PATENT CLAIM ANALYSIS

Application Number: 16234025
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["427", "446000"]

Abstract:
Provided are a high temperature and chloride corrosion resistant NiCrTiAlSi/La2O3 coating at a flue gas side of a waste incineration power generating boiler and a preparation method thereof. The method comprises the following steps: (1) preparing a composite powder; (2) uniformly grinding the composite powder to obtain a spherical composite powder, then drying the spherical composite powder; (3) cleaning and roughening a surface of a substrate; (4) using a thermal spraying technique to spray a primer layer on a heating surface; (5) using a thermal spraying technique to spray the spherical composite powder onto the primer layer; and (6) cooling. The coating obtained by the method comprises a composite coating spray-coated on a surface of the primer layer. A rare element in the form of La 2 O 3  is added to the coating to purify a grain boundary of the coating. The method strengthens the grain boundary and promotes the formation of an oxide film to alter the morphology of the coating, refine a crystal grain, and improve a high temperature and corrosion resistance and oxidation resistance of the coating.

Claim (Index 5):
The method of  claim 1 , wherein in the step (4), the primer layer has a spraying thickness of 80-100 \u03bcm; and in the step (5), the spherical composite powder has a spraying thickness of 0.3-0.5 mm.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 98.0
- Lexical Diversity: 2.20213
- Patent Class: 427.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15301718', '11686813', '12443690', '13977218', '11810210']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7955357672484084
- 35 USC 102 Novelty (BERT): 0.4982812796698747
- Combined Prediction Score: 0.7658103184905549
- Mean Citation Score: 148.326886
- Max Citation Score: 153.08145
- Similarity Product: 92.17454050135017

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test