PATENT CLAIM ANALYSIS

Application Number: 15909018
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["425", "470000"]

Abstract:
A molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, can be produced by a centrifugal casting method comprising a first step of heating at higher than 1140° C. and lower than 1200° C., and a second step of heating at 1080-1140° C. after melting the raw material powder.

Claim (Index 1):
A method for producing a molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, comprising the steps of\n charging a raw material for the lining layer into a steel cylinder, said raw material comprising 40-70 parts by mass of nickel-based alloy powder containing 1-5% by mass of B, and 60-30 parts by mass of tungsten carbide powder; melting said raw material for the lining layer while rotating said cylinder at 5-30 rpm; increasing the number of rotation of said cylinder for centrifugal casting, to form a centrifugally cast layer comprising an outside lining layer and an inside particle-lack layer on an inner surface of said cylinder; and removing said particle-lack layer by machining; said raw material for the lining layer being melted by a first step of heating at higher than 1140\u00b0 C. and lower than 1200\u00b0 C., and a second step of heating at 1080-1140\u00b0 C. after said first heating step.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 1.50877
- Patent Class: 425.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15120675', '14912727', '14912511', '11575127', '14911947']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7138721944769002
- 35 USC 102 Novelty (BERT): 0.5265370723816355
- Combined Prediction Score: 0.6951386822673737
- Mean Citation Score: 210.681804
- Max Citation Score: 353.71262
- Similarity Product: 278.64502452211025

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