, but they are not ideal in practical applications. This is because the photosensitive emulsion contains highly corrosive halides. Experiments have confirmed that 0Cr14NiMn3Al is placed in the photosensitive emulsion solution. After hours, there will be leaf-shaped corrosion marks, which not only change the geometry of the coating mold, affect the coating effect and reduce the service life of the coating mold, but also corrode products are brought into the photosensitive coating layer to affect the photographic performance. At present, the SUS317 stainless st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C14/00G03C1/74
Inventor 王凯谭绍勐黄尚鸿马超于振涛邓超李东邓矩杨华斌
Owner CHINA LUCKY FILM CORP