PATENT CLAIM ANALYSIS

Application Number: 16177870
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-02
Patent Classification: ["148", "661000"]

Abstract:
Provided is a method for manufacturing an HPF part having excellent bending properties including: manufacturing a hot rolled steel sheet; coiling the hot rolled steel sheet within a range of 450° C. to 750° C. for a time satisfying Expression 1; cold rolling, annealing and then hot dip aluminum plating on the annealed steel sheet; heating the hot dip aluminum plated steel sheet to a temperature of 850° C. to 1000° C. and maintaining the hot dip aluminum plated steel sheet for a certain period of time; and hot forming the heated steel and cooling at a temperature within a range of 200° C. or lower at a cooling speed of 20° C./s to 1000° C./s at the same time to manufacture an HPF part, [Expression 1] 190,000≤[coiling temperature (CT)×Time (min)]/2≤350,000, in the Relational Expression 1, Time refers to a time taken to reach 200° C. from coiling temperature.

Claim (Index 1):
A method for manufacturing an HPF part having excellent bending properties comprising:\n a process of manufacturing a hot rolled steel sheet prepared by comprising C: 0.18% to 0.25%, Si: 0.1% to 0.5%, Mn: 0.9% to 1.5%, P: 0.03% or less, S: 0.01% or less, Al: 0.01% to 0.05%, Cr: 0.05% to 0.5%, Ti: 0.01% to 0.05%, B: 0.001% to 0.005%, N: 0.009% or less, a balance of Fe and other impurities by wt %; a process of coiling the hot rolled steel sheet at a temperature within a range of 450\u00b0 C. to 750\u00b0 C. for a time satisfying Relational Expression 1; a process of cold rolling, annealing and then conducting hot dip aluminum plating on the annealed steel sheet; a process of heating the hot dip aluminum plated steel sheet to a temperature of 850\u00b0 C. to 1000\u00b0 C. and then maintaining the hot dip aluminum plated steel sheet at the temperature for a certain period of time; and a process of hot forming the heated steel material and cooling thereof at a temperature within a range of 200\u00b0 C. or lower at a cooling speed of 20\u00b0 C./s to 1000\u00b0 C./s at the same time to manufacture an HPF part,\n 190,000\u2264[coiling temperature (CT)\u00d7Time (min)]/2\u2264350,000 \u2003\u2003[Relational Expression 1] \n in the Relational Expression 1, Time refers to a time taken to reach 200\u00b0 C. from coiling temperature.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 98.0
- Lexical Diversity: 2.09877
- Patent Class: 148.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15250079', '15622794', '10655361', '15250022', '14888394']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7695617578726037
- 35 USC 102 Novelty (BERT): 0.5537437152867885
- Combined Prediction Score: 0.7479799536140223
- Mean Citation Score: 313.49896
- Max Citation Score: 378.97455
- Similarity Product: 336.66299397427434

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

Dataset: test