{'fraction_non_alphanumeric': 0.018005540166204988, 'fraction_numerical': 0.009695290858725761, 'mean_word_length': 5.455357142857143, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Development of superheat-resistant enameled wire

With a view to developing superheat-resistant enameled wires capable of continuous service at 300°C or higher temperatures we studied the applicability of synthetically obtained borosiloxane resins whose chemical structure suggested excellent heat resistance.1 As a result, a solvent-soluble varnish made up mainly of the borosiloxane resins was obtained, and through use of this varnish two types of superheat-resistant enameled wires have been developed. It has been demonstrated in a series of tests that these wires are by far more heat-resistant than the conventional heat-resistant polyimide wire and are capable of prolonged service at 450°C or higher temepratures.