[Fact]
Unlike in · DG2 DG1, for C / H is not, ZPP is more圧填by molding pressure, TTFP is in the 0.1 ~ 0.2msec about slower trend compared to DG1. • The current BW the two companies (Heraeusu, Sigmund Cohn) has been purchased from the Heraeus and Sigmund Cohn, who made Sigmund Cohn is a fast TTFP. The reason for this is because people made of Sigmund Cohn is a small percentage of tungsten. In other words, it is high resistance temperature coefficient of Sigmund. = TCR high ⇒ difference in the proportion of this tungsten, Heraeus, the production at a rate of tungsten in the ingot state. Ingot measured in (platinum / tungsten after mixing) state, 8 ± 0.5% Sigmund Cohn, the alloy manufacturing tungsten input as 8 percent. Ingot measured in (platinum / tungsten after mixing) state, 7-7.5%. In ⇒Sigmund Cohn, compared to when the material is turned on, the reason why the percentage of tungsten in the ingot state is reduced is in order to become sublimated at the time of melting. Therefore, in Heraeus, it is being charged 8 + α% tungsten. [Change] has been the request of the end of 2013 in significant price increases than Sigmund Cohn (0.151 $ / ft⇒0.231 $ / ft). This time, the cost, it is desired to increase the proportion of from Heraeus, the proportion of from Heraeus tungsten, since the fixed 8% as a standard specification, including companies, that reduce the proportion of tungsten becomes special specification Price It can not be employed in order to go up. Meanwhile, the resistance value of the initiator and can not be changed because of the customer's request, it is possible to increase the resistivity (Ω / m), the length of the BW is reduced, per unit length in the current application of the same 1.2A Energy In order to increase, faster heat release rate of BW is, TTFP even faster. Therefore, by changing the resistance to early of the TTFP, to reduce costs. By the way different Daicel of BW specifications and SDI specification, towards the SDI specification, high resistivity. Therefore By sharing the SDI and BW specifications, prospects for further cost-down, and because there is also proven to employ SDI specification. Also, when using this B / W, when attempting to resistance to 2.1Ω, the wire is shortened, the current state of the header glass diameter (2.37mm), there is no mass-production conditions to meet the standards. For this reason, it will adopt the glass diameter (2.29mm) with a proven track record in SDI. Glass size, and 2.29mm smaller, after the ESD is applied, the wire is sticking to the pin, since the resistance is reduced, and this diameter.
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