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Low-temperature additive manufacturing wire capable of controlling grain size as well as preparation and application thereof

A technology of additive manufacturing and grain size, which is applied in the field of low-temperature additive manufacturing filament and its preparation and application, and can solve the problems of reduced impact toughness of printed products

Active Publication Date: 2021-08-31
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the rapid heating and cooling process characteristics of additive manufacturing, the impact toughness of printed products is significantly reduced

Method used

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  • Low-temperature additive manufacturing wire capable of controlling grain size as well as preparation and application thereof
  • Low-temperature additive manufacturing wire capable of controlling grain size as well as preparation and application thereof
  • Low-temperature additive manufacturing wire capable of controlling grain size as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In terms of mass percentage, including the following raw material ratios:

[0032] C: 0.03%; Si: 0.35%; Mn: 1.5%; P: 0.0052%; S: 0.0031%; Nb: 0.07%; Ni: 3.0%; Mo: 0.4%; Cr: 0.15%; Al: 0.022%; Cu: 0.0064%; Ti: 0.01%; B: 0.004%, and the balance is Fe.

Embodiment 2

[0034] In terms of mass percentage, including the following raw material ratios:

[0035] C:0.08%;Si:0.3%;Mn:1%;P:0.01%;S:0.0034%;Nb:0.1%;Ni:3%;Mo:0.3%;Cr:0.1%;V:0.0051%; Al: 0.049%; Cu: 0.038%; Ti: 0.022%; B: 0.0025%, and the rest is Fe.

Embodiment 3

[0037] In terms of mass percentage, including the following raw material ratios:

[0038] C: 0.03%; Si: 0.35%; Mn: 1.5%; P: 0.0052%; S: 0.0031%; Nb: 0.07%; Ni: 3.0%; Mo: 0.4%; Cr: 0.15%; Al: 0.022%; Cu: 0.0064%; Ti: 0.01%; B: 0.004%, and the balance is Fe.

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PUM

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Abstract

The invention discloses a low-temperature additive manufacturing wire capable of controlling the grain size as well as preparation and application of the low-temperature additive manufacturing wire. The low-temperature additive manufacturing wire comprises, by mass: 0.03%-0.10% of C, less than or equal to 0.4% of Si, 0.5%-1.5% of Mn, less than or equal to 0.010% of P, less than or equal to 0.005% of S, 0.07%-0.12% of Nb, 1.6%-4.0% of Ni, less than or equal to 0.4% of Mo, 0.01%-0.20% of Cr, less than or equal to 0.02% of V, less than or equal to 0.05% of Al, less than or equal to 0.03% of Cu, 0.006%-0.02% of Ti, less than or equal to 0.005% of B, and the balance Fe. The wire has good impact toughness under different additive manufacturing processes, the change of low-temperature toughness along with temperature is small, and the wire can be used for additive manufacturing of products in the field of oil and gas transportation in a low-temperature environment.

Description

technical field [0001] The invention belongs to the field of additive manufacturing printing materials, and relates to a wire material for low-temperature additive manufacturing with controlled crystal grain size, as well as its preparation and application. Background technique [0002] Additive manufacturing, as the ultimate presentation of 3D digitization, has become an important means of high-end equipment manufacturing because it can realize flexible on-site printing of complex shapes and positions. Additive manufacturing materials are mainly divided into two categories: metal powder materials and metal wire materials. Among them, the additive manufacturing of metal wire is more suitable for the rapid manufacturing of medium to large equipment. [0003] Wire materials for additive manufacturing usually require good weldability. At present, the wire materials for domestic laser, electron beam and arc additive manufacturing are mainly titanium alloys, nickel-based alloys...

Claims

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Application Information

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IPC IPC(8): B23K26/348B23K26/70B33Y10/00B33Y30/00
CPCB23K26/348B23K26/702B33Y10/00B33Y30/00Y02P10/25
Inventor 胡美娟吉玲康池强齐丽华马秋荣王俊
Owner BC P INC CHINA NAT PETROLEUM CORP
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